Measurement of prompt D0, D+, D*+, and D-s(+) production in p-Pb collisions at root S-NN = 5.02 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00522233" target="_blank" >RIV/61389005:_____/19:00522233 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/19:00522233

Výsledek na webu

<a href="https://doi.org/10.1007/JHEP12(2019)092" target="_blank" >https://doi.org/10.1007/JHEP12(2019)092</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP12(2019)092" target="_blank" >10.1007/JHEP12(2019)092</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of prompt D0, D+, D*+, and D-s(+) production in p-Pb collisions at root S-NN = 5.02 TeV

Popis výsledku v původním jazyce

The measurement of the production of prompt D0, D+, D*+, and D-S(+) mesons in proton-lead (p-Pb) collisions at the centre-of-mass energy per nucleon pair of root s-NN= 5.02 TeV, with an integrated luminosity of 292 ± 11 mb−1, are reported. Differential production cross sections are measured at mid-rapidity (−0.96 < ycms< 0.04) as a function of transverse momentum (pT) in the intervals 0 < pT< 36 GeV/c for D0, 1 < pT< 36 GeV/c for D+ and D*+, and 2 < pT< 24 GeV/c for D+ mesons. For each species, the nuclear modification factor RpPb is calculated as a function of pT using a proton-proton (pp) reference measured at the same collision energy. The results are compatible with unity in the whole pT range. The average of the non-strange D mesons Rp Pb is compared with theoretical model predictions that include initial-state effects and parton transport model predictions. The pT dependence of the D0, D+, and D*+ nuclear modification factors is also reported in the interval 1 < pT< 36 GeV/c as a function of the collision centrality, and the central-to-peripheral ratios are computed from the D-meson yields measured in different centrality classes. The results are further compared with charged-particle measurements and a similar trend is observed in all the centrality classes. The ratios of the pT-differential cross sections of D0, D+, D*+, and D-S(+) mesons are also reported. The D-S(+)and D(+) yields are compared as a function of the charged-particle multiplicity for several pT intervals. No modification in the relative abundances of the four species is observed with respect to pp collisions within the statistical and systematic uncertainties.

Název v anglickém jazyce

Measurement of prompt D0, D+, D*+, and D-s(+) production in p-Pb collisions at root S-NN = 5.02 TeV

Popis výsledku anglicky

The measurement of the production of prompt D0, D+, D*+, and D-S(+) mesons in proton-lead (p-Pb) collisions at the centre-of-mass energy per nucleon pair of root s-NN= 5.02 TeV, with an integrated luminosity of 292 ± 11 mb−1, are reported. Differential production cross sections are measured at mid-rapidity (−0.96 < ycms< 0.04) as a function of transverse momentum (pT) in the intervals 0 < pT< 36 GeV/c for D0, 1 < pT< 36 GeV/c for D+ and D*+, and 2 < pT< 24 GeV/c for D+ mesons. For each species, the nuclear modification factor RpPb is calculated as a function of pT using a proton-proton (pp) reference measured at the same collision energy. The results are compatible with unity in the whole pT range. The average of the non-strange D mesons Rp Pb is compared with theoretical model predictions that include initial-state effects and parton transport model predictions. The pT dependence of the D0, D+, and D*+ nuclear modification factors is also reported in the interval 1 < pT< 36 GeV/c as a function of the collision centrality, and the central-to-peripheral ratios are computed from the D-meson yields measured in different centrality classes. The results are further compared with charged-particle measurements and a similar trend is observed in all the centrality classes. The ratios of the pT-differential cross sections of D0, D+, D*+, and D-S(+) mesons are also reported. The D-S(+)and D(+) yields are compared as a function of the charged-particle multiplicity for several pT intervals. No modification in the relative abundances of the four species is observed with respect to pp collisions within the statistical and systematic uncertainties.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/LTT17018" target="_blank" >LTT17018: Získávání nových poznatků o mikrosvětě v infrastruktuře CERN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of High Energy Physics

ISSN

1126-6708

e-ISSN

—

Svazek periodika

2019

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

43

Strana od-do

92

Kód UT WoS článku

000511682800001

EID výsledku v databázi Scopus

2-s2.0-85076474609