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  • Letter
  • Open Access

Inclusive production of fully charmed tetraquarks at the LHC

Feng Feng1,2,*, Yingsheng Huang3,4,†, Yu Jia2,5,‡, Wen-Long Sang6,§, De-Shan Yang5,2,∥, and Jia-Yue Zhang2,5,¶

  • 1China University of Mining and Technology, Beijing 100083, China
  • 2Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • 3High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 4Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
  • 5School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China
  • 6School of Physical Science and Technology, Southwest University, Chongqing 400700, People’s Republic of China

  • *F.Feng@outlook.com
  • †yingsheng.huang@northwestern.edu
  • ‡jiay@ihep.ac.cn
  • §wlsang@swu.edu.cn
  • ∥yangds@ucas.ac.cn
  • zhangjiayue@ihep.ac.cn
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Phys. Rev. D 108, L051501 – Published 5 September, 2023

DOI: https://doi.org/10.1103/PhysRevD.108.L051501

Abstract

The X(6900) resonance, originally discovered by the LHCb Collaboration and later confirmed by both the ATLAS and CMS experiments, has sparked broad interest in the fully charmed tetraquark states. Relative to the mass spectra and decay properties of fully heavy tetraquarks, our knowledge on their production mechanism is still rather limited. In this work, we investigate the inclusive production of fully charmed S-wave tetraquarks at the LHC within the nonrelativistic QCD factorization framework. The partonic cross sections are computed at lowest order in αs and velocity, while the long-distance nonrelativistic QCD matrix elements are estimated from phenomenological potential models. We predict the differential pT spectra of various fully charmed S-wave tetraquarks at the LHC and compare with the results predicted from the fragmentation mechanism at the large-pT end.

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Phys. Rev. D 108, L051501– Published 5 September, 2023
  • Received 28 April 2023
  • Accepted 4 August 2023
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