MESON2021

Session

Parallel Session A4

20 May 2021, 17:25

online via ZOOM

Conveners

Parallel Session A4: Heavy quarks and symmetries

• Antoni Szczurek (Institute of Nuclear Physics PAS)

54. Indirect searches for new physics with heavy flavour decays at CMS

Somnath Choudhury (Indian Institute of Science)

20/05/2021, 17:25

Parallel

Indirect probes to new physics searches beyond the standard model have been performed in rare decays and angular analyses in the heavy flavour sector in proton collisions with the CMS detector at the LHC. The flavour changing neutral current decays are interesting probes to new physics searches. The measurement of Bs and B0 mesons decaying into dimuons can only proceed through higher-order...

55. Test of the CPT symmetry in positronium annihilations at sub-permil precision using the J-PET tomography device

Aleksander Gajos (Jagiellonian University)

20/05/2021, 17:45

The symmetry under combined charge, parity, and time-reversal transformation (CPT) remains scarcely tested in leptonic systems. We demonstrate that a Positron Emission Tomography device can be put to use in a search for CPT-violating angular correlations in the annihilations of the lightest leptonic bound system, the positronium atom. Using the Jagiellonian PET (J-PET) prototype conceived as a...

48. The interplay of axial mesons and short-distance constraints in g-2

Pablo Sanchez-Puertas (The Institute for High Energy Physics Barcelona)

20/05/2021, 18:05

Parallel

The anomalous magnetic moment of the muon, g-2, is among the most precise measured quantities in physics. Its nonzero value emerges purely out of quantum effects and its theoretical estimate involves all the known sectors of the Standard Model --- QED, QCD, and EW sectors--- to meet the current level of experimental precision. Interesting enough, there is at present $3.7\sigma$ tension among...