Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 31: Flavour physics II
T 31.7: Vortrag
Dienstag, 1. April 2025, 17:45–18:00, VG 1.104
Search for New Physics with B0 → D* µ ν angular analysis and LHCb — •Tobias Knospe1, Johannes Albrecht1, Biljana Mitreska1, Hasret Nur3, Lucia Grillo3, Greg Ciezarek4, Marco Gersabeck5, Derek Yeung2, and Manuel Schiller3 — 1TU Dortmund University, Dortmund, Germany — 2The University of Manchester, Manchester, UK — 3University of Glasgow, Glasgow, UK — 4CERN, Geneva, Switzerland — 5Albert-Ludwigs-Universitaet-Freiburg, Freiburg, Germany
Studying the angular structure of b → c ℓ ν using effiective field theory allows to probe potential New Physics (NP) effects. An angular analysis of the B0 → D*µν decay is presented, based on proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 3 fb−1. The signal decays are extracted through a multidimensional fit to the data, using templated distributions derived from both simulation and control samples in the proton-proton collision data. The real and imaginary parts of NP Wilson coefficients are measured in single-coefficient scenarios and a combined multi-parameter fit. Additionally, hadronic form factors are measured in a Standard Model scenario using CLN, BGL and BLPR parameterizations.
Keywords: semileptonic; angular analysis; lhcb; form factor; eft