Institutsseminar Kern- und Hadronenphysik

Programm für das Wintersemester 2019/2020

Mondays, 14 Uhr c.t.

Ort: Institut für Kernphysik, HS Kernphysik, Becherweg 45

08.10.19Garth Huber, University of Regina, Regina, Saskatchewan, Canada
see attached pdf

Sonderseminar

21.10.19J. Diefenbach, Mainz
Strahlenschutzunterweisung Kernphysik

28.10.19O. Javier Hernandez, Mainz
Nuclear structure corrections in muonic deuterium

04.11.19Laura Moschini, Brüssel
Dissociation of exotic nuclei at high energy

11.11.19Hans Christian Lange, Mainz
We construct a chiral effective Lagrangian for e.-m. transitions between vector and pseudoscalar mesons (PVgamma). Based on an organization scheme in 1/Nc and the quark masses, we fit up to 12 decays and compare the results of our model with the experimental values given in PDG2018. We will extend our framework to the Dalitz decays PVl+l- and compare the calculated decay rates and transition form factors with recent experimental results.

18.11.19Asia Sobczyk, Valencia
Nuclear effects for neutrino oscillation studies

25.11.19Farah Afzal, Bonn
Baryon spectroscopy via measurement of polarization observables

02.12.19Vadim Lensky, Mainz
Nuclear structure contribution to the Lamb shift of muonic deuterium in pionless effective field theory

09.12.19Ethan Cline, MIT
In 2010 when the CREMA Collaboration released their measurement of the proton radius (Pohl et. al (2010)) from muonic hydrogen spectroscopy: rp=0.84184(67) fm. This was seven standard deviations smaller than the accepted 2010 CODATA value (0.8768(69) fm). This discrepancy lies at the heart of the proton radius puzzle. The MUon-Proton Scattering Experiment (MUSE) was first proposed in 2012 to be the first muon-proton elastic scattering experiment with sufficient precision to address the proton radius puzzle. MUSE has the capacity to simultaneously measure elastic muon-proton, and electron-proton scattering, and switch polarities to measure with opposite charge states. As such, MUSE can directly measure the two-photon effect by comparing charge-states, and compare muon and electron scattering with minimal systematic error. By comparing the two measured scattering cross sections, the experiment will provide more data for the proton radius puzzle and determine if the radius is the same in electron and muon-proton scattering. We will review the motivation for and status of MUSE, which is due to begin production running in 2020. Initial analysis results will be shown from the summer 2019 beam time.

16.12.19Varvara Batozskaya, National Centre for Nuclear Research, Warsaw
The measurement of the mixing-induced CP-violating phase phi_s in the Bs − B̄s system is one of the key goals of the LHCb experiment. It has been measured at the LHCb collaboration with several decay channels. Thanks to the precise prediction of the phi_s value in the frame of the Standard Model, it represents an excellent probe to search for new physics.

20.01.20Christoph Matejcek, Mainz
Low-energy beam transport system for MESA

27.01.20Alexey Tyukin, Mainz
Momentum transfer reconstruction for the P2 Experiment

03.02.20Oliver Noll, Mainz
Digital signal processing for the PANDA electromagnetic calorimeter

Koordination:

Prof. Dr. Michael Ostrick
Institut für Kernphysik
ostrick@kph.uni-mainz.de