Tetraquarks from intrinsic heavy quarks

Vogt, R.

doi:10.1103/PhysRevD.110.074036

Tetraquarks from intrinsic heavy quarks

Journal Article · Mon Oct 28 00:00:00 EDT 2024 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.110.074036· OSTI ID:2475210

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Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Univ. of California, Davis, CA (United States)

A number of new tetraquark candidate states containing from one to four charm or anticharm quarks have been observed recently. Many of these new states have been discovered at the LHC. The production of these states via intrinsic charm in the proton is investigated. The tetraquark masses obtained in this approach, while dependent on the internal transverse momenta of the partons in the state, are shown to agree well with the measured masses. These calculations can provide some insight into the nature of the tetraquark candidates, whether as a bound meson pair or as a looser configuration of four individual partons. The kinematic distributions of these states as a function of rapidity and transverse momentum are also studied. The possible cross sections for these states are finally considered, with a comparison to the 𝑋⁡(3872) 𝑝_𝑇 distributions from 𝑝 +𝑝 collisions at $$\sqrt{s}$$ =13 TeV.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Texas A & M Univ., College Station, TX (United States)

Sponsoring Organization:: USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP)

Contributing Organization:: HEFTY Collaboration

Grant/Contract Number:: AC52-07NA27344; SC0023547

OSTI ID:: 2475210

Alternate ID(s):: OSTI ID: 2513987
OSTI ID: 2967130

Report Number(s):: LLNL--JRNL-864626; e-print arXiv: https://arxiv.org/abs/2405.09018

Journal Information:: Physical Review D, Journal Name: Physical Review D Journal Issue: 7 Vol. 110; ISSN 2470-0010; ISSN 2470-0029

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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