Pole analysis on the doubly charmed meson in ${D}^{0}{D}^{0}{\ensuremath{\pi}}^{+}$ mass spectrum

Letter
Open Access

Pole analysis on the doubly charmed meson in $D^{0} D^{0} π^{+}$ mass spectrum

Ling-Yun Dai, Xiang Sun, Xian-Wei Kang, A. P. Szczepaniak, and Jie-Sheng Yu

Phys. Rev. D 105, L051507 – Published 23 March 2022

Abstract

In this paper, we study the scattering amplitudes of $D^{0} D^{0} π^{+} − D^{* +} D^{0}$ coupled channels based on the $K$ matrix within the Chew-Mandelstam formalism. The $D^{0} D^{0} π^{+}$ invariant mass spectrum of LHCb is fitted, and the pole parameters of the $T_{c c}^{+}$ are extracted. The analysis of pole behavior suggests that the $T_{c c}^{+}$ may originate from a $D^{* +} D^{0}$ virtual state and is formed as a result of an interplay between an attractive interaction between $D^{0}$ and $D^{* +}$ and coupling to $D^{0} D^{0} π^{+}$ channel.

Received 15 August 2021
Accepted 1 March 2022

DOI:https://doi.org/10.1103/PhysRevD.105.L051507

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Hadron-hadron interactions Particle interactions

Exotic mesons

Particle properties

Particles & Fields

Authors & Affiliations

Ling-Yun Dai ^1,2,*, Xiang Sun^1,2, Xian-Wei Kang^3,4, A. P. Szczepaniak^5,6,7,†, and Jie-Sheng Yu ^1,2,‡

¹School of Physics and Electronics, Hunan University, Changsha 410082, China
²Hunan Provincial Key Laboratory of High-Energy Scale Physics and Applications, Hunan University, Changsha 410082, China
³Key Laboratory of Beam Technology of the Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
⁴Beijing Radiation Center, Beijing 100875, China
⁵Physics Department, Indiana University, Bloomington, Indiana 47405, USA
⁶Center for Exploration of Energy and Matter, Indiana University, Bloomington, Indiana 47403, USA
⁷Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA

^*dailingyun@hnu.edu.cn
^†aszczepa@indiana.edu
^‡yujiesheng@hnu.edu.cn

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Vol. 105, Iss. 5 — 1 March 2022

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Physical Review D

covering particles, fields, gravitation, and cosmology

Pole analysis on the doubly charmed meson in $D^{0} D^{0} π^{+}$ mass spectrum

Ling-Yun Dai, Xiang Sun, Xian-Wei Kang, A. P. Szczepaniak, and Jie-Sheng Yu

Phys. Rev. D 105, L051507 – Published 23 March 2022

Abstract

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Article Text

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Physical Review D

covering particles, fields, gravitation, and cosmology

Pole analysis on the doubly charmed meson in D0D0π+ mass spectrum

Ling-Yun Dai, Xiang Sun, Xian-Wei Kang, A. P. Szczepaniak, and Jie-Sheng Yu

Phys. Rev. D 105, L051507 – Published 23 March 2022

Abstract

Physics Subject Headings (PhySH)

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Pole analysis on the doubly charmed meson in $D^{0} D^{0} π^{+}$ mass spectrum