Wochenübersicht – letzte Woche

Wochenübersicht für die Woche vom

01 Dez 2019 bis 07 Dez 2019 (KW 50)

KW49 - KW50 - KW51 - KW52

Montag, 02.12 2019

Seminar about Experimental Particle and Astroparticle Physics (ETAP)

Institut für Physik

12:30 Uhr s.t., Staudingerweg 7, Minkowskiraum

Florian Thomas, Institut für Physik
Ultra-fast ray-tracing for the Wavelength-Shifting Optical Module

Masterkolloqium

Institutsseminar Kern- und Hadronenphysik

Institut für Kernphysik

14 Uhr c.t., HS Kernphysik, Becherweg 45

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

Seminar für Kern- und Radiochemie

Institut für Kernchemie

16 Uhr c.t., Seminarraum Kernchemie

Daniel Glckman, Karlsruher Institut für Technologie, Institut für Nukleare Entsorgung
Ultra-trace determination of actinides in clay systems with accelerator mass spectrometry and development of a diffusion setup for reducing conditions
Dienstag, 03.12 2019

Theorie-Palaver

Institut für Physik

14:30 Uhr s.t., MITP seminar room

Matthias Heller, Johannes Gutenberg-Universität
The Drell-Yan production of charged lepton pairs is one of the key processes measured at hadron colliders. The QCD corrections to the cross-section are known to order $alpha_s^2$ and electroweak corrections are known to order $alpha$. The next important step for a better theoretical understanding is the complete calculation of the mixed QCD-EW corrections of order $alpha alpha_s$. In this talk, I report on the first calculation of the virtual two-loop corrections of order $alpha alpha_s$ to the cross-section. The calculation is carried out analytically using tensor reduction, IBP relations and the method of differential equations. We validate a previous calculation of the subset of mixed QCD-QED corrections and show how the jet and soft functions of that reference can be used to subtract the infrared divergencies of the complete mixed QCD-electroweak virtual corrections. In the talk, I will focus on the calculation of the master integrals, which involve algebraic letters in the differential equation.

Physikalisches Kolloquium

Institut für Kernphysik, Johann Joachim Becher Weg 45

16 Uhr c.t., HS KPH

Professor Hendrik Hildebrandt, Faculty of Physics and Astronomy, RU Bochum
Observational cosmology with redshift galaxy
Donnerstag, 05.12 2019

Seminar über Theorie der kondensierten Materie / TRR146 Seminar

K. Binder/ S. Jabbari / A. Nikoubashman / F. Schmid / G. Settanni / T. Speck / M. Sulpizi / P. Virnau

10:30 Uhr s.t., Newtonraum, 01-122, Staudingerweg 9

Dr. Jianxiang Shen, Institut für Physik
Structure and properties of polymer nano-composites from molecular dynamics simulations
Freitag, 06.12 2019

Seminar Festkörper- und Grenzflächenphysik KOMET - experimentell

Institut für Physik

Sonderseminar: 10:00 Uhr s.t., MEDIEN-Raum, Staudinger Weg 7, 3. Stock, 03-431

Akashdeep Ghalayan, Indian Institute of Technology Delhi, India
Heusler Alloys have been widely studied due to their potential applications in spintronic devices. Understanding the material's magnetic properties is crucial for deciding its device-based applications. Heusler alloys with high spin polarization (~100 %) and high Curie temperature (~1000 K) are one of the most preferred materials in this regard. The cobalt-based Co2MnAl (CMA) Heusler alloys exhibit more than 50% spin polarization even in the disordered phase with high Curie temperature (Tc ~ 697 K) which is beneficial for device applications. Thin films of CMA with different Co-Mn concentrations have been grown using DC magnetron sputtering at constant growth temperature (Ts ~ 400°C) and film thickness (~ 50 nm) to investigate the effect of Co/Mn concentrations on their electrical transport behavior. X-ray diffraction studies revealed that films possess the A2 disordered phase at room temperature. Magnetic anisotropy, which is vital for magnetic switching device applications, has been investigated using the Longitudinal Magneto-Optic Kerr Effect technique. LMOKE studies revealed the presence of uniaxial magnetic anisotropy in these films. The origin of the uniaxial anisotropy in our films is attributed to obliquely directed material flux onto the substrates during the film-growth.

Sonderseminar