Survey of FCNC in Light Dark Vector Boson Models

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Date: October 7, 2022
Time: 3:30 p.m. - 4:30 p.m.
Location: Physics & Astronomy Department - Liberal Arts and Sciences # 312 | Map
Category: Seminar

Survey of FCNC in Light Dark Vector Boson Models

Lopamudra Mukherjee, University of Mississippi

In this talk I will take you through different light vector boson models and illustrate their fate in context to flavour changing neutral current decays of the B- and K-meson. Contrary to the findings of an earlier work, due to the correct calculations of the FCNC amplitudes, we report that O(1) couplings are not required to fit the data on rare and flavour changing B and K decays. We also include a robust treatment of hadronic decays of dark Z in its width. However, we also find that the allowed parameter region, in spite of providing a very good fit to the b -> s l+ l− data, are ruled out from various other constraints from low energy measurements such as the atomic parity violation, K+ -> mu+ + invisible decay, Bs − Bs-bar mixing, etc.

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