# Seminars

Speaker: Grzegorz Żarnecki Title: T2K results on CP violation in the neutrino sector Abstract: Each of the three flavour states of neutrinos is a superposition of mass eigenstates. The flavour-mass mixing matrix may have an irreducible imaginary component resulting in possible CP symmetry violation in neutrino oscillations, i.e. asymmetries between neutrino and antineutrino oscillations. In …

Speaker: Anatolii Koval Title: Exploration of thermosphere wave field planetary structure via in-situ satellite measurements Abstract: The Earth’s atmosphere is in the process of dynamic adaptation and global movements striving to equilibrium. Development of new models requires a generation of much more precise numerical models of geo-space. Plenty of observations and theoretical estimations exposes the importance of …

## Graduate Seminar, 1st October 2018

Speaker:  Krzysztof Jodłowski Title: R(D) (R(D*)) anomaly in B(B*)\to D\tau\nu decay vs 1-loop leptonic corrections in MSSM Abstract: Quotient of branching ratios for different final lepton states – R(D) (R(D*)) – measured by LHCb, Belle and BaBar, deviates from predictions of Standard Model by \sim 2\sigma (4\sigma). One loop corrections in leptonic sector were calculated in …

Speaker: Viktor Svensson Title: Tensor Network techniques for many-body systems Abstract: In quantum many-body systems of even moderate sizes, Hilbert space is far too large to fit on a computer. This makes numerical calculations a challenge. With the use of tensor networks, certain classes of quantum states can be efficiently represented and computed. In this …

Speaker:  Oleksandr Kovalenko Title: Experimental tests of perturbative Quantum Chromodynamics Abstract:  The Deep Inelastic Scattering and Drell-Yan processes can’t be directly calculated. The factorization concept assumes that the cross sections of these processes can be expressed as a convolution of parton distribution functions and fragmentation functions (FFs). These functions can’t be obtained from the theory and …

Speaker: Erik Kofoed Title:  Asymptotic Freedom at Finite Temperatures and Densities Abstract: It is well known fact that the strong coupling constant in quantum chromodynamics (QCD) becomes weak at high energies which allows for perturbative calculations using Feynman diagrams. This is the phenomenon of asymptotic freedom. Much less clear is the status of asymptotic freedom at …

Speaker: Artem Poliszczuk Title: Searching for AGNs in the infrared data Abstract: In the era of big data driven astronomy creating trustable catalogs of astronomical objects plays crucial role in observational cosmology. In particular, Active Galactic Nuclei (AGN) catalogs still cause many difficulties for the observers. In my presentation I will briefly discuss the general …