| Issue |
EPJ Web of Conf.
Volume 290, 2023
European Nuclear Physics Conference (EuNPC 2022)
|
|
|---|---|---|
| Article Number | 06004 | |
| Number of page(s) | 4 | |
| Section | P6 Hadron Structure, Spectroscopy and Dynamics | |
| DOI | https://doi.org/10.1051/epjconf/202329006004 | |
| Published online | 08 December 2023 | |
https://doi.org/10.1051/epjconf/202329006004
NP effects in Λb → Λc(*) semileptonic decays
1 Instituto de Física Corpuscular (centro mixto CSIC-UV), Institutos de Investigación de Paternam C/Catedrático Beltrán 2, E-46980 Paterna, València, Spain
2 Departamento de Física Fundamental e IUFFyM, Universidad de Salamanca, Plaza de la Merced s/n, E-37008 Salamanca, Spain
* e-mail: neuspe@ific.uv.es
Published online: 8 December 2023
In the context of lepton flavor universality violation (LFUV) studies, we study different observables related to the b → cτν¯τ semileptonic decays. These observables are expected to help in distinguishing between different New Physics (NP) scenarios. Since the τ lepton is very short-lived, we consider three subsequent τ-decay modes, two hadronic πντ and ρντ and one leptonic µν¯µντ. This approach enables the differential decay width to be written in terms of visible (experimentally accessible) variables of the massive particle created in the τ decay. We present numerical results for the observables that can be accessed through the visible kinematics for the Λb → Λc and the Λb → Λ˚c p2595q transitions. This work is based on Refs.[1–3].
© The Authors, published by EDP Sciences, 2023
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