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Title: Near threshold J / ψ and ϒ photoproduction at JLab and RHIC

Abstract

We update our previous calculation of J/ψ photo-production near threshold by incorporating the recent developments in theory and the new experimental data from the GlueX collaboration at Jefferson Lab. We then propose to study the near threshold production of Υ 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 QCD trace anomaly. Our result emphasizes the role of gluons as the origin of the proton mass.

Authors:
; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1545425
Alternate Identifier(s):
OSTI ID: 1560009
Report Number(s):
BNL-212016-2019-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 014032
Grant/Contract Number:  
SC0012704
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 100 Journal Issue: 1; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Hatta, Yoshitaka, Rajan, Abha, and Yang, Di-Lun. Near threshold J / ψ and ϒ photoproduction at JLab and RHIC. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.100.014032.
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Hatta, Yoshitaka, Rajan, Abha, & Yang, Di-Lun. Near threshold J / ψ and ϒ photoproduction at JLab and RHIC. United States. doi:10.1103/PhysRevD.100.014032.
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Hatta, Yoshitaka, Rajan, Abha, and Yang, Di-Lun. Mon . "Near threshold J / ψ and ϒ photoproduction at JLab and RHIC". United States. doi:10.1103/PhysRevD.100.014032.
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@article{osti_1545425,
title = {Near threshold J / ψ and ϒ photoproduction at JLab and RHIC},
author = {Hatta, Yoshitaka and Rajan, Abha and Yang, Di-Lun},
abstractNote = {We update our previous calculation of J/ψ photo-production near threshold by incorporating the recent developments in theory and the new experimental data from the GlueX collaboration at Jefferson Lab. We then propose to study the near threshold production of Υ 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 QCD trace anomaly. Our result emphasizes the role of gluons as the origin of the proton mass.},
doi = {10.1103/PhysRevD.100.014032},
journal = {Physical Review D},
number = 1,
volume = 100,
place = {United States},
year = {2019},
month = {7}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.100.014032
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Cited by: 5 works
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Figures / Tables:

FIG. 1 FIG. 1: Left panel : Fits of the GlueX data for the total cross section. The red curve corresponds to b = 0 and the blue curve corresponds to b = 1. Right panel : Comparisons between the GlueX data and our model for differential cross sections, where $δt$ =more » $t$−$t$min. Color assignments are the same as the left panel, while the solid, dashed, and dot-dashed curves correspond to $E$$γ$ = 10, 10.3, and 10.6 GeV, respectively. The experimental data are taken for 10 < $E$$γ$ < 11.8 GeV.« less
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    FIG. 1 (p. 7)figure
    FIG. 2 (p. 8)figure
    FIG. 3 (p. 9)figure
    FIG. 4 (p. 10)figure
    FIG. 5 (p. 10)figure
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