Study of the nonleptonic charmless decays with the QCD factorization approach

Lili Chen; Mengfei Zhao; Liting Wang; Yueyang Kang; Qin Chang; Junfeng Sun

doi:10.1140/epjc/s10052-023-12324-x

2024 Impact factor 4.8

Particles and Fields

Open Access

Eur. Phys. J. C (2023) 83: 1142
https://doi.org/10.1140/epjc/s10052-023-12324-x

Regular Article - Theoretical Physics

Study of the nonleptonic charmless $B \to S S$ $B \rightarrow SS$ decays with the QCD factorization approach

Lili Chen¹, Mengfei Zhao¹, Liting Wang¹, Yueyang Kang¹, Qin Chang¹^,2^e and Junfeng Sun¹

¹ Institute of Particle and Nuclear Physics, Henan Normal University, 453007, Xinxiang, China
² Institute of Physics, Henan Academy of Sciences, 455004, Zhengzhou, China

^e changqin@htu.edu.cn

Received: 18 August 2023
Accepted: 4 December 2023
Published online: 16 December 2023

Abstract

Inspired by the brilliant prospects of the ongoing B meson experiments, the hadronic charmless B $\to$ ${\rightarrow }$ SS decays are studied by considering the next-to-leading (NLO) contributions with the QCD factorization approach, where S denotes the scalar mesons $K_{0}^{*} (1430)$ $K_{0}^{*}(1430)$ and $a_{0} (1450)$ $a_{0}(1450)$ . Branching ratios and CP violating asymmetries are estimated with the updated values of hadronic parameters obtained from a covariant light-front quark model, for two scenarios where the scalar mesons are the $1^{3} P_{0}$ $1^{3}P_{0}$ and $2^{3} P_{0}$ $2^{3}P_{0}$ states. It is found that the NLO contributions are very important for the B $\to$ ${\rightarrow }$ SS decays. For the B $\to$ ${\rightarrow }$ $a_{0} (1450) K_{0}^{*} (1430)$ $a_{0}(1450)K_{0}^{*}(1430)$ and $B_{s}$ $B_{s}$ $\to$ ${\rightarrow }$ $K_{0}^{*} (1430) {\bar{K}}_{0}^{*} (1430)$ $K_{0}^{*}(1430)\overline{K}_{0}^{*}(1430)$ decays, branching ratios can reach up to the order of $O (10^{- 5})$ ${\mathcal {O}}(10^{-5})$ by assuming that the scalar mesons are the 1P states, and should first be investigated in the future experiments.

© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.