Focus on:
All days
Dec 1, 2014
Dec 2, 2014
Dec 3, 2014
Dec 4, 2014
All sessions
Annual General Assembly of all Cluster members
End of Science Week 2014
Reception and poster session
Hide Contributions
Compact style
Indico style
Indico style - inline minutes
Indico style - numbered
Indico style - numbered + minutes
Indico Weeks View
Back to Conference View
Choose Timezone
Use the event/category timezone
Specify a timezone
Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmara
Africa/Bamako
Africa/Bangui
Africa/Banjul
Africa/Bissau
Africa/Blantyre
Africa/Brazzaville
Africa/Bujumbura
Africa/Cairo
Africa/Casablanca
Africa/Ceuta
Africa/Conakry
Africa/Dakar
Africa/Dar_es_Salaam
Africa/Djibouti
Africa/Douala
Africa/El_Aaiun
Africa/Freetown
Africa/Gaborone
Africa/Harare
Africa/Johannesburg
Africa/Juba
Africa/Kampala
Africa/Khartoum
Africa/Kigali
Africa/Kinshasa
Africa/Lagos
Africa/Libreville
Africa/Lome
Africa/Luanda
Africa/Lubumbashi
Africa/Lusaka
Africa/Malabo
Africa/Maputo
Africa/Maseru
Africa/Mbabane
Africa/Mogadishu
Africa/Monrovia
Africa/Nairobi
Africa/Ndjamena
Africa/Niamey
Africa/Nouakchott
Africa/Ouagadougou
Africa/Porto-Novo
Africa/Sao_Tome
Africa/Tripoli
Africa/Tunis
Africa/Windhoek
America/Adak
America/Anchorage
America/Anguilla
America/Antigua
America/Araguaina
America/Argentina/Buenos_Aires
America/Argentina/Catamarca
America/Argentina/Cordoba
America/Argentina/Jujuy
America/Argentina/La_Rioja
America/Argentina/Mendoza
America/Argentina/Rio_Gallegos
America/Argentina/Salta
America/Argentina/San_Juan
America/Argentina/San_Luis
America/Argentina/Tucuman
America/Argentina/Ushuaia
America/Aruba
America/Asuncion
America/Atikokan
America/Bahia
America/Bahia_Banderas
America/Barbados
America/Belem
America/Belize
America/Blanc-Sablon
America/Boa_Vista
America/Bogota
America/Boise
America/Cambridge_Bay
America/Campo_Grande
America/Cancun
America/Caracas
America/Cayenne
America/Cayman
America/Chicago
America/Chihuahua
America/Costa_Rica
America/Creston
America/Cuiaba
America/Curacao
America/Danmarkshavn
America/Dawson
America/Dawson_Creek
America/Denver
America/Detroit
America/Dominica
America/Edmonton
America/Eirunepe
America/El_Salvador
America/Fort_Nelson
America/Fortaleza
America/Glace_Bay
America/Goose_Bay
America/Grand_Turk
America/Grenada
America/Guadeloupe
America/Guatemala
America/Guayaquil
America/Guyana
America/Halifax
America/Havana
America/Hermosillo
America/Indiana/Indianapolis
America/Indiana/Knox
America/Indiana/Marengo
America/Indiana/Petersburg
America/Indiana/Tell_City
America/Indiana/Vevay
America/Indiana/Vincennes
America/Indiana/Winamac
America/Inuvik
America/Iqaluit
America/Jamaica
America/Juneau
America/Kentucky/Louisville
America/Kentucky/Monticello
America/Kralendijk
America/La_Paz
America/Lima
America/Los_Angeles
America/Lower_Princes
America/Maceio
America/Managua
America/Manaus
America/Marigot
America/Martinique
America/Matamoros
America/Mazatlan
America/Menominee
America/Merida
America/Metlakatla
America/Mexico_City
America/Miquelon
America/Moncton
America/Monterrey
America/Montevideo
America/Montserrat
America/Nassau
America/New_York
America/Nipigon
America/Nome
America/Noronha
America/North_Dakota/Beulah
America/North_Dakota/Center
America/North_Dakota/New_Salem
America/Nuuk
America/Ojinaga
America/Panama
America/Pangnirtung
America/Paramaribo
America/Phoenix
America/Port-au-Prince
America/Port_of_Spain
America/Porto_Velho
America/Puerto_Rico
America/Punta_Arenas
America/Rainy_River
America/Rankin_Inlet
America/Recife
America/Regina
America/Resolute
America/Rio_Branco
America/Santarem
America/Santiago
America/Santo_Domingo
America/Sao_Paulo
America/Scoresbysund
America/Sitka
America/St_Barthelemy
America/St_Johns
America/St_Kitts
America/St_Lucia
America/St_Thomas
America/St_Vincent
America/Swift_Current
America/Tegucigalpa
America/Thule
America/Thunder_Bay
America/Tijuana
America/Toronto
America/Tortola
America/Vancouver
America/Whitehorse
America/Winnipeg
America/Yakutat
America/Yellowknife
Antarctica/Casey
Antarctica/Davis
Antarctica/DumontDUrville
Antarctica/Macquarie
Antarctica/Mawson
Antarctica/McMurdo
Antarctica/Palmer
Antarctica/Rothera
Antarctica/Syowa
Antarctica/Troll
Antarctica/Vostok
Arctic/Longyearbyen
Asia/Aden
Asia/Almaty
Asia/Amman
Asia/Anadyr
Asia/Aqtau
Asia/Aqtobe
Asia/Ashgabat
Asia/Atyrau
Asia/Baghdad
Asia/Bahrain
Asia/Baku
Asia/Bangkok
Asia/Barnaul
Asia/Beirut
Asia/Bishkek
Asia/Brunei
Asia/Chita
Asia/Choibalsan
Asia/Colombo
Asia/Damascus
Asia/Dhaka
Asia/Dili
Asia/Dubai
Asia/Dushanbe
Asia/Famagusta
Asia/Gaza
Asia/Hebron
Asia/Ho_Chi_Minh
Asia/Hong_Kong
Asia/Hovd
Asia/Irkutsk
Asia/Jakarta
Asia/Jayapura
Asia/Jerusalem
Asia/Kabul
Asia/Kamchatka
Asia/Karachi
Asia/Kathmandu
Asia/Khandyga
Asia/Kolkata
Asia/Krasnoyarsk
Asia/Kuala_Lumpur
Asia/Kuching
Asia/Kuwait
Asia/Macau
Asia/Magadan
Asia/Makassar
Asia/Manila
Asia/Muscat
Asia/Nicosia
Asia/Novokuznetsk
Asia/Novosibirsk
Asia/Omsk
Asia/Oral
Asia/Phnom_Penh
Asia/Pontianak
Asia/Pyongyang
Asia/Qatar
Asia/Qostanay
Asia/Qyzylorda
Asia/Riyadh
Asia/Sakhalin
Asia/Samarkand
Asia/Seoul
Asia/Shanghai
Asia/Singapore
Asia/Srednekolymsk
Asia/Taipei
Asia/Tashkent
Asia/Tbilisi
Asia/Tehran
Asia/Thimphu
Asia/Tokyo
Asia/Tomsk
Asia/Ulaanbaatar
Asia/Urumqi
Asia/Ust-Nera
Asia/Vientiane
Asia/Vladivostok
Asia/Yakutsk
Asia/Yangon
Asia/Yekaterinburg
Asia/Yerevan
Atlantic/Azores
Atlantic/Bermuda
Atlantic/Canary
Atlantic/Cape_Verde
Atlantic/Faroe
Atlantic/Madeira
Atlantic/Reykjavik
Atlantic/South_Georgia
Atlantic/St_Helena
Atlantic/Stanley
Australia/Adelaide
Australia/Brisbane
Australia/Broken_Hill
Australia/Darwin
Australia/Eucla
Australia/Hobart
Australia/Lindeman
Australia/Lord_Howe
Australia/Melbourne
Australia/Perth
Australia/Sydney
Canada/Atlantic
Canada/Central
Canada/Eastern
Canada/Mountain
Canada/Newfoundland
Canada/Pacific
Europe/Amsterdam
Europe/Andorra
Europe/Astrakhan
Europe/Athens
Europe/Belgrade
Europe/Berlin
Europe/Bratislava
Europe/Brussels
Europe/Bucharest
Europe/Budapest
Europe/Busingen
Europe/Chisinau
Europe/Copenhagen
Europe/Dublin
Europe/Gibraltar
Europe/Guernsey
Europe/Helsinki
Europe/Isle_of_Man
Europe/Istanbul
Europe/Jersey
Europe/Kaliningrad
Europe/Kiev
Europe/Kirov
Europe/Lisbon
Europe/Ljubljana
Europe/London
Europe/Luxembourg
Europe/Madrid
Europe/Malta
Europe/Mariehamn
Europe/Minsk
Europe/Monaco
Europe/Moscow
Europe/Oslo
Europe/Paris
Europe/Podgorica
Europe/Prague
Europe/Riga
Europe/Rome
Europe/Samara
Europe/San_Marino
Europe/Sarajevo
Europe/Saratov
Europe/Simferopol
Europe/Skopje
Europe/Sofia
Europe/Stockholm
Europe/Tallinn
Europe/Tirane
Europe/Ulyanovsk
Europe/Uzhgorod
Europe/Vaduz
Europe/Vatican
Europe/Vienna
Europe/Vilnius
Europe/Volgograd
Europe/Warsaw
Europe/Zagreb
Europe/Zaporozhye
Europe/Zurich
GMT
Indian/Antananarivo
Indian/Chagos
Indian/Christmas
Indian/Cocos
Indian/Comoro
Indian/Kerguelen
Indian/Mahe
Indian/Maldives
Indian/Mauritius
Indian/Mayotte
Indian/Reunion
Pacific/Apia
Pacific/Auckland
Pacific/Bougainville
Pacific/Chatham
Pacific/Chuuk
Pacific/Easter
Pacific/Efate
Pacific/Fakaofo
Pacific/Fiji
Pacific/Funafuti
Pacific/Galapagos
Pacific/Gambier
Pacific/Guadalcanal
Pacific/Guam
Pacific/Honolulu
Pacific/Kanton
Pacific/Kiritimati
Pacific/Kosrae
Pacific/Kwajalein
Pacific/Majuro
Pacific/Marquesas
Pacific/Midway
Pacific/Nauru
Pacific/Niue
Pacific/Norfolk
Pacific/Noumea
Pacific/Pago_Pago
Pacific/Palau
Pacific/Pitcairn
Pacific/Pohnpei
Pacific/Port_Moresby
Pacific/Rarotonga
Pacific/Saipan
Pacific/Tahiti
Pacific/Tarawa
Pacific/Tongatapu
Pacific/Wake
Pacific/Wallis
US/Alaska
US/Arizona
US/Central
US/Eastern
US/Hawaii
US/Mountain
US/Pacific
UTC
Save
Europe/Berlin
English (United States)
English (United Kingdom)
English (United States)
Español (España)
Français (France)
Polski (Polska)
Português (Brasil)
Türkçe (Türkiye)
Монгол (Монгол)
Українська (Україна)
中文 (中国)
Login
Science Week 2014
from
Monday, December 1, 2014 (9:00 AM)
to
Thursday, December 4, 2014 (6:00 PM)
Monday, December 1, 2014
9:00 AM
Opening
-
Stephan Paul
Andreas Burkert
Opening
Stephan Paul
Andreas Burkert
9:00 AM - 9:10 AM
Room: Large Seminar room E.0.11
9:10 AM
Discovery of a new meson made from light quarks
-
Boris Grube
(TUM)
Discovery of a new meson made from light quarks
Boris Grube
(TUM)
9:10 AM - 9:40 AM
Room: Large Seminar room E.0.11
COMPASS is a multi-purpose fixed-target experiment at the CERN Super Proton Synchrotron. It is aimed at studying the spectrum of hadrons using high-intensity hadron beams with energies of 190 GeV. One main goal is the search for new hadronic states. These states may have exotic properties interpreted as multi-quark configurations (e.g. molecule-like objects), excited gluonic field configurations (hybrids), or even purely gluonic bound states (glueballs). COMPASS has acquired large data sets using positive and negative hadron beams on various targets. The presentation of the first results from the analysis of these data sets focuses in particular on the finding of a possible new light-quark resonance with surprising properties.
9:40 AM
Search for R-parity violating supersymmetry at LHC
-
Max Goblirsch-Kolb
(MPP)
Search for R-parity violating supersymmetry at LHC
Max Goblirsch-Kolb
(MPP)
9:40 AM - 10:10 AM
Room: Large Seminar room E.0.11
With the discovery of a light Higgs boson, the question of whether TeV-scale supersymmetry (SUSY) could solve the little hierarchy problem is more relevant than ever. This talk will provide an overview of searches by the ATLAS collaboration for SUSY in the case that R-parity is violated (RPV SUSY). In this case, the lightest supersymmetric particle (LSP) decays to standard model particles, either promptly or with a finite lifetime. For this reason, such scenarios could evade conventional searches that rely on a signature of large missing transverse momentum from a stable LSP. To recover sensitivity in this case, dedicated searches for events with high lepton and jet multiplicities are performed, as well as searches for new metastable particles. It is shown that the data collected by ATLAS in 2012 can strongly constrain a wide variety of RPV SUSY scenarios.
10:10 AM
Cosmology on a cosmic ring
-
Robert Schneider
(LMU)
Cosmology on a cosmic ring
Robert Schneider
(LMU)
10:10 AM - 10:40 AM
Room: Large Seminar room E.0.11
We derive the modified Friedmann equations for a generalization of the DGP model, in which the brane has one additional compact dimension. The main new feature is the emission of gravitational waves into the bulk. If the compact dimension is stabilized, these waves vanish and one recovers DGP cosmology. However, a stabilization by means of physical matter is not possible for a tension-dominated brane, implying a late time modification of 4D cosmology different from DGP. For a freely expanding compact direction, we find attractor solutions with zero 4D Hubble parameter despite the presence of a 4D cosmological constant. The model hence constitutes an example of dynamical degravitation at the full nonlinear level. Without stabilization, however, there is no 4D regime and the model is ruled out observationally., as we demonstrate explicitly by comparing to supernova data.
10:40 AM
Coffee break
Coffee break
10:40 AM - 11:10 AM
Room: Large Seminar room E.0.11
11:10 AM
Dilepton measurements at the LHC: the thermometer of the quark gluon plasma
-
Torsten Dahms
(TUM)
Dilepton measurements at the LHC: the thermometer of the quark gluon plasma
Torsten Dahms
(TUM)
11:10 AM - 11:45 AM
Room: Large Seminar room E.0.11
The goal of ultra-relativistic heavy-ion collisions at the LHC is to study the properties of the quark-gluon plasma (QGP), a phase of matter with partonic degrees of freedom. Electromagnetic radiation, in form of photons or lepton pairs, is a penetrating probe that allows the investigation of the full time evolution and dynamics of the produced matter, as it does not undergo strong interaction in the final state. The dilepton spectrum is extremely rich in physics sources: Thermal black-body radiation is of particular interest as it carries information about the QGP temperature. Modification of the spectral function of light vector mesons are linked to the potential restoration of chiral symmetry in the QGP phase. Correlated lepton pairs from semi-leptonic charm and beauty decays provide additional information about the heavy-quark energy loss. Furthermore, the suppression pattern of quarkonium states with different binding energies in a QGP gives access to an independent temperature measurement. In this talk, results on quarkonium suppression and low-mass dilepton measurements at RHIC and the LHC will be reviewed. Finally, an outlook for low-mass dilepton measurements with the ALICE experiment at the LHC will be given.
11:45 AM
Lunch break
Lunch break
11:45 AM - 2:00 PM
Room: Large Seminar room E.0.11
2:00 PM
Results and issues of Higgs physics
-
Federico Sforza
(MPP)
Results and issues of Higgs physics
Federico Sforza
(MPP)
2:00 PM - 2:30 PM
Room: Large Seminar room E.0.11
A summary of the LHC experimental results about the Higgs boson will be presented: from the 2012 discovery of a new "Higgs-like" particle to the most recent measurements of its properties with the full Run-I dataset. The potential and the timeline of the next LHC data-taking period, in 2015 and beyond, will also be discussed.
2:30 PM
Coffee break
Coffee break
2:30 PM - 2:45 PM
Room: Large Seminar room E.0.11
2:45 PM
PANSTARRS-M31 Cepheids: NIR-period luminosity relation and impact on H0 estimates
-
Mihael Kodric
(USM)
PANSTARRS-M31 Cepheids: NIR-period luminosity relation and impact on H0 estimates
Mihael Kodric
(USM)
2:45 PM - 3:00 PM
Room: Large Seminar room E.0.11
We obtained the currently largest near-infrared Cepheid sample in the Andromeda Galaxy (M31). Despite of having random phased observations, the obtained period-luminosity relations (PLRs) have a very small dispersion. This remarkably small dispersion allows us to show that the PLRs are significantly better described by a broken slope at ten days than a linear slope. The Riess et al. (2012) M31 Cepheid sample is a subsample of our data, but our data gives a different PLR zero point if the same slope is used for both samples. That leads to an 3.2% larger Hubble constant H0 for our data. This result shows that sample selection influences the H0 estimation and begs the question how close we are to the 1% goal of determining H0.
3:00 PM
Dynamical modelling of the Galactic Bulge: Mass and initial-mass function
-
Matthieu Portail
(MPE)
Dynamical modelling of the Galactic Bulge: Mass and initial-mass function
Matthieu Portail
(MPE)
3:00 PM - 3:15 PM
Room: Large Seminar room E.0.11
We construct Made-to-Measure dynamical models of the Milky Way's Box/Peanut bulge from the recently measured 3D density of Red Clump Giants (Wegg & Gerhard 2013) and the BRAVA kinematics. Starting from N-body models for barred disks in different dark matter halos we determine the total mass (stellar + dark matter) in the bulge region to be 1.84 10^10 Msun with unprecedented accuracy. We evaluate the mass-to-light and mass-to-clump ratios in the bulge and compare them to theoretical predictions from population synthesis models. We find a consistence with a Kroupa or Chabrier IMF and rule out the Salpeter IMF. To match predictions from the Zoccali IMF derived from the bulge stellar luminosity function requires 40% of dark matter in the bulge region.
3:15 PM
The complex evolution of the galaxy star formation activity
-
Paola Popesso
(TUM)
The complex evolution of the galaxy star formation activity
Paola Popesso
(TUM)
3:15 PM - 3:45 PM
Room: Large Seminar room E.0.11
The evolution of the star formation activity and, thus, the assembly of the stellar content of galaxies remain at the heart of galaxy evolution studies. It is now rather well established that most galaxies form stars at a “normal” level, dictated mainly by their stellar mass and regulated by secular processes. This is seen as a main sequence (MS) in the star formation rate(SFR)-stellar mass plane. The normalization of this sequence declines with time since z~2. However, we do not yet fully understand the processes that control this evolution, nor how individual galaxies evolve relative to it. While the existence of a MS may seem to suggest a simple and universal mode of star formation in galaxies (on average), the deviations indicate a more complex relation between galaxy SFRs, gas reservoir, external and internal mechanisms triggering or halting star formation. In this context Paola will discuss in particular the role of the "environment quenching" as the main external mechanism able to suppress the galaxy star formation activity.
3:45 PM
Supernova SN2014J - deeper insights by gamma-rays
-
Thomas Siegert
(MPE)
Supernova SN2014J - deeper insights by gamma-rays
Thomas Siegert
(MPE)
3:45 PM - 4:15 PM
Room: Large Seminar room E.0.11
On 21 Jan. 2014, SN2014J was discovered in M82 and found to be the closest type Ia supernova (SN Ia) in the last 4 decades. INTEGRAL started to observe 14J in the end of January and pointed to it until late June. SNe Ia lightcurves are powered by the radioactive decay of iron peak elements of which 56Ni is dominantly synthesized. Canonical models see 56Ni buried deeply in the SN cloud, absorbing most of the early gamma-rays. Only the consecutive decay of 56Co should be observable several months after the explosion. Nontheless, INTEGRAL detected 56Ni gamma-ray lines shortly after the explosion and also provided a first gamma-ray lightcurve from the 56Co decay. We will discuss deeper insights about the explosion morphology from the temporal evolution of 56Ni decay chain gamma-rays.
5:15 PM
Dark matter and galaxy formation
-
Francoise Combes
(Observatoire de Paris, LERMA)
Dark matter and galaxy formation
Francoise Combes
(Observatoire de Paris, LERMA)
5:15 PM - 6:30 PM
Room: Hörsaal H 030, Schellingstraße 4, München
Tuesday, December 2, 2014
9:00 AM
C2PAP Computing Cluster
-
Aliaksei Krukau
(LRZ)
C2PAP Computing Cluster
Aliaksei Krukau
(LRZ)
9:00 AM - 9:30 AM
Room: Large Seminar room E.0.11
We provide an overview of the usage of the C2PAP compute cluster in the past year, highlighting several newly available features such as the high bandwidth connection to the SuperMUC GPFS, a fat node that is available to support web portals, and a preempt queue that allows for filler jobs when the cluster is underutilized that are immediately killed when new jobs appear in the queue. We also sketch the development work done to set up a job submission portal for the computer cluster.
9:30 AM
C2PAP staff your friend and helper
-
Frederik Beaujean
(LMU)
C2PAP staff your friend and helper
Frederik Beaujean
(LMU)
9:30 AM - 10:00 AM
Room: Large Seminar room E.0.11
Fred will give an overview over a selected number of projects supported by the C2PAP staff members in 2014. This should give an impression of the kinds of services offered, and could spur new ideas for projects in 2015.
10:00 AM
Lattice QCD at finite temperature using C2PAP
-
Johannes Weber
(TUM)
Lattice QCD at finite temperature using C2PAP
Johannes Weber
(TUM)
10:00 AM - 10:15 AM
Room: Large Seminar room E.0.11
We study static quark correlators at finite temperature in lattice QCD with 2+1 flavours of highly improved staggered fermions with physical masses in simulations using C2PAP. We discuss the requirements for lattice QCD simulations and summarise our experiences in running large parallel jobs on C2PAP using the MILC code for lattice QCD. We show our main results and present an outlook on the goals for an extension of the project into 2015.
10:15 AM
A first look at galaxy populations with SPT and DES
-
Christina Hennig
(LMU)
A first look at galaxy populations with SPT and DES
Christina Hennig
(LMU)
10:15 AM - 10:30 AM
Room: Large Seminar room E.0.11
10:30 AM
Coffee break
Coffee break
10:30 AM - 11:00 AM
Room: Large Seminar room E.0.11
11:00 AM
Universe PhD Awards 2014: Prize-giving ceremony
Universe PhD Awards 2014: Prize-giving ceremony
11:00 AM - 11:45 AM
Room: Large Seminar room E.0.11
11:45 AM
Lunch break
Lunch break
11:45 AM - 1:30 PM
Room: Large Seminar room E.0.11
1:30 PM
Black holes as quantum bound states
-
Tehseen Rug
(LMU)
Black holes as quantum bound states
Tehseen Rug
(LMU)
1:30 PM - 2:00 PM
Room: Large Seminar room E.0.11
We suggest a new approach to solve various puzzles arising in quantum field theory in curved spacetime. In this approach we view Minkowski spacetime as the only fundamental vacuum. Any other background should be resolved as quantum bound state of gravitons. Classical results, in particular the notion of spacetime geometry, are recovered in the limit of an infinite constituent number. For a finite number of gravitons, we find corrections to semi-classical expectations. We argue that these corrections could be the key for solving all black hole mysteries. Using methods inspired by non-perturbative QCD, we compute observables such as the particle density and energy density inside a black hole. This leads to simple scaling relations between the mass and total particle number. Furthermore, we show how these observables can be embedded naturally in scattering processes. Thus, the information about the internal structure of a black hole is at least in principle accessible to an observer outside the black hole. We conclude with a short summary and give an outlook for future research.
2:00 PM
Electroweak SUSY searches: the LHC and beyond
-
Aoife Bharucha
(TUM)
Electroweak SUSY searches: the LHC and beyond
Aoife Bharucha
(TUM)
2:00 PM - 2:30 PM
Room: Large Seminar room E.0.11
The LHC has been tremendously successful in pushing the limits on SUSY particle (sparticle) masses towards the TeV scale, particularly for coloured sparticles. As the production of electroweak sparticles (electroweakinos) is suppressed, the LHC is in principle less sensitive to them. However, as the bounds on the coloured sector become stronger, these channels become increasingly interesting. Moreover, constraints on the SUSY electroweak sector are particularly important for the study of dark matter (DM), as the lightest neutralino is a potential DM candidate. Aoife will review the limits on electroweak particles from the LHC, concentrating on chargino-neutralino production the limits on which require careful interpretation, and the relation of monojet searches to dark matter experiments. She will further discuss how the current limits will be improved by the LHC at 14 TeV and future colliders.
2:30 PM
Near-infrared light curves of type Ia supernovae: Studying properties of the second maximum
-
Suhail Dhawan
(ESO)
Near-infrared light curves of type Ia supernovae: Studying properties of the second maximum
Suhail Dhawan
(ESO)
2:30 PM - 3:00 PM
Room: Large Seminar room E.0.11
Type Ia supernovae have been proposed as much better distance indicators at near-infrared compared to optical wavelengths – the e ect of dust extinction is expected to be lower and it has been shown that SNe Ia behave more like ‘standard candles’ at near-infrared wavelengths. To better understand the physical processes behind this increased uniformity, we have studied the Y, J and H -filter light curves of 91 SNe Ia from the literature.We show that the phases and luminosities of the first maximum in the near-infrared light curves are extremely uniform for our sample. The phase of the second maximum, the late-phase near-infrared luminosity and the optical light curve shape are found to be strongly correlated, in particular more luminous SNe Ia reach the second maximum in the near-infrared filters at a later phase compared to fainter objects. The decline rate after the second maximum is very uniform in all near-infrared filters. We also find a strong correlation between the phase of the second maximum and the epoch at which the SN enters the lira law phase in its optical colour curve (referred to a tL). We suggest that these observational parameters are linked to the nickel and iron mass in the explosion, providing evidence that the amount of nickel synthesised in the explosion is the dominating factor shaping the optical and near-infrared appearance of SNe Ia.
3:00 PM
Coffee break
Coffee break
3:00 PM - 3:30 PM
Room: Large Seminar room E.0.11
3:30 PM
First solar pp neutrino measurement with Borexino
-
Lothar Oberauer
(TUM)
First solar pp neutrino measurement with Borexino
Lothar Oberauer
(TUM)
3:30 PM - 4:00 PM
Room: Large Seminar room E.0.11
For the first time, the Borexino experiment in the Gran Sasso National Laboratory directly detected neutrinos which are emitted by the thermo-nuclear fusion process of two protons in the Sun (nature, issue Sep 2014). Lothar will report on background identification and suppression which was necessary for this measurement. The results are compared with the expected neutrino fluxes and the actual values of neutrino oscillation parameters. Finally, future aspects of Borexino will be discussed.
4:00 PM
Direct dark matter search with the CRESST experiment
-
Jean-Come Lanfranchi
(TUM)
Direct dark matter search with the CRESST experiment
Jean-Come Lanfranchi
(TUM)
4:00 PM - 4:30 PM
Room: Large Seminar room E.0.11
The CRESST-II (Cryogenic Rare Event Search with Superconducting Thermometers) dark matter search aims at the direct detection of WIMPs (Weakly Interacting Massive Particles) via elastic scattering off nuclei in CaWO4 crystals operated as low-temperature detectors. In a previous measuring campaign from 2009 to 2011 an excess of events over background possibly induced by low-mass WIMPs was recorded. Since this result along with similar indications by other direct searches has generated a tension between experiments with null result (e.g., XENON or LUX), CRESST has started a new data taking campaign in May 2013 with the goal to clarify the situation. In this run a newly developed fully scintillating detector design using CaWO4 crystals produced in Garching has been employed for the first time. Preliminary results of this data taking campaign allow already to set a limit on spin-independent WIMP-nucleon scattering which probes a new region of parameter space for WIMP masses below 3 GeV/c2, previously not covered by any direct detection search. In addition, the previously seen excess over background has not been confirmed.
4:30 PM
eROSITA: A global view of the hot Universe
-
Andrea Merloni
(MPE)
eROSITA: A global view of the hot Universe
Andrea Merloni
(MPE)
4:30 PM - 5:00 PM
Room: Large Seminar room E.0.11
eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the core instrument on the Russian Spektrum-Roentgen-Gamma (SRG) mission which is current scheduled for launch in 2016. eROSITA will perform a deep survey of the entire X-ray sky. In the soft band (0.5-2 keV), it will be about 30 times more sensitive than ROSAT, while in the hard band (2-8 keV) it will provide the first ever true imaging survey of the sky. The design driving science is the detection of large samples of galaxy clusters, in order to study the large scale structure in the Universe and test cosmological models including Dark Energy. In addition, eROSITA is expected to yield a sample of around 3 million active galactic nuclei, which is bound to revolutionize our view of the evolution of supermassive black holes and their impact on the process of structure formation in the Universe. The survey will also provide new insights into a wide range of astrophysical phenomena, including isolated Neutron Stars and Black Holes, X-ray binaries, active stars and diffuse emission within the Galaxy, as well as more exotic ones such as gamma-ray bursts, tidal disruption of stars in galactic nuclei and binary black holes. In this talk I will review the current mission status and discuss the major scientific goals of the project.
5:00 PM
Effective theory for new physics in the Higgs sector
-
Oscar Cata
(LMU)
Effective theory for new physics in the Higgs sector
Oscar Cata
(LMU)
5:00 PM - 5:30 PM
Room: Large Seminar room E.0.11
The discovery of the Higgs boson at the LHC strongly validates the Standard Model as the low-energy theory of the electroweak interactions. However, the nature of the mechanism triggering electroweak symmetry breaking (EWSB) remains unresolved, all the more so since no traces of new physics have been detected so far. In this talk Oscar will discuss the possibility that EWSB is driven by a strongly-coupled new physics sector, and how this would manifest itself at low energies. In particular, he will cover in considerable detail the systematics (and subtleties) of the EFT associated with these scenarios. As applications, Oscar will discuss gauge-boson pair production and h -> Z e+e- up to next leading order.
5:30 PM
Lattice calculation of static quark correlators at finite temperature
-
Johannes Weber
(TUM)
Lattice calculation of static quark correlators at finite temperature
Johannes Weber
(TUM)
5:30 PM - 6:00 PM
Room: Large Seminar room E.0.11
We compute static quark correlators in lattice QCD and study the free energy of static quarks in the thermal medium. We use state-of-the-art simulations with 2+1 flavours of highly improved staggered fermions with physical quark masses. We calculate the thermal modification of the potential, the range-dependent effective coupling and the electric screening mass. Our results are in good agreement with predictions from perturbation theory at short distances.
6:00 PM
6:00 PM - 8:00 PM
Room: Large Seminar room E.0.11
Wednesday, December 3, 2014
9:00 AM
Searches for heavy long-lived charged particles at LHC
-
Sascha Mehlhase
(LMU)
Searches for heavy long-lived charged particles at LHC
Sascha Mehlhase
(LMU)
9:00 AM - 9:30 AM
Room: Large Seminar room E.0.11
A short review of the theoretical motivations for searches for stable massive particles along with an overview on the experimental status will be given. As an example, a search for heavy long-lived charged particles with the ATLAS detector will be highlighted and latest results presented.
9:30 AM
Riddles in the dark, answers in the light: Type Ia supernovae progenitors and high-resolution-spectroscopy
-
Assaf Sternberg
(TUM)
Riddles in the dark, answers in the light: Type Ia supernovae progenitors and high-resolution-spectroscopy
Assaf Sternberg
(TUM)
9:30 AM - 10:00 AM
Room: Large Seminar room E.0.11
Type Ia supernovae are very luminous transients that are used as cosmological standard candles for measuring distances on a cosmic scale. It is widely accepted that they are the thermonuclear explosion of carbon-oxygen white-dwarf stars in close binary system. Despite numerous studies, the nature of the companion star remains uncertain and under much debate. A main discriminant between the proposed progenitor models is the predicted circumstellar environment in which the white-dwarfs are embedded at the time of their explosion. Therefore, studying the circumstellar environment of type Ia supernovae can help us validate which progenitor channel, or channels, can lead to these brilliant events. High-resolution spectroscopy is currently the most promising method with which one can probe the circumstellar material on the line-of-sight to a type Ia supernova, using the supernova as a back-light. In this talk Assaf will present an overview of the high-spectral-resolution studies that have been performed in recent years, what we have learned from them, and what we can do in the future to get us closer to solving the long standing type Ia supernova progenitor mystery.
10:00 AM
Search for supernova-ejected radionuclides in terrestrial and lunar reservoirs
-
Peter Ludwig
(TUM)
Search for supernova-ejected radionuclides in terrestrial and lunar reservoirs
Peter Ludwig
(TUM)
10:00 AM - 10:30 AM
Room: Large Seminar room E.0.11
Supernova explosions eject copious amounts of material into the interstellar medium. It is possible that supernova ejecta are incorporated into solar system reservoirs. The method of choice for the search for such a signature is accelerator mass spectrometry (AMS), since it allows for the detection of minute concentrations of long-lived radioisotopes such as 53Mn and 60Fe. For searches on Earth, especially 60Fe is especially well suited, since it has only very low terrestrial background. Results from two studies will be presented: The first part will focus on a search for 60Fe in Pacific Ocean marine sediment. A newly developed chemical extraction method was used to target specifically magnetofossils, chains of magnetite crystals produced by magnetotactic bacteria, preventing signal dilution. The advantage of using slow-growing sediments is the preservation of the temporal signature of possible supernova deposition. In the second part, results from a study of 53Mn and 60Fe in lunar samples will be presented. For this purpose, samples from the missions Apollo 12, 15, and 16 were analyzed, in combination with a set of meteoritic samples to estimate background due to galactic cosmic rays. Although the lunar surface does not provide a time-resolved signal due to the lack of sedimentation, one of the big advantages is the possibility to determine the local interstellar fluence of 60Fe at the time of deposition. All measurements were preformed at the AMS facility GAMS at the Maier-Leibnitz-Laboratory in Garching.
10:30 AM
Coffee break
Coffee break
10:30 AM - 11:00 AM
Room: Large Seminar room E.0.11
11:00 AM
Recent highlights in quark flavour physics
-
Jennifer Girrbach-Noe
(TUM-IAS)
Recent highlights in quark flavour physics
Jennifer Girrbach-Noe
(TUM-IAS)
11:00 AM - 11:30 AM
Room: Large Seminar room E.0.11
Flavour physics is a very powerful tool to test the Standard Model of particle physics (SM) and to search for new physics (NP). It can probe very short distance scales that are beyond the direct reach of the LHC without directly producing new heavy particles. In this talk Jennifer will first give a short introduction to flavour physics and then outline a strategy how to find NP with the help of flavour physics. Correlations between certain observables in different NP models play here a key role. With its rich phenomenology the flavour sector can help us to disentangle different models beyond the SM. This is demonstrated with some concrete examples, like correlations between B_{s,d} --> \mu^+\mu^-, B\to K^{(*)}\ell^+\ell^-$ and $B\to K^{(*)}\nu\bar\nu$. The question what is the highest resolution that we can get with flavour physics is also addressed.
11:30 AM
Search for sterile neutrinos with SOX
-
Matteo Agostini
(TUM)
Search for sterile neutrinos with SOX
Matteo Agostini
(TUM)
11:30 AM - 11:45 AM
Room: Large Seminar room E.0.11
The SOX project aims at conclusively probing the existence of eV-scale sterile neutrinos, which is hinted at by experiments with neutrinos from accelerators (LSND and MiniBoone), radioactive sources (Gallex and SAGE), and reactors (reactor-anomaly). An anti-neutrino source (Ce-144, 100 kCi) will be placed underneath the Borexino detector to perform a background-free measurement of the anti-neutrino interaction rate. The sought-after signature of sterile neutrinos is an oscillatory pattern in the rate as a function of the neutrino energy and travelled distance. The data taking will start in the fall of 2015 and the final results will be extracted after 1.5 years of operations.
11:45 AM
Lunch break
Lunch break
11:45 AM - 1:30 PM
Room: Large Seminar room E.0.11
1:30 PM
Highlight talk: Where are we going?
-
John Ellis
(CERN)
Highlight talk: Where are we going?
John Ellis
(CERN)
1:30 PM - 2:30 PM
Room: Large Seminar room E.0.11
The discovery of a Higgs boson at the LHC raises (almost) as many questions as it answers. Is it an elementary particle, or composite? Are there other Higgs bosons? Is the vacuum stable? Are there other particles at the TeV scale waiting to be discovered at the LHC or in dark matter experiments? This talk will answer none of these questions.
2:30 PM
2:30 PM - 6:00 PM
Room: Large Seminar room E.0.11
Thursday, December 4, 2014
9:00 AM
Overview Research Area A
-
Ilka Brunner
(LMU)
Overview Research Area A
Ilka Brunner
(LMU)
9:00 AM - 9:45 AM
Room: Large Seminar room E.0.11
9:45 AM
Overview Research Area B
-
Dorothee Schaile
(LMU)
Wolfgang Hollik
(MPP)
Overview Research Area B
Dorothee Schaile
(LMU)
Wolfgang Hollik
(MPP)
9:45 AM - 10:30 AM
Room: Large Seminar room E.0.11
10:30 AM
Coffee break
Coffee break
10:30 AM - 11:00 AM
Room: Large Seminar room E.0.11
11:00 AM
Overview Research Area E
-
Hans Boehringer
(MPE)
Overview Research Area E
Hans Boehringer
(MPE)
11:00 AM - 11:45 AM
Room: Large Seminar room E.0.11
11:45 AM
Lunch break
Lunch break
11:45 AM - 1:30 PM
Room: Large Seminar room E.0.11
1:30 PM
Overview Research Area D
-
Siegfried Bethke
(MPP)
Overview Research Area D
Siegfried Bethke
(MPP)
1:30 PM - 2:15 PM
Room: Large Seminar room E.0.11
2:15 PM
Overview Research Area C
-
Elisa Resconi
(TUM)
Overview Research Area C
Elisa Resconi
(TUM)
2:15 PM - 3:00 PM
Room: Large Seminar room E.0.11
3:00 PM
Coffee break
Coffee break
3:00 PM - 3:10 PM
Room: Large Seminar room E.0.11
3:10 PM
Overview Research Area I: C2PAP
-
Joseph Mohr
(LMU)
Overview Research Area I: C2PAP
Joseph Mohr
(LMU)
3:10 PM - 3:40 PM
Room: Large Seminar room E.0.11
3:40 PM
Overview Research Area G
-
Roland Diehl
(MPE)
Overview Research Area G
Roland Diehl
(MPE)
3:40 PM - 4:25 PM
Room: Large Seminar room E.0.11
4:25 PM
4:25 PM - 4:30 PM
Room: Large Seminar room E.0.11