High Energy Physics Seminars

Probing B ā†’ K* š¯›¾ decays at Belle II experiment and lepton identification with silicon vertex detector.

by Mr. Rahul Tiwari (DHEP, TIFR)

Monday, May 3, 2021 from to (Asia/Kolkata)
at TIFR, Mumbai ( D406 )
Description
The B meson decay to the K *š¯›¾ final state is forbidden at tree level in the standard model (SM) and proceeds through one-loop b → sš¯›¾ diagram. Extensions of the SM predict new particles that can contribute to the loop and alter the branching fraction as well as other observables from their SM predictions, making the decay an excellent probe for such theories. We present a study based on simulated data from the Belle II experiment at the SuperKEKB e+e- collider. In the second half, we report results on an improved identification performance for low-momentum leptons, especially electrons, using energy loss information from the silicon-strip vertex detector of the experiment.