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http://earchive.tpu.ru/handle/11683/64877
Название: | Measurement of B+, B0 and Λ0b production in pPb collisions at √sNN=8.16 TeV |
Авторы: | Aaij, Roel Beteta, Carlos Abellan Adeva, Bernardo Shapkin, Mikhail Mikhaylovich Panshin, Gennady Leonidovich Strokov, Sergey Aleksandrovich |
Дата публикации: | 2019 |
Издатель: | American Physical Society |
Библиографическое описание: | Measurement of B+, B0 and Λ0b production in pPb collisions at √sNN=8.16 TeV / R. Aaij, C. A. Beteta, B. Adeva [et al.] // Physical Review D. — 2019. — Vol. 99, iss. 5. — [052011, 21 p.]. |
Аннотация: | 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. |
URI: | http://earchive.tpu.ru/handle/11683/64877 |
Располагается в коллекциях: | Репринты научных публикаций |
Файлы этого ресурса:
Файл | Описание | Размер | Формат | |
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reprint-nw-34598.pdf | 1,27 MB | Adobe PDF | Просмотреть/Открыть |
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