Multiplicity dependence of two-particle azimuthal correlations in pp collisions at the LHC
B. Abelev
,
N. Arbor
(1)
,
G. Conesa Balbastre
(1)
,
J. Faivre
(1)
,
C. Furget
(1)
,
R. Guernane
(1)
,
S. Kox
(1)
,
J.S. Real
(1)
,
C. Silvestre
(1)
,
R. Vernet
(2)
,
I. Belikov
(3)
,
B. Hippolyte
,
C. Kuhn
(3)
,
L. Molnar
(3)
,
C. Roy
(3)
,
X. Sanchez Castro
(3)
,
S. Senyukov
(3)
,
Laurent Aphecetche
(4)
,
Guillaume Batigne
(4)
,
E. Bergognon
(4)
,
M. Bregant
(4)
,
H. Delagrange
(4)
,
B. Erazmus
(4)
,
Magali Estienne
(4)
,
Marie Germain
(4)
,
A. Lardeux
(4)
,
J. Martin Blanco
(4)
,
Gines Martinez Garcia
(4)
,
A. Mas
(4)
,
L. Massacrier
(4)
,
Philippe Pillot
(4)
,
Y. Schutz
(4)
,
Alexandre Shabetai
(4)
,
Diego Stocco
(4)
,
Y.W. Baek
(5)
,
V. Barret
(5)
,
N. Bastid
(5)
,
P. Crochet
(5)
,
P. Dupieux
(5)
,
R. Ichou
(5)
,
S. Li
(5)
,
X. Lopez
(5)
,
F. Manso
(5)
,
M. Marchisone
(5)
,
S. Porteboeuf-Houssais
(5)
,
P. Rosnet
(5)
,
B. Vulpescu
(5)
,
X. Zhang
(5)
,
I. Das
,
B. Espagnon
(6)
,
C. Hadjidakis
(6)
,
I. Lakomov
(6)
,
C. Suire
(6)
,
J.D. Tapia Takaki
(6)
,
L. Valencia Palomo
(6)
1
LPSC -
Laboratoire de Physique Subatomique et de Cosmologie
2 CC-IN2P3 - Centre de Calcul de l'IN2P3
3 IPHC - Institut Pluridisciplinaire Hubert Curien
4 SUBATECH - Laboratoire SUBATECH Nantes
5 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
6 IPNO - Institut de Physique Nucléaire d'Orsay
2 CC-IN2P3 - Centre de Calcul de l'IN2P3
3 IPHC - Institut Pluridisciplinaire Hubert Curien
4 SUBATECH - Laboratoire SUBATECH Nantes
5 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
6 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
B. Hippolyte
- Function : Author
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
S. Porteboeuf-Houssais
- Function : Author
- PersonId : 1350722
- IdHAL : sarah-porteboeuf
- ORCID : 0000-0002-2646-6189
I. Das
- Function : Author
Abstract
We present the measurements of particle pair yields per trigger particle obtained from di-hadron azimuthal correlations in pp collisions at sqrt(s) = 0.9, 2.76, and 7 TeV recorded with the ALICE detector. The yields are studied as a function of the charged particle multiplicity. Taken together with the single particle yields the pair yields provide information about parton fragmentation at low transverse momenta, as well as on the contribution of multiple parton interactions to particle production. Data are compared to calculations using the PYTHIA6, PYTHIA8, and PHOJET event generators.