Conveners
Heavy Hadrons: 1
- Alberto Correa dos Reis (Centro Brasileiro de Pesquisas Fisicas)
Heavy Hadrons: 2
- Hal Evans (Indiana Univ.)
Heavy Hadrons: 3
- Christophorus Grab (ETH Zürich)
Heavy Hadrons: 4
- stefano bianco (Laboratori Nazionali di Frascati dell'INFN)
Heavy Hadrons: 5
- Stephan Paul (TU-München)
Description
Spectroscopy and decay of heavy hadrons
Dr
Bastian Kubis
(Universität Bonn)
6/13/11, 2:30 PM
Heavy Hadrons
talk
Dalitz plot studies for multi-hadron decays of heavy mesons are expected to become very important tools for precision investigations of CP violation. A thorough understanding of the hadronic final-state interactions is a prerequisite to achieve a highly sensitive, model-independent study of CP-violating phases in such processes. I will illustrate the theoretical tools available, as well as...
Ms
Patricia Magalhães, C.
(University of São Paulo, Brazil)
6/13/11, 2:55 PM
Heavy Hadrons
talk
The last decade provided important advances on light scalar resonances sector in the D decays. In particular, different analyses showed the evidence for $\sigma$ and $\kappa$ mesons close to the threshold.
Decays of charmed meson, however, are still poorly understood theoretically. The $K^-\pi^+$ phase shift extracted from $D^+\to K^- \pi^+\pi^+$[1] and from $K^-\pi^+$ scattering[2]...
Dr
camilla di donato
(INFN Sez. Napoli)
6/13/11, 3:15 PM
Heavy Hadrons
talk
It has been realized for a long time that knowing the eta and eta^prime wave functions in terms of quark and gluon components probes our understanding of non-perturbative QCD dynamics. Great effort has been given to this challenge -- yet no clear picture has emerged even with the most recent KLOE data. We point out which measurements would be most helpful in arriving at a more definite...
Dr
Carina M. Zanetti
(Instituto de Física, USP)
6/13/11, 3:35 PM
Heavy Hadrons
talk
Abstract: We use QCD sum rules to investigate the nature of the meson X(3872), assumed to be a mixture between charmonium and exotic molecular c bar{q}[q\bar{c}]$ states with J^{PC}=1++. We compute the mass of the state, decay widths of the channels J/psi(npi) and J\psi\gamma, and the branching ratio for the production of the state in the decay B to X(3872)K. We find that the...
Dr
Feng-Kun Guo
(Universität Bonn)
6/13/11, 4:50 PM
Heavy Hadrons
talk
The leading order interaction between a Goldstone boson and a matter field is universally dominated by the Weinberg-Tomozawa term. Based on this observation, we predict a rich spectrum of bound states of a kaon and a heavy meson. We argue that if the life time of an excited heavy meson is significantly longer than the range of forces, then the finite width of that state can be neglected in a...
139.
A new interpretation for the $D^*_{s2}(2573)$ and the prediction of novel exotic charmed mesons
Mrs
Raquel Molina
(IFIC)
6/13/11, 5:10 PM
Heavy Hadrons
talk
We study the vector - vector interaction within the hidden gauge formalism in a coupled channel unitary approach. In the sector $C=1,S=1,J=2$ we get a pole in the T-matrix around $2572$ MeV that we identify with the $D^*_{s2}(2573)$, coupling strongly to the $D^*K^*$($D^*_s\phi$($\omega$)) channels. In addition we obtain resonances in other exotic sectors which have not been studied before...
Dr
Daniel Mohler
(TRIUMF)
6/13/11, 5:30 PM
Heavy Hadrons
talk
We present results for the low-lying spectrum of D and D_s mesons from
a lattice QCD calculation on 2+1 flavor Clover-Wilson configurations
generated by the PACS-CS collaboration. In particular S- and P-wave
states of charmed and charmed-strange mesons are explored for pion
masses down to 156MeV. For the heavy quark, the Fermilab method is
employed. In addition to ground states, some...
Dr
Fergus Wilson
(Rutherford Laboratory)
6/13/11, 5:50 PM
Heavy Hadrons
talk
The large samples of B, D and tau decays that will be recorded
at SuperB can be used to provide both stringent constraints on
new physics scenarios, and overconstraints on the Standard
Model. We discuss the physics potential what can be learned
from SuperB.
Prof.
Dmitri Melikhov
(HEPHY Vienna Austria & SINP Moscow Russia)
6/14/11, 2:30 PM
Heavy Hadrons
talk
We present the sum-rule extraction of the decay constants of the D, Ds, B, and Bs mesons from the two-point correlator of heavy-light pseudoscalar currents. We use the OPE of this correlator in terms of the running heavy-quark mass, for which the perturbative expansion exhibits a reasonable convergence. Our main emphasis is laid on the control over the uncertainties in the decay constants,...
Roberta Cardinale
(INFN - Genova)
6/14/11, 2:50 PM
Heavy Hadrons
talk
Data collected in 2010 at the LHC is used by LHCb to perform the first preliminary mass measurements of b-hadron states fully reconstructed in modes decaying to a J/psi. The systematics on the momentum and mass scales, determined by the level of knowledge and understanding of the tracking system, are addressed. Precise mass measurements for B0, B+, Bs, Bc and Λb are reported. In several cases,...
Dr
Timothy Burns
(INFN Roma)
6/14/11, 3:10 PM
Heavy Hadrons
talk
The recent discovery of the bottomonia states h_b(1P) and h_b(2P)
confirms the expectations of constituent quark models, already verified in the charmonia sector, that the spin-spin splitting of P-wave mesons is very small. The striking agreement is somewhat surprising because the non-relativistic quark model prediction, for which the splitting is identically zero, may be modified due to...
Dr
Kai Schweda
(University of Heidelberg)
6/14/11, 3:30 PM
Heavy Hadrons
talk
Heavy-quarks are, due to their large mass, unique tools to probe the quark
gluon plasma created in high-energy nuclear collisions. In proton-proton
collisions, heavy-quark production comprises a fundamental challenge to
theory and experiment. We report on recent results from the ALICE experiment
on heavy flavour production in $pp$ and $Pb-Pb$ collisions at unprecedented
high...
Paolo Bellan
(Univ. di Padova e Sez. dell'INFN)
6/16/11, 4:30 PM
Heavy Hadrons
talk
Measurements performed by the CMS experiment of the cross section for inclusive b-quark production in proton-proton collisions at sqrt(s) = 7 TeV are presented. The measurements are based on different methods, such as inclusive jet measurements with secondary vertex tagging or selecting a sample of events containing jets and at least one muon, where the transverse momentum of the muon with...
Hans-Christian Kaestli
(Paul Scherrer Institut)
6/16/11, 4:50 PM
Heavy Hadrons
talk
Measurements of the total and single differential cross sections for B+, B0, Bs mesons and Lambda_b baryons produced in pp collisions at sqrt{s}=7 TeV are presented. The results are compared with predictions based on perturbative QCD calculations at leading and next-to-leading order
Christophorus Grab
(ETH Zürich)
6/16/11, 5:10 PM
Heavy Hadrons
talk
A measurement of the angular correlations between beauty and anti-beauty hadrons produced in LHC pp collisions at sqrt{s}=7 TeV is presented, probing for the first time the small angular separation region. The B hadrons are identified by the presence of secondary vertices from their decays and their kinematics reconstructed combining the decay vertex with the primary interaction vertex. The...
Artur Ukleja
(Andrzej Zoltan Institute for Nuclear Studies, Warsaw)
6/16/11, 5:30 PM
Heavy Hadrons
talk
The data collected by LHCb in 2010 have been used to study the production of
charm and beauty hadrons in pp collisions at sqrt(s) = 7 TeV. Differential
cross-sections will be presented and compared with theoretical predictions.
Results will also be shown on production asymmetries, and the relative fractions
of B_s and Lambda_b production. If available, updates will also be shown using
2011 data.
Mr
Jorge Segovia
(Universidad de Salamanca)
6/16/11, 5:50 PM
Heavy Hadrons
talk
Accuracy on the measurement of the Cabbibo - Kobayashi - Maskawa matrix elements demands a detailed knowledge of semileptonic decays of b -hadrons. In particular, decays involving orbitally excited c-mesons provide an important contribution to the total semileptonic width. Therefore, a better understanding of these processes will reduce the uncertainties in the above mentioned matrix elements....
Prof.
Marek Karliner
(Tel Aviv University)
6/17/11, 9:00 AM
Heavy Hadrons
talk
discuss several highly accurate theoretical predictions for masses
of baryons containing the b quark which have been recently confirmed
by experimental data. I point out that proper treatment of the
color-magnetic hyperfine interaction in QCD is crucial for obtaining these
results. Several yet untested predictions are given for additional
properties of heavy baryons. The same approach...
Mr
Chu-Wen XIAO
(Departamento de Fisica Teorica and IFIC, Universidad de Valencia)
6/17/11, 9:30 AM
Heavy Hadrons
talk
In this work, we show our recent theoretical results for three-body systems in the charm sector which are made of three hadrons and contain one nucleon, one D meson and in addition another meson, Dbar, K or Kbar. The Fixed Center Approximation to the Faddeev equations was used, in which we take a cluster of two particles and allow the third one to interact with either of the constituents of...
Carlo Schiavi
(INFN Genova)
6/17/11, 9:50 AM
Heavy Hadrons
talk
ATLAS has studied heavy flavor production and measured the production cross sections of heavy quarkonia, open bottom and charm. Differential cross sections as a function of transverse momentum and pseudorapidity will be presented. ATLAS capabilities to reconstruct heavy quarkonium states, D-mesons and B-hadrons in exclusive decay modes will be demonstrated.
Mr
Joseph Day
(University of Graz)
6/17/11, 10:15 AM
Heavy Hadrons
talk
We report first results from a study of heavy-baryon spectroscopy within a relativistic constituent-quark model whose hyperfine interaction is based on Goldstone-boson-exchange dynamics. While for light-flavor constituent quarks it is now commonly accepted that the effective Q-Q interaction is (predominantly) furnished by Goldstone-boson exchange, due to spontaneous chiral-symmetry breaking of...
Dr
Igor GORELOV
(University of New Mexico, USA)
6/17/11, 10:35 AM
Heavy Hadrons
talk
Using the data collected with the CDF and DZERO detectors running at
the Tevatron the measurements of the charm and bottom hadrons will be
presented. We will talk in details about recent CDF measurements of
heavy baryon properties of charmed Sigma_c and Lambda_c* and of their
bottom partners, Sigma_b. The CDF results on exotic Y(4140) state will
be discussed. The new production...
