2024-03-30T05:13:40Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1957252020-12-12T16:56:59Zcom_10261_61com_10261_4col_10261_314
Measurement of B+, B0 and Λb0 production in pPb collisions at sNN =8.16 TeV
García Martín, L.M.
Henry, L.
Jashal, B.
Martínez-Vidal, Fernando
Oyanguren, Arantza
Remón Alepuz, Clara
Ruiz Vidal, Joan
Sánchez Mayordomo, Carlos
LHCb Collaboration
Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
The production of B+, B0 and Λb0 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 Λb0 over B0 production cross sections is reported and is consistent with the corresponding measurement in pp collisions.
2019-11-27T12:01:38Z
2019-11-27T12:01:38Z
2019-03
2019-11-27T12:01:39Z
artículo
Physical Review D 99 (5): 052011 (2019)
http://hdl.handle.net/10261/195725
10.1103/PhysRevD.99.052011
http://dx.doi.org/10.13039/501100011033
eng
Publisher's version
Sí
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FPA2017-85140-C3-3-P
FPA2017-85140-C3-3-P/AEI/10.13039/501100011033
http://creativecommons.org/licenses/by/4.0/
openAccess
American Physical Society