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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2025 Volume 121, Issue 4, Pages 249–252 (Mi jetpl7440)

This article is cited in 1 paper

FIELDS, PARTICLES, AND NUCLEI

Why we do not see the radiative decays of the $D_{s1}^+$ (2536) meson?

A. Bondarab

a Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
b Novosibirsk State University, Novosibirsk, 630090 Russia

Abstract: The radiative decays of $D_{s1}(2536)^+$ charmed-strange meson have not been observed. We employ the available Babar measurements to derive an upper bound for the $D_{s1}(2536)^+\to D_s^+\gamma $ decay width and discuss its implications for the quark structure of $D_{s1}(2460)^+$.

Received: 03.11.2024
Revised: 16.12.2024
Accepted: 16.12.2024

DOI: 10.31857/S0370274X25020139


 English version:
Journal of Experimental and Theoretical Physics Letters, 2025, 121:4, 231–235


© Steklov Math. Inst. of RAS, 2026