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Estimation of Υ(1S) production in ep process near threshold.
- Source :
-
European Physical Journal C -- Particles & Fields . Mar2020, Vol. 80 Issue 3, p1-5. 5p. - Publication Year :
- 2020
-
Abstract
- The near-threshold photo-productions of heavy quarkonia are important ways to test the QCD-inspired models and to constrain the gluon distribution of nucleon in the large x region. Investigating the various models, we choose a photon–gluon fusion model and a pomeron exchange model for J / Ψ photo-production near threshold, emphasising on the explanation of the recent experimental measurement by GlueX at JLab. We find that these two models are not only valid in a wide range of the center-of-mass energy of γ and proton, but also can be generalized to describe the Υ (1S) photo-production. Using these two models, we predict the electro-production cross-sections of Υ (1S) at EicC to be 48 fb to 85 fb at the center-of-mass energy of 16.75 GeV. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MANUFACTURING processes
*GLUONS
*PARTICLES (Nuclear physics)
*PROTONS
Subjects
Details
- Language :
- English
- ISSN :
- 14346044
- Volume :
- 80
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- European Physical Journal C -- Particles & Fields
- Publication Type :
- Academic Journal
- Accession number :
- 142707084
- Full Text :
- https://doi.org/10.1140/epjc/s10052-020-7845-6