Near threshold J/ψ and φ photoproduction at JLab and RHIC

Yoshitaka Hatta, Abha Rajan, Di Lun Yang

研究成果: Article査読

21 被引用数 (Scopus)

抄録

We update our previous calculation of J/ψ photoproduction near threshold [Y. Hatta and D. L. Yang, Phys. Rev. D 98, 074003 (2018)PRVDAQ2470-001010.1103/PhysRevD.98.074003] by incorporating the recent developments in theory and the new experimental data from Ali et al. [the GlueX Collaboration] at Jefferson Laboratory. We then propose to study the near threshold production of φ and J/ψ in ultraperipheral pA collisions at RHIC. These processes are sensitive to the gluon condensate in the proton which is related to the proton mass via the QCD trace anomaly. Our result emphasizes the role of gluons in generating the proton mass.

本文言語English
論文番号014032
ジャーナルPhysical Review D
100
1
DOI
出版ステータスPublished - 2019 7月 29

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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