Title
Measurement of prompt D0 , D+ , D*+ , and DS+ production in p–Pb collisions at √sNN = 5.02 TeV
Date Issued
01 December 2019
Access level
open access
Resource Type
journal article
Author(s)
Acharya S.
Adamová D.
Adhya S.P.
Adler A.
Adolfsson J.
Aggarwal M.M.
Aglieri Rinella G.
Agnello M.
Agrawal N.
Ahammed Z.
Ahmad S.
Ahn S.U.
Akindinov A.
Al-Turany M.
Alam S.N.
Albuquerque D.S.D.
Aleksandrov D.
Alessandro B.
Alfanda H.M.
Alfaro Molina R.
Ali B.
Ali Y.
Alici A.
Alkin A.
Alme J.
Alt T.
Altenkamper L.
Altsybeev I.
Anaam M.N.
Andrei C.
Andreou D.
Andrews H.A.
Andronic A.
Angeletti M.
Anguelov V.
Anson C.
Antičić T.
Antinori F.
Antonioli P.
Anwar R.
Apadula N.
Aphecetche L.
Appelshäuser H.
Arcelli S.
Arnaldi R.
Arratia M.
Arsene I.C.
Arslandok M.
Augustinus A.
Averbeck R.
Aziz S.
Azmi M.D.
Badalà A.
Baek Y.W.
Bagnasco S.
Bai X.
Bailhache R.
Bala R.
Baldisseri A.
Ball M.
Balouza S.
Baral R.C.
Barbera R.
Barioglio L.
Barnaföldi G.G.
Barnby L.S.
Barret V.
Bartalini P.
Barth K.
Bartsch E.
Baruffaldi F.
Bastid N.
Basu S.
Batigne G.
Batyunya B.
Batzing P.C.
Bauri D.
Bearden I.G.
Bedda C.
Behera N.K.
Belikov I.
Bellini F.
Bellwied R.
Belyaev V.
Bencedi G.
Beole S.
Bercuci A.
Berdnikov Y.
Berenyi D.
Bertens R.A.
Berzano D.
Besoiu M.G.
Betev L.
Bhasin A.
Bhat I.R.
Bhat M.A.
Bhatt H.
Bhattacharjee B.
Bianchi A.
Budker Institute for Nuclear Physics
Publisher(s)
Springer Science and Business Media Deutschland GmbH
Abstract
The measurement of the production of prompt D0, D+, D*+, and DS+ mesons in proton–lead (p–Pb) collisions at the centre-of-mass energy per nucleon pair of sNN = 5.02 TeV, with an integrated luminosity of 292 ± 11 μb−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) ref- erence 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 RpPb 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 DS+ mesons are also reported. The DS+ 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.
Volume
2019
Issue
12
Language
English
OCDE Knowledge area
Física nuclear
Astronomía
Física de partículas, Campos de la Física
Subjects
Scopus EID
2-s2.0-85076474609
Source
Journal of High Energy Physics
ISSN of the container
10298479
Sponsor(s)
National Science Foundation - 1719759
Science and Technology Facilities Council - 1843572
Sources of information:
Directorio de Producción Científica
Scopus