Nejc Košnik: LFU and CP violation with S3

https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)

We introduce the CP violating scalar leptoquark S3 to explain the measured values of the lepton universality ratios RK(∗). We derive constraints on the CP-even and CP-odd components of the leptoquark Yukawa couplings stemming from effects in b → sμμ and Bs mixing. For the b → sμμ processes we impose RK(∗), B(Bs → μ+μ−), as well … Read More

Kaladi Babu: TBA

https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)

https://indico.ijs.si/event/1422/

Saša Prelovšek: Evidence for a doubly charm tetraquark pole from lattice QCD

https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)

 Recently LHCb collaboration discovered a doubly charmed tetraquark (Tcc) with exotic flavor content ccud slightly below DD* threshold. I'll present the first lattice QCD determination of DD* scattering amplitude which is needed to theoretically establish Tcc. The resulting scattering amplitude provides a signature for a pole related to Tcc for the … Read More

Miguel Vanvlasselaer: Dark Matter production from relativistic bubble walls

https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (Zoom)

In this paper we present a novel mechanism for producing the observed Dark Matter (DM) relic abundance during the First Order Phase Transition (FOPT) in the early universe. We show that the bubble expansion with ultra-relativistic velocities can lead to … Read More