In:
Journal of Physics G: Nuclear and Particle Physics, IOP Publishing, Vol. 47, No. 4 ( 2020-04-01), p. 045111-
Abstract:
Transverse momentum spectra of inclusive J / ψ mesons produced in particle–particle, particle–nucleus and nucleus–nucleus collisions over a center-of-mass energy range from 17.4 GeV to 13 TeV are analyzed by a multi-component Schwinger mechanism. The model results are found to fit the experimental data measured by the ALICE, CDF, D0, HERA-B, E789, NA50, E705, LHCb and PHENIX Collaborations. We extract the distribution of minimum distance between the partons which form the charmonium c c ¯ . Moreover, the energy and rapidity dependent free parameters in Schwinger mechanism are obtained. The parameter related to string tension is found to increase with the increase of energy and to decrease with the increase of rapidity and centrality.
Type of Medium:
Online Resource
ISSN:
0954-3899
,
1361-6471
DOI:
10.1088/1361-6471/ab67e6
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2020
detail.hit.zdb_id:
1472964-7
Bookmarklink