X(4630) and Y(4626) production in the B⁺ and B_s⁰ decays

2024/08/11 by Zhuo Yu, Qi Wu, Yu, Zhuo +3
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2408.05813

openalex publication_date 2024/08/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In the present work, we investigate the production of X(4630) and Y(4626) in B⁺ and B_s⁰ decays, where X(4630) and Y(4626) are considered as the C- parity pigeon pair in the D_s^∗+ D_s1(2536)^- molecular frame. The branching fractions of B⁺ → K⁺ X(4630)/Y(4626) and B_s⁰ → ηX(4630)/Y(4626) have been evaluated using an effective Lagrangian approach, which are of the order of 10^-5 and the ratios of these branching fractions are almost independent on the model parameter. Based on the present estimations, we propose to search Y(4626) in the process B⁺ → K⁺ J/ψη^(′), which should be accessible by the LHCb and Belle II Collaborations.

Related

• Hidden Charm Decays of Y(4626) in a D_s^*+D_s1(2536)^- Molecular Frame
• The B^-→ J/ψη^′ K^- reaction and the Y(4710) and K₀^*(1430) contributions
• X₀(2900) and its spin partners production in the B⁺ decay process
• Pole determination of X(3960) and X₀(4140) in decay B⁺→ K⁺D_s⁺D_s^-
• T_cs1^f(2750) production in the B⁺ decays processes