Femtoscopy of the Origin of the Nucleon Mass

Author(s)

Krein, G. ^[1] ; Peixoto, T. C. ^{[1, 2]}

Affiliation

^[1] Univ Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz 271, Bloco 2, BR-01140070 Sao Paulo, SP - Brazil

^[2] Inst Fed Educ Cienciae Tecnol Sergipe, Rodovia Juscelino Kubitschek S-N, BR-49680000 Nossa Senhora Da Gloria, SE - Brazil

• Document type: Journal article
• Source: FEW-BODY SYSTEMS; v. 61, n. 4 NOV 19 2020.
• Web of Science Citations: 1

Abstract

We study the prospects of using femtoscopic low-momentum correlationmeasurements at the Large Hadron Collider to access properties of the J/psi-nucleon interaction. The QCD multipole expansion in terms of the J/psi chromopolarizability relates the forward scattering amplitude to a key matrix element to the origin of the nucleon mass problem, the average chromoelectric gluon distribution in the nucleon. We use information on the J/psi-nucleon interaction provided by lattice QCD simulations and phenomenological models to compute J/psi-nucleon correlation functions. The computed correlation functions show clear sensitivity to the interaction, in particular to the J/psi chromopolarizability. (AU)

• FAPESP's process: 13/01907-0 - São Paulo Research and Analysis Center
• Grantee: Sergio Ferraz Novaes
• Support Opportunities: Research Projects - Thematic Grants