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DC Field | Value | Language |
---|---|---|
dc.contributor.author | CMS Collaboration | en_US |
dc.contributor.author | Tumasyan, A. | en_US |
dc.contributor.author | ALPANA, K. | en_US |
dc.contributor.author | DUBE, SOURABH | en_US |
dc.contributor.author | KANSAL, B. | en_US |
dc.contributor.author | LAHA, A. | en_US |
dc.contributor.author | PANDEY, S. | en_US |
dc.contributor.author | RASTOGI, A. | en_US |
dc.contributor.author | SHARMA, SEEMA et al. | en_US |
dc.date.accessioned | 2024-04-01T05:08:12Z | |
dc.date.available | 2024-04-01T05:08:12Z | |
dc.date.issued | 2023-12 | en_US |
dc.identifier.citation | Physical Review Letters, 131(26), 262301. | en_US |
dc.identifier.issn | 1079-7114 | en_US |
dc.identifier.issn | 0031-9007 | en_US |
dc.identifier.uri | https://doi.org/10.1103/PhysRevLett.131.262301 | en_US |
dc.identifier.uri | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/8611 | |
dc.description.abstract | Quasireal photons exchanged in relativistic heavy ion interactions are powerful probes of the gluonic structure of nuclei. The coherent J/ψ photoproduction cross section in ultraperipheral lead-lead collisions is measured as a function of photon-nucleus center-of-mass energies per nucleon (WPbγN) over a wide range of 40<WPbγN<400 GeV. Results are obtained using data at the nucleon-nucleon center-of-mass energy of 5.02 TeV collected by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 1.52 nb−1. The cross section is observed to rise rapidly at low WPbγN, and plateau above WPbγN≈40 GeV, up to 400 GeV, entering a new regime of small Bjorken-x (≈6×10−5) gluons being probed in a heavy nucleus. The observed energy dependence is not predicted by current quantum chromodynamic models. | en_US |
dc.language.iso | en | en_US |
dc.publisher | American Physical Society | en_US |
dc.subject | Physics | en_US |
dc.subject | 2023 | en_US |
dc.title | Probing Small Bjorken- x Nuclear Gluonic Structure via Coherent J / ψ Photoproduction in Ultraperipheral Pb-Pb Collisions at √ s NN = 5.02 TeV | en_US |
dc.type | Article | en_US |
dc.contributor.department | Dept. of Physics | en_US |
dc.identifier.sourcetitle | Physical Review Letters | en_US |
dc.publication.originofpublisher | Foreign | en_US |
Appears in Collections: | JOURNAL ARTICLES |
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