Pionic and radiative transitions from to as a probe of the structure of

Zi-Li Yue; Cheng-Jian Xiao; Dian-Yong Chen

doi:10.1140/epjc/s10052-023-11948-3

2023 Impact factor 4.2

Particles and Fields

Open Access

Eur. Phys. J. C (2023) 83: 769
https://doi.org/10.1140/epjc/s10052-023-11948-3

Regular Article - Theoretical Physics

Pionic and radiative transitions from $T_{c \bar{s} 0}^{+} (2900)$ $T_{c\bar{s}0}^+(2900)$ to $D_{s 1}^{+} (2460)$ $D_{s1}^+(2460)$ as a probe of the structure of $D_{s 1}^{+} (2460)$ $D_{s1}^+(2460)$

Zi-Li Yue¹, Cheng-Jian Xiao² and Dian-Yong Chen¹^,3^c

¹ School of Physics, Southeast University, 210094, Nanjing, China
² Institute of Applied Physics and Computational Mathematics, 100088, Beijing, China
³ Lanzhou Center for Theoretical Physics, Lanzhou University, 730000, Lanzhou, China

^c chendy@seu.edu.cn

Received: 29 June 2023
Accepted: 21 August 2023
Published online: 31 August 2023

Abstract

In this work, we evaluated the widths of the pionic and radiative transitions from the $T_{c \bar{s} 0}^{+} (2900)$ $T_{c\bar{s}0}^{+}(2900)$ to the $D_{s 1}^{+} (2460)$ $D_{s1}^{+}(2460)$ in the $D_{s 1}^{+} (2460)$ $D_{s1}^{+}(2460)$ molecular frame and the $D_{s 1}^{+} (2460)$ $D_{s1}^{+}(2460)$ charmed-strange meson frame. Our estimations demonstrate that the transition widths in the $D_{s 1}^{+} (2460)$ $D_{s1}^{+}(2460)$ molecular frame are much larger than those in the the $D_{s 1}^{+} (2460)$ $D_{s1}^{+}(2460)$ charmed-strange meson frame. Specifically, the ratio of the widths of $Γ (T_{c \bar{s} 0}^{+} (2900) \to D_{s 1}^{+} π^{0})$ $\Gamma (T_{c\bar{s}0}^{+}(2900)\rightarrow D_{s1}^{+} \pi ^{0})$ and $Γ (T_{c \bar{s} 0}^{+} (2900) \to D^{+ (0)} K^{0 (+)})$ $\Gamma (T_{c\bar{s}0}^{+}(2900)\rightarrow D^{+(0)}K^{0(+)})$ is estimated to be around 0.1 in the $D_{s 1}^{+} (2460)$ $D_{s1}^{+}(2460)$ charmed-strange meson frame, whereas the lower limit of this ratio is 0.67 in the $D_{s 1}^{+} (2460)$ $D_{s1}^{+}(2460)$ molecular frame. Thus, the aforementioned ratio could be employed as a tool for testing the nature of the $D_{s 1}^{+} (2460)$ $D_{s1}^{+}(2460)$ .

© The Author(s) 2023

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