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T: Fachverband Teilchenphysik

T 83: Theory BSM

T 83.3: Vortrag

Mittwoch, 22. März 2023, 18:00–18:15, HSZ/0201

Corrections of the B meson baryogengesis model to lifetimes of B mesons. — •Ali Mohamed, Alexander Lenz, Maria Laura Piscopo, Aleksey Rusov, and Zachary Wüthrich — Siegen university

The framework of B meson Baryogenesis by Alonso-Álvarez, Elor, and Escudero aims at describing the matter-antimatter asymmetry and the existence of dark matter in the Universe by introducing new decay channels of the b quark. These new decay channels could also modify other observables, e.g. the lifetime ratio of B⁺ and B_d mesons. We perform a study of the possible size of these new contributions to τ(B⁺) / τ (B_d) within the framework of the Heavy Quark Expansion.