Seminars WS 19/20


Tue 15.10.2019, 16.30 h (28B110)

Kumiko Kotera (Paris)

The Giant Radio Array for Neutrino Detection

The Giant Radio Array for Neutrino DetectionAbstract: The Giant Radio Array for Neutrino Detection (GRAND) project aims to detect ultra-high-energy cosmic neutrinos, cosmic rays, and gamma rays with a radio antenna array deployed over a total area of 200000 km2 in mountainous regions, in several favorable locations around the world. The strategy of GRAND is to detect air showers above 10^17 eV that are induced by the interaction of high-energy particles in the atmosphere or in the Earth crust, through its associated coherent radio-emission in the 50-200 MHz range. In its final configuration, GRAND plans to reach a sensitivity of ~10-10 GeV cm-2 s-1 sr-1 above 5*1017 eV and a sub-degree angular resolution. The 300-antenna pathfinder array, GRANDProto300 is planned to be deployed in 2021. It aims at demonstrating autonomous radio detection of inclined air-showers, and make measurements of the composition and the muon content of cosmic rays around the ankle energy. In this talk, we will show preliminary designs and simulation results, plans for the ongoing, staged approach to construction, and the rich research program made possible by the proposed sensitivity and angular resolution.


Tue 19.11.2019, 16.30 h (28B110)

Michal Bluj (Warsaw)

Testing CP structure of Higgs couplings at LHC

Violation of the CP symmetry is one of the Sakharov conditions required to explain the baryon asymmetry observed in Universe. Although the CP violation is already built in the Standard Model via quark mixing, its strength is not sufficient to explain the magnitude of the observed baryon asymmetry. This motivates searches for new sources of CP violation in the Higgs sector.


Tue 03.12.2019, 16.30 h (28B110)

Sascha Caron (Radboud University, Nikhef)



Tue 17.12.2019, 16.30 h (28B110)

Matthias Schröder (KIT)



Tue 14.01.2020, 16.30 h (28B110)

Dirk Krüger (DESY Hamburg)



Tue 21.01.2020, 16.30 h (28B110)

Peter Fackeldey (RWTH)



Tue 28.01.2020, 16.30 h (28B110)

Maria Ubiali (DAMTP Cambridge)