Study of ϒ production in pPb collisions at √s[subscript NN] = 8.16 TeV
The production of ϒ(nS) mesons (n = 1, 2, 3) in pPb and Pbp collisions at a centre-of-mass energy per nucleon pair √s[subscript NN] = 8.16 TeV is measured by the LHCb experiment, using a data sample corresponding to an integrated luminosity of 31.8 nb[superscript −1]. The ϒ(nS) mesons are reconstruc...
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| Format: | Article |
| Language: | en_US |
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Springer Berlin Heidelberg
2019
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| Online Access: | http://hdl.handle.net/1721.1/120299 https://orcid.org/0000-0002-3684-1560 https://orcid.org/0000-0001-8285-3346 |
| _version_ | 1826208430139899904 |
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| author | Boettcher, Thomas Julian Craik, Daniel C Weisser, Constantin Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Boettcher, Thomas Julian Craik, Daniel C Weisser, Constantin Williams, Michael |
| author_sort | Boettcher, Thomas Julian |
| collection | MIT |
| description | The production of ϒ(nS) mesons (n = 1, 2, 3) in pPb and Pbp collisions at a centre-of-mass energy per nucleon pair √s[subscript NN] = 8.16 TeV is measured by the LHCb experiment, using a data sample corresponding to an integrated luminosity of 31.8 nb[superscript −1]. The ϒ(nS) mesons are reconstructed through their decays into two opposite-sign muons. The measurements comprise the differential production cross-sections of the ϒ(1S) and ϒ(2S) states, their forward-to-backward ratios and nuclear modification factors. The measurements are performed as a function of the transverse momentum pT and rapidity in the nucleon-nucleon centre-of-mass frame y* of the ϒ(nS) states, in the kinematic range pT < 25 GeV/c and 1.5 < y* < 4.0 (−5.0 < y* < −2.5) for pPb (Pbp) collisions. In addition, production cross-sections for ϒ(3S) are measured integrated over phase space and the production ratios between all three ϒ(nS) states are determined. Suppression for bottomonium in proton-lead collisions is observed, which is particularly visible in the ratios. The results are compared to theoretical models. Keywords: Heavy Ion Experiments |
| first_indexed | 2024-09-23T14:05:38Z |
| format | Article |
| id | mit-1721.1/120299 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:05:38Z |
| publishDate | 2019 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1202992022-09-28T18:22:51Z Study of ϒ production in pPb collisions at √s[subscript NN] = 8.16 TeV Boettcher, Thomas Julian Craik, Daniel C Weisser, Constantin Williams, Michael Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Boettcher, Thomas Julian Craik, Daniel C Weisser, Constantin Williams, Michael The production of ϒ(nS) mesons (n = 1, 2, 3) in pPb and Pbp collisions at a centre-of-mass energy per nucleon pair √s[subscript NN] = 8.16 TeV is measured by the LHCb experiment, using a data sample corresponding to an integrated luminosity of 31.8 nb[superscript −1]. The ϒ(nS) mesons are reconstructed through their decays into two opposite-sign muons. The measurements comprise the differential production cross-sections of the ϒ(1S) and ϒ(2S) states, their forward-to-backward ratios and nuclear modification factors. The measurements are performed as a function of the transverse momentum pT and rapidity in the nucleon-nucleon centre-of-mass frame y* of the ϒ(nS) states, in the kinematic range pT < 25 GeV/c and 1.5 < y* < 4.0 (−5.0 < y* < −2.5) for pPb (Pbp) collisions. In addition, production cross-sections for ϒ(3S) are measured integrated over phase space and the production ratios between all three ϒ(nS) states are determined. Suppression for bottomonium in proton-lead collisions is observed, which is particularly visible in the ratios. The results are compared to theoretical models. Keywords: Heavy Ion Experiments National Science Foundation (U.S.) 2019-02-08T19:15:17Z 2019-02-08T19:15:17Z 2018-04 2017-02 Article http://purl.org/eprint/type/JournalArticle 1029-8479 http://hdl.handle.net/1721.1/120299 Aaij, R., C. Abellán Beteta, B. Adeva, M. Adinolfi, C. A. Aidala, Z. Ajaltouni, et al. “Study of ϒ Production in pPb Collisions at √s[subscript NN] = 8.16 TeV.” Journal of High Energy Physics 2018, no. 11 (November 2018). © 2018 The Authors https://orcid.org/0000-0002-3684-1560 https://orcid.org/0000-0001-8285-3346 en_US https://doi.org/10.1007/JHEP11(2018)194 Journal of High Energy Physics Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Berlin Heidelberg Springer |
| spellingShingle | Boettcher, Thomas Julian Craik, Daniel C Weisser, Constantin Williams, Michael Study of ϒ production in pPb collisions at √s[subscript NN] = 8.16 TeV |
| title | Study of ϒ production in pPb collisions at √s[subscript NN] = 8.16 TeV |
| title_full | Study of ϒ production in pPb collisions at √s[subscript NN] = 8.16 TeV |
| title_fullStr | Study of ϒ production in pPb collisions at √s[subscript NN] = 8.16 TeV |
| title_full_unstemmed | Study of ϒ production in pPb collisions at √s[subscript NN] = 8.16 TeV |
| title_short | Study of ϒ production in pPb collisions at √s[subscript NN] = 8.16 TeV |
| title_sort | study of ϒ production in ppb collisions at √s subscript nn 8 16 tev |
| url | http://hdl.handle.net/1721.1/120299 https://orcid.org/0000-0002-3684-1560 https://orcid.org/0000-0001-8285-3346 |
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