SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 54: Flavor IV

T 54.2: Vortrag

Mittwoch, 22. März 2023, 16:05–16:20, HSZ/0304

New Physics Studies in B_q⁰−B_q⁰ Mixing — Kristof De Bruyn^1,5, Robert Fleischer^1,2, •Eleftheria Malami^3,1, and Philine van Vliet⁴ — ¹Nikhef, Science Park 105, 1098 XG Amsterdam, Netherlands — ²Vrije Universiteit Amsterdam, 1081 HV Amsterdam, Netherlands — ³Center for Particle Physics Siegn (CPPS), Theoretische Physik 1, Universität Siegen, D-57068 Siegen, Germamy — ⁴Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany — ⁵Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, 9747 Groningen, Netherlands

Neutral B_q−B_q mixing (where q=d,s) is a powerful probe for testing the Standard Model and searching for New Physics. Focusing on the analyses of the different determinations of the Unitarity Triangle apex, we explore how much room for New Physics is left through the available experimental data. We discuss the discrepancies between inclusive and exclusive |V_ub| and |V_cb| CKM matrix elements and the determination of the angle γ. Presenting future scenarios, we discuss the application of our findings to leptonic rare B decays, allowing us to minimise the CKM parameters impact in the New Physics searches. We explore the impact of increased precision on key input measurements, performing future projections. It will be exciting to see how the data will evolve in the high-precision era of flavour physics.