Measurement of B+, B0 and Λ0b production in pPb collisions at √sNN=8.16 TeV; Physical Review D; Vol. 99, iss. 5
| Parent link: | Physical Review D: particles, fields, gravitation, and cosmology Vol. 99, iss. 5.— 2019.— [052011, 21 p.] |
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| Korporace: | , |
| Další autoři: | , , , , , |
| Shrnutí: | Title screen The production of B+, B0 and Λ0b hadrons is studied in proton-lead collisions at a center-of-mass energy per nucleon pair of √sNN=8.16 TeV recorded with the LHCb detector at the LHC. The measurement uses a dataset corresponding to an integrated luminosity of 12.2±0.3 nb−1 for the case where the proton beam is projected into the LHCb detector (corresponding to measuring hadron production at positive rapidity) and 18.6±0.5 nb−1 for the lead beam projected into the LHCb detector (corresponding to measuring hadron production at negative rapidity). Double-differential cross sections are measured and used to determine forward-backward ratios and nuclear modification factors, which directly probe nuclear effects in the production of beauty hadrons. The double-differential cross sections are measured as a function of the beauty-hadron transverse momentum and rapidity in the nucleon-nucleon center-of-mass frame. Forward-to-backward cross section ratios and nuclear modification factors indicate a significant nuclear suppression at positive rapidity. The ratio of Λ0b over B0 production cross sections is reported and is consistent with the corresponding measurement in pp collisions. |
| Jazyk: | angličtina |
| Vydáno: |
2019
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| Témata: | |
| On-line přístup: | http://earchive.tpu.ru/handle/11683/64877 https://doi.org/10.1103/PhysRevD.99.052011 |
| Médium: | Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663429 |
| Shrnutí: | Title screen The production of B+, B0 and Λ0b hadrons is studied in proton-lead collisions at a center-of-mass energy per nucleon pair of √sNN=8.16 TeV recorded with the LHCb detector at the LHC. The measurement uses a dataset corresponding to an integrated luminosity of 12.2±0.3 nb−1 for the case where the proton beam is projected into the LHCb detector (corresponding to measuring hadron production at positive rapidity) and 18.6±0.5 nb−1 for the lead beam projected into the LHCb detector (corresponding to measuring hadron production at negative rapidity). Double-differential cross sections are measured and used to determine forward-backward ratios and nuclear modification factors, which directly probe nuclear effects in the production of beauty hadrons. The double-differential cross sections are measured as a function of the beauty-hadron transverse momentum and rapidity in the nucleon-nucleon center-of-mass frame. Forward-to-backward cross section ratios and nuclear modification factors indicate a significant nuclear suppression at positive rapidity. The ratio of Λ0b over B0 production cross sections is reported and is consistent with the corresponding measurement in pp collisions. |
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| DOI: | 10.1103/PhysRevD.99.052011 |