Satellite workshop on symmetries in light and heavy flavour

Contribution List

12. Welcome / Introduction

07/11/2016, 11:15

Session 1

0. Properties of bound electrons and muons

Andrzej Czarnecki (U. Alberta)

07/11/2016, 11:30

Session 1

The mass of the electron is best determined with hydrogen-like ions in a Penning trap. Binding in an ion removes the error due to the thermal motion of the electron. However, the price is that some properties of the electron are modified by the binding. These changes can be computed in QED but there are interesting complications. We present recent progress in the determination of the g-factor...

9. Probing Gravity with Ultracold Neutrons in the qBounce Experiment

Dr Mario Pitschmann (TU Wien)

07/11/2016, 13:30

Session 2

The qBounce experiment will be presented: ultracold neutrons fall in the gravity potential of the earth and are re ected from a mirror. As a bound quantum system, the neutrons have discrete energy eigenstates and are found in a coherent superposition of particular levels. The lowest discrete states are in the range of several pico-eVs. This opens the way to probe theories of gravitational...

2. Correlations in neutron beta decay

Prof. Bastian Märkisch (TUM)

07/11/2016, 14:00

Session 2

In the upcoming years next generation experiments on neutron beta decay will provide an increased sensitivity by an order of magnitude or more and will allow to asses previously inaccessible observables. In this talk I will present an overview on observables in neutron beta decay and the measurement principles used. In particular the reach of the new instrument PERC, which is currently under...

1. Model-independent analyses of charged-current (semi)leptonic quark decays

Martín González-Alonso (Lyon Institute of Origins, Institut de Physique Nucléaire de Lyon)

07/11/2016, 14:45

Session 2

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8. Precision Analysis of Electron Energy Spectrum and Angular Distribution of Neutron Beta-Decay with Polarized Neutron and Electron

Prof. Andrey Ivanov (Atominstitut TU Wien)

07/11/2016, 16:00

Session 3

We give a precision analysis of the correlation coefficients of the electron-energy spectrum and angular distribution of the Beta-decay and radiative Beta-decay of the neutron with polarized neutron and electron to order 10^(-3). The calculation of correlation coefficients is carried out within the Standard model with the contributions of order 10^(-3), caused by the ``weak...

15. Symmetry tests with tau lepton

Dr Simon Eidelman (Budker Institute of Nuclear Physics)

07/11/2016, 16:30

Session 3

11. New Physics Searches with Flavor, Both Heavy and Light

Susan Gardner (University of Kentucky)

07/11/2016, 17:00

Session 3

I offer a snapshot summary of the new physics searches possible via precision measurements of heavy meson and neutron decays, emphasizing probes of the violation of discrete symmetries. In some cases the tests in systems of light and heavy flavor are complementary, in others they are disjunct. I consider examples of each class, noting the broader complementary of such work with...

3. Model-independent analyses of new physics in precision experiments

David Straub (TUM)

08/11/2016, 09:00

Session 4

Effective field theory methods allow to analyze the impact of physics beyond the Standard Model on precision observables in low-energy experiments, e.g. flavour physics, in a model-independent way and also allow to correlate effects in different types of experiments. I will discuss the general framework and some examples of current interest, e.g. concerning tensions between B decay...

10. EFT-methods and correlations between various flavor sectors

Dr Christoph Bobeth (TUM)

08/11/2016, 10:00

Session 4

Given a particular UV completion beyond the SM, flavor constraints from various low-energy flavor observables can provide combined powerful constraints on the new physics parameter space, depending on the model at hand. But even with EFT-methods, correlations between various flavor sectors exist due to operator mixing. A particular example from the literature (arXiv:1605.00524) will be...

4. Testing CPT symmetry with (anti-)hydrogen

Prof. Eberhard WIDMANN (Stefan Meyer Institute)

08/11/2016, 11:00

Session 5

The CPT symmetry is one of the cornerstones of the Standard Model of Particle Physics. It's consequence that properties of particles and antiparticles are either exactly equal or exctly opposite is being tested using antihydrogen spectroscopy at the Antiproton Decelerator of CERN. The ASACUSA collaboration is pursuing a meansurement of the ground-state hyperfine splitting GS-HFS of...

13. Connections between Rare decays, mixing, LHCb and Belle 2

Sebastian Jaeger (TUM)

08/11/2016, 11:30

Session 5

14. Enhanced Light Fermion Yukawa couplings

Martin Bauer (Universität Heidelberg)

08/11/2016, 12:00

Session 5

5. EDMs for baryons & leptons

Ikaros Bigi (TUM)

For long time we know that probing EDMs for baryons and leptons give us hunting region, where we have not to worry about background from the SM (except the well-known problem with strong CP violation). The landscape is actually more complex as said before. We have now much more actors in the stage beyond EDM of neutrons and EDM of electrons coming from atoms. On one side we should probe EDMs...

6. Oscillations of n - nbar

Ikaros Bigi (TUM)

At least in the early 1990's we had realized that the SM cannot produce sizable contribution to the huge asymmetry in matter vs. anti-matter known in our Universe; now we known that known matter is only around 4.5 % there. We have to think and follow unusual `roads'. There are three obvious candidates: (i) CP asymmetries in neutrino oscillations; (ii) EDMs of baryons & leptons and - (iii)...