Measurement of prompt D-meson production in p-Pb collisions at sqrt(sNN) = 5.02 TeV
B. Abelev
,
A. Baldisseri
(1)
,
H. Borel
(1)
,
J. Castillo Castellanos
(1)
,
G. Conesa Balbastre
(2)
,
J. -L. Charvet
(1)
,
J. Faivre
(2)
,
C. Furget
(2)
,
R. Guernane
(2)
,
S. Kox
(2)
,
J.S. Real
(2)
,
C. Silvestre
(2)
,
R. Vernet
(3)
,
I. Belikov
(4)
,
B. Hippolyte
(4)
,
C. Kuhn
(4)
,
A. Maire
(4)
,
L. Molnar
(4)
,
C. Roy
(4)
,
X. Sanchez Castro
(4)
,
Laurent Aphecetche
(5)
,
Guillaume Batigne
(5)
,
H. Delagrange
(5)
,
B. Erazmus
(5)
,
Magali Estienne
(5)
,
Marie Germain
(5)
,
A. Lardeux
(5)
,
Gines Martinez Garcia
(5)
,
J. Martin Blanco
(5)
,
A. Mas
(5)
,
L. Massacrier
(5)
,
A. Morreale
(5)
,
Philippe Pillot
(5)
,
L. Ronflette
(5)
,
Y. Schutz
(5)
,
Alexandre Shabetai
(5)
,
Diego Stocco
(5)
,
M. Wang
(5)
,
C. Cheskov
(6)
,
B. Cheynis
(6)
,
L. Ducroux
(6)
,
J.-Y. Grossiord
(6)
,
Maxime Guilbaud
(6)
,
R. Tieulent
(6)
,
A. Uras
(6)
,
Y. Zoccarato
(6)
,
Y.W. Baek
(7)
,
V. Barret
(7)
,
N. Bastid
(7)
,
P. Crochet
(7)
,
P. Dupieux
(7)
,
S. Li
(7)
,
X. Lopez
(7)
,
F. Manso
(7)
,
M. Marchisone
(7)
,
S. Porteboeuf-Houssais
(7)
,
P. Rosnet
(7)
,
L. Valencia Palomo
(7)
,
B. Vulpescu
(7)
,
Z. Conesa Del Valle
(8)
,
I. Das
(8)
,
B. Espagnon
(8)
,
C. Hadjidakis
(8)
,
I. Lakomov
(8)
,
C. Suire
(8)
,
J. D. Tapia Takaki
(8)
,
L. Valencia Palomo
(8)
,
H. Pereira da Costa
(1)
,
A. Rakotozafindrabe
(1)
1
IRFU -
Institut de Recherches sur les lois Fondamentales de l'Univers
2 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
3 CC-IN2P3 - Centre de Calcul de l'IN2P3
4 IPHC - Institut Pluridisciplinaire Hubert Curien
5 SUBATECH - Laboratoire SUBATECH Nantes
6 IPNL - Institut de Physique Nucléaire de Lyon
7 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
8 IPNO - Institut de Physique Nucléaire d'Orsay
2 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
3 CC-IN2P3 - Centre de Calcul de l'IN2P3
4 IPHC - Institut Pluridisciplinaire Hubert Curien
5 SUBATECH - Laboratoire SUBATECH Nantes
6 IPNL - Institut de Physique Nucléaire de Lyon
7 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
8 IPNO - Institut de Physique Nucléaire d'Orsay
B. Abelev
- Function : Author
G. Conesa Balbastre
- Function : Author
- PersonId : 737477
- IdHAL : conesa-balbastre-gustavo
- ORCID : 0000-0001-5283-3520
J.S. Real
- Function : Author
- PersonId : 737490
- IdHAL : jean-sebastien-real
- ORCID : 0000-0003-1584-783X
- IdRef : 156873133
C. Roy
- Function : Author
- PersonId : 742351
- IdHAL : christelle-roy
- ORCID : 0000-0001-5920-6271
Laurent Aphecetche
- Function : Author
- PersonId : 2010
- IdHAL : laurent-aphecetche
- ORCID : 0000-0001-7662-3878
- IdRef : 113847653
Guillaume Batigne
- Function : Author
- PersonId : 175820
- IdHAL : guillaume-batigne
- ORCID : 0000-0001-8638-6300
- IdRef : 077207874
Magali Estienne
- Function : Author
- PersonId : 179790
- IdHAL : magali-estienne
- ORCID : 0000-0003-0687-5580
Marie Germain
- Function : Author
- PersonId : 170960
- IdHAL : marie-germain
- ORCID : 0000-0001-7382-1609
- IdRef : 176579958
Gines Martinez Garcia
- Function : Author
- PersonId : 169952
- IdHAL : gines-martinez
- ORCID : 0000-0002-8657-6742
- IdRef : 068952961
Philippe Pillot
- Function : Author
- PersonId : 175815
- IdHAL : ppillot
- ORCID : 0000-0002-9067-0803
Alexandre Shabetai
- Function : Author
- PersonId : 181202
- IdHAL : alexandre-shabetai
- ORCID : 0000-0003-3069-726X
Diego Stocco
- Function : Author
- PersonId : 170966
- IdHAL : diego-stocco
- ORCID : 0000-0002-5377-5163
- IdRef : 204479150
B. Cheynis
- Function : Author
- PersonId : 750577
- IdHAL : brigitte-cheynis
- IdRef : 032215606
Maxime Guilbaud
- Function : Author
- PersonId : 177174
- IdHAL : maxime-guilbaud
- ORCID : 0000-0001-5990-482X
- IdRef : 236157566
Abstract
The pt-differential production cross sections of the prompt charmed mesons D0, D+, D*+ and Ds+ and their charge conjugate in the rapidity interval -0.96 < y_cms < 0.04 were measured in p-Pb collisions at a centre-of-mass energy sqrt(sNN) = 5.02 TeV with the ALICE detector at the LHC. The nuclear modification factor R_pPb, quantifying the D-meson yield in p--Pb collisions relative to the yield in pp collisions scaled by the number of binary nucleon-nucleon collisions, is compatible within the 15-20% uncertainties with unity in the transverse momentum interval 1 < pt < 24 GeV/c. No significant difference among the R_pPb of the four D-meson species is observed. The results are described within uncertainties by theoretical calculations that include initial-state effects. The measurement adds experimental evidence that the modification of the momentum spectrum of D mesons observed in Pb-Pb collisions with respect to pp collisions is due to strong final-state effects induced by hot partonic matter.