PoS - Proceedings of Science
Volume 462 - 16th International Conference on Heavy Quarks and Leptons (HQL2023) - Posters
Search for B → D*ηπ Decays with Belle II data
V.s. Vismaya, S. Sandilya, K. Trabelsi and S. Sandilya*
Full text: pdf
Pre-published on: April 14, 2024
Published on:
Abstract
We present a search for the yet-unobserved B → D*ηπ decay at Belle II. This search can provide information for the understanding of the so-called semileptonic gap, which is the deficit in the sum of the branching fractions (BF) of known exclusive decays with respect to the measured inclusive 𝑏 → 𝑐ℓ𝜈 branching fraction. Widely used models to fill this deficit assume the existence of B → D*ηπ decays with BF of 4 × 10−3 , which could imply a BF of B → D*ηπ of about 2 × 10−4 . Using the full sample collected by the Belle II experiment in 2019-2022, the expected upper limit on the BF of B → D*ηπ is 1 × 10−4 . This search would also improve knowledge of the B hadronic sector significantly.
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.