Charged-particle nuclear modification factors in XeXe collisions at √s_NN = 5.44 TeV
| dc.contributor.author | CMS Collaboration | |
| dc.contributor.author | Buccilli, A. | |
| dc.contributor.author | Cooper, S.I. | |
| dc.contributor.author | Henderson, C. | |
| dc.contributor.author | Rumerio, P. | |
| dc.contributor.author | West, C. | |
| dc.contributor.other | University of Alabama Tuscaloosa | |
| dc.date.accessioned | 2022-08-02T15:20:08Z | |
| dc.date.available | 2022-08-02T15:20:08Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | The differential yields of charged particles having pseudorapidity within |η| < 1 are measured using xenon-xenon (XeXe) collisions at \(\sqrt{{s}_{NN}}=\phantom{\rule{0.25em}{0ex}}5.44\) TeV. The data, corresponding to an integrated luminosity of 3.42 μb\(^{−1}\), were collected in 2017 by the CMS experiment at the LHC. The yields are reported as functions of collision centrality and transverse momentum, \(p_T\), from 0.5 to 100 GeV. A previously reported \(p_{T}\) spectrum from proton-proton collisions at \(\sqrt{s}=5.02\) TeV is used for comparison after correcting for the difference in center-of-mass energy. The nuclear modification factors using this reference, \(R_{AA}^{*}\), are constructed and compared to previous measurements and theoretical predictions. In head-on collisions, the \(R_{AA}^{*}\) has a value of 0.17 in the \(p_{T}\) range of 6–8 GeV, but increases to approximately 0.7 at 100 GeV. Above ≈6 GeV, the XeXe data show a notably smaller suppression than previous results for lead-lead (PbPb) collisions at \(\sqrt{{s}_{NN}}=5.02\) TeV when compared at the same centrality (i.e., the same fraction of total cross section). However, the XeXe suppression is slightly greater than that for PbPb in events having a similar number of participating nucleons. | en_US |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J., Dragicevic, M., Erö, J., Escalante Del Valle, A., Flechl, M., Frühwirth, R., Ghete, V. M., Hrubec, J., Jeitler, M., Krammer, N., Krätschmer, I., Liko, D., … Woods, N. (2018). Charged-particle nuclear modification factors in XeXe collisions at $ \sqrt{s_{\mathrm{NN}}} = 5.44 $ TeV. In Journal of High Energy Physics (Vol. 2018, Issue 10). Springer Science and Business Media LLC. https://doi.org/10.1007/jhep10(2018)138 | |
| dc.identifier.doi | 10.1007/JHEP10(2018)138 | |
| dc.identifier.uri | https://ir.ua.edu/handle/123456789/9061 | |
| dc.language | English | |
| dc.language.iso | en_US | |
| dc.rights.uri | https://creativecommons.org/licenses/by/3.0 | |
| dc.subject | Hadron-Hadron scattering (experiments) | |
| dc.subject | Heavy-ion collision | |
| dc.subject | Quark gluon plasma | |
| dc.title | Charged-particle nuclear modification factors in XeXe collisions at √s_NN = 5.44 TeV | en_US |
| dc.type | text |
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