Production of Λc+ baryons in proton-proton and lead-lead collisions at √s NN=5.02TeV / А. М. Sirunyan, A. R. Tumasyan, W. Adam [et al.]

Уровень набора: Physics Letters BАльтернативный автор-лицо: Sirunyan, А. М.;Tumasyan, A. R.;Adam, W., Wolfgang;Ambrogi, F., Federico;Tyurin, N. E., Nikolay Evgenjevich;Babaev, A. A., physicist, engineer-issledovatelskogo Polytechnic University, candidate of physical and mathematical Sciences, 1981-, Anton AnatoljevichКоллективный автор (вторичный): Национальный исследовательский Томский политехнический университет, Исследовательская школа физики высокоэнергетических процессов, (2017- )Язык: английский.Резюме или реферат: The transverse momentum (pT) spectra of inclusively produced Λc+ baryons are measured via the exclusive decay channel Λc+→pK−π+ using the CMS detector at the LHC. Spectra are measured as a function of transverse momentum in proton-proton (pp) and lead-lead (PbPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The measurement is performed within the Λc+ rapidity interval |y|<1 in the pT range of 5-20GeV/c in pp and 10-20GeV/c in PbPb collisions. The observed yields of Λc+ for pT of 10-20GeV/c suggest a suppression in central PbPb collisions compared to pp collisions scaled by the number of nucleon-nucleon (NN) interactions. The Λc+/D0 production ratio in pp collisions is compared to theoretical models. In PbPb collisions, this ratio is consistent with the result from pp collisions in their common pT range..Примечания о наличии в документе библиографии/указателя: [References.: 46 tit.].Тематика: электронный ресурс | труды учёных ТПУ | CMS | physics | lambda(c) baryons | nuclear modification factor | heavy flavor Ресурсы он-лайн:Щелкните здесь для доступа в онлайн
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[References.: 46 tit.]

The transverse momentum (pT) spectra of inclusively produced Λc+ baryons are measured via the exclusive decay channel Λc+→pK−π+ using the CMS detector at the LHC. Spectra are measured as a function of transverse momentum in proton-proton (pp) and lead-lead (PbPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The measurement is performed within the Λc+ rapidity interval |y|<1 in the pT range of 5-20GeV/c in pp and 10-20GeV/c in PbPb collisions. The observed yields of Λc+ for pT of 10-20GeV/c suggest a suppression in central PbPb collisions compared to pp collisions scaled by the number of nucleon-nucleon (NN) interactions. The Λc+/D0 production ratio in pp collisions is compared to theoretical models. In PbPb collisions, this ratio is consistent with the result from pp collisions in their common pT range.

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