| Autor: |
Alexander Lenz, Jakob Müller, Maria Laura Piscopo, Aleksey V. Rusov |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-27 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1029-8479 |
| DOI: |
10.1007/JHEP09(2023)028 |
| Popis: |
Abstract Inspired by the recently observed tensions between the experimental data and the theoretical predictions, based on QCD factorisation, for several colour-allowed non-leptonic B-meson decays, we study the potential size of new physics (NP) effects in the decay channels b → cūd(s). Starting from the most general effective Hamiltonian describing the b → cūd(s) transitions, we compute NP contributions to the theoretical predictions of B-meson lifetime and of B-mixing observables. The well-known lifetime ratio τ(B +)/τ(B d ) and the experimental bound on the semi-leptonic CP asymmetry a sl d $$ {a}_{sl}^d $$ , provide strong, complementary constraints on some of the NP Wilson coefficients. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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