000 03147nlm1a2200469 4500
001 664604
005 20231030041935.0
035 _a(RuTPU)RU\TPU\network\35788
035 _aRU\TPU\network\35787
090 _a664604
100 _a20210429a2021 k y0engy50 ba
101 0 _aeng
135 _aarnn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aStudies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies
_fА. М. Sirunyan, A. R. Tumasyan, W. Adam [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References.: 80 tit.]
330 _aMeasurements of the second Fourier harmonic coefficient () of the azimuthal distributions of prompt and nonprompt D0 mesons produced in and collisions are presented. Nonprompt D0 mesons come from beauty hadron decays. The data samples are collected by the CMS experiment at nucleon-nucleon center-of-mass energies of 13 and 8.16 TeV, respectively. In high multiplicity collisions, signals for prompt charm hadrons are reported for the first time, and are found to be comparable to those for light-flavor hadron species over a transverse momentum () range of 2–6 GeV. Compared at similar event multiplicities, the prompt D0 meson values in and collisions are similar in magnitude. The values for open beauty hadrons are extracted for the first time via nonprompt D0 mesons in collisions. For in the range of 2–5 GeV, the results suggest that for nonprompt D0 mesons is smaller than that for prompt D0 mesons. These new measurements indicate a positive charm hadron in collisions and suggest a mass dependence in between charm and beauty hadrons in the system. These results provide insights into the origin of heavy-flavor quark collectivity in small systems.
461 _tPhysics Letters B
463 _tVol. 813
_v[136036, 25 p.]
_d2021
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aCMS
610 1 _aridge
610 1 _acollectivity
610 1 _asmall systems
610 1 _aheavy flavor
610 1 _aelliptic flow
701 1 _aSirunyan
_bА. М.
701 1 _aTumasyan
_bA. R.
701 1 _aAdam
_bW.
_gWolfgang
701 1 _aAmbrogi
_bF.
_gFederico
701 1 _aBergauer
_bT.
_gThomas
701 1 _aTyurin
_bN. E.
_gNikolay Evgenjevich
701 1 _aBabaev
_bA. A.
_cphysicist
_cengineer-issledovatelskogo Polytechnic University, candidate of physical and mathematical Sciences
_f1981-
_gAnton Anatoljevich
_2stltpush
_3(RuTPU)RU\TPU\pers\35154
701 1 _aOkhotnikov
_bV. V.
_cphysicist
_cengineer of Tomsk Polytechnic University
_f1992-
_gVitaly Vladimirovich
_2stltpush
_3(RuTPU)RU\TPU\pers\36453
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа физики высокоэнергетических процессов
_c(2017- )
_h8118
_2stltpush
_3(RuTPU)RU\TPU\col\23551
801 2 _aRU
_b63413507
_c20211210
_gRCR
856 4 _uhttps://doi.org/10.1016/j.physletb.2020.136036
942 _cCF