Study of the nonleptonic charmless B→SS decays with the QCD factorization approach.

Autor:	Chen, Lili, Zhao, Mengfei, Wang, Liting, Kang, Yueyang, Chang, Qin, Sun, Junfeng
Předmět:	BRANCHING ratios QUANTUM chromodynamics FACTORIZATION KAONS QUARK models MESONS
Zdroj:	European Physical Journal C -- Particles & Fields; Dec2023, Vol. 83 Issue 12, p1-16, 16p
Abstrakt:	Inspired by the brilliant prospects of the ongoing B meson experiments, the hadronic charmless B → 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) and 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 and 2 3 P 0 states. It is found that the NLO contributions are very important for the B → SS decays. For the B → a 0 (1450) K 0 ∗ (1430) and B s → K 0 ∗ (1430) K ¯ 0 ∗ (1430) decays, branching ratios can reach up to the order of O (10 - 5) by assuming that the scalar mesons are the 1P states, and should first be investigated in the future experiments. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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