Estimate of the S -wave D*K scattering length in the isospin-0 channel from Belle and LHCb data

IF 5 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-04-21 DOI:10.1103/physrevd.111.076022

N. N. Achasov, G. N. Shestakov

引用次数: 0

Abstract

It is shown that the Belle and LHCb data on the interference of the amplitudes of the S and D partial waves in the decays Ds1(2536)+→D*+KS0 and Ds1(2536)−→D¯*0K− allow us to obtain an estimate of the S-wave D*K scattering length in the channel with isospin I=0: |aD*K(0)|=(0.94±0.06) fm. The possibility of explaining the found value by the contribution of the Ds1(2460) resonance is discussed. The decay of Bs1(5830)→B*K¯ is also briefly discussed.

Published by the American Physical Society

2025

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利用Belle和LHCb数据估计同位旋0通道S波D*K散射长度

结果表明，Belle和LHCb数据对S和D部分波振幅在Ds1(2536)+→D*+KS0和Ds1(2536)−→D¯*0K−衰减中的干扰，使我们可以估计出同位旋I=0的通道中S波D*K的散射长度：|aD*K(0)|=(0.94±0.06)fm。讨论了用Ds1（2460）共振的贡献来解释发现值的可能性。本文还简要讨论了Bs1（5830）→B*K¯的衰减。2025年由美国物理学会出版

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.