Do Tetraquarks Exist? Understanding the Nature of the Mysterious Meson Candidate

Hoi Sing Cheung | 23-LW-036

Executive Summary

We will study the size of a tetraquark candidate, by considering relevant theoretical constraints and experimentally measuring the unknown size of this particle to confirm its nature. Confirming the candidate as a tetraquark state will represent the first expansion of the Standard Model of Particle Physics since the Higgs boson, and support future funded experimental efforts including the top construction priority the Electron-Ion Collider.

Publications, Presentations, and Patents

Vogt, Ramona. 2023. “Contribution from intrinsic charm production to fixed-target interactions with the SMOG Device at LHCb.” Phys. Rev. C 108 (July): 015201. LLNL-JRNL-847208

Vogt, Ramona. 2023. “Intrinsic Charm Production in Fixed-Target Experiments at the LHC.” Hard Probes Proceedings (July). LLNL-CONF-851622

Ramona Vogt, “Status of intrinsic charm” (Presentation, Seminar, Argonne National Laboratory, Lemont, IL, September 2023). LLNL-PRES-854385

Farid Salazar, Vincent Cheung, Ramona Vogt, and Zhongbo Kang,“Direct quarkonium production in eA collisions at small-x” (Presentation, California EIC Consortium Meeting, UC Berkeley, Berkeley, CA, August 2023). LLNL-PRES-853901

Ramona Vogt, “Status of intrinsic charm” (Presentation, CHARM 2023 Meeting, Siegen, Germany, July 2023). LLNL-PRES-851694

Vincent Cheung,“Progress of quarkonium production in the ICEM” (Presentation, HEFTY Collaboration Meeting at LBL, Berkeley, CA, May 2023). LLNL-PRES-849323

Vincent Cheung,“Heavy quarkonium production at the EIC” (Presentation, LLNL Institutional Postdoctoral Poster Symposium, Livermore, CA, May 2023). LLNL-POST-847891

Vincent Cheung,“Heavy quarkonium production at the EIC” (Presentation, APS April Meeting 2023, Minneapolis, MN, April 2023), LLNL-PRES-847642

Ramona Vogt, “Heavy Flavor and Quarkonium Production at RHIC and the LHC” (Invited Oral Presentation, APS April Meeting, Minneapolis, MN, April 2023). LLNL-PRES-847214

Ramona Vogt, “J/psi and D Meson Production by Intrinsic Charm” (Presentation,, contributed talk, APS April Meeting 2023, April 2023). LLNL-PRES-847212

Ramona Vogt, “Cold Nuclear Matter Effects on Heavy Flavor Production" (Presentation, GHP 2023, Minneapolis, MN, April 2023). LLNL-PRES-847211

Ramona Vogt, “Intrinsic Charm Production in Fixed-Target Experiments at the LHC” (Presentation, Hard Probes 2023, Aschaffenburg, Germany, 
March 2023). LLNL-PRES-847207

Vincent Cheung,"Quarkonium production in the improved color evaporation model” (Presentation, Heavy Flavor Production in Heavy‐Ion and Elementary Collisions: 22-3, Seattle, WA, October 2022). LLNL-PRES-841661

Vincent Cheung,“Heavy flavor and quarkonium production in pp collisions” (Presentation, PLS Postdoc Seminar, October, LLNL, Livermore, CA, 2022). LLNL-PRES-841057