Multiplicity dependence of the average transverse momentum in pp, p–Pb, and Pb–Pb collisions at the LHC
B. I. AbelevLawrence Livermore National Laboratory, Livermore, CA, United StatesJ. AdamFaculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Prague, Czech RepublicD. AdamováNuclear Physics Institute, Academy of Sciences of the Czech Republic, Řež u Prahy, Czech RepublicA. AdareYale University, New Haven, CT, United StatesM. M. AggarwalPhysics Department, Panjab University, Chandigarh, IndiaG. Aglieri RinellaEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandM. AgnelloPolitecnico di Torino, Turin, ItalyA.G. AgócsWigner Research Centre for Physics, Hungarian Academy of Sciences, Budapest, HungaryA. AgostinelliDipartimento di Fisica e Astronomia dell'Università and Sezione INFN, Bologna, ItalyZ. AhammedVariable Energy Cyclotron Centre, Kolkata, IndiaA. Ahmad MasoodiDepartment of Physics, Aligarh Muslim University, Aligarh, IndiaN. AhmadDepartment of Physics, Aligarh Muslim University, Aligarh, IndiaI. AhmedCOMSATS Institute of Information Technology (CIIT), Islamabad, PakistanSul-Ah AhnKorea Institute of Science and Technology Information, Daejeon, South KoreaS. U. AhnKorea Institute of Science and Technology Information, Daejeon, South KoreaI. AimoDipartimento di Fisica dell'Università and Sezione INFN, Turin, ItalyM. AjazCOMSATS Institute of Information Technology (CIIT), Islamabad, PakistanA. AkindinovInstitute for Theoretical and Experimental Physics, Moscow, RussiaD. AleksandrovRussian Research Centre Kurchatov Institute, Moscow, RussiaB. AlessandroSezione INFN, Turin, ItalyD. AlexandreaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. AliciA. AlkinJ. AlmeaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptT. AltaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptV. AltiniaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptS. AltinpinaraAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptI. AltsybeevaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptC. AndreiaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. AndronicaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptV. AnguelovaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptJ. AnielskiaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptC. AnsonaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptT. AntičićaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptF. AntinoriaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptP. AntonioliaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptL. AphecetcheaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptH. AppelshäuseraAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptN. ArboraAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptS. ArcelliaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. ArendaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptN. ArmestoaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptR. ArnaldiaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptT. AronssonaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptI. C. ArseneaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptM. ArslandokaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. AsryanaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. AugustinusEuropean Organization for Nuclear Research, Geneva, SwitzerlandR. AverbeckaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptT. C. AwesaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptJ. ÄystöaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptM. D. AzmiaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptM. BachaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. BadalàY. W. BaekaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptR. BailhacheaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptR. BalaaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. BaldisseriF. Baltasar Dos Santos PedrosaaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptJ. BánaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptR. C. BaralaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptR. BarberaaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptF. BarileaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptG. G. BarnaföldiaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptL. S. BarnbyaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptV. BarretaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptJ. BartkeaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptM. BasileaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptN. BastidaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptS. BasuaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptB. BathenaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptG. BatigneaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptB. BatyunyaaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptP. C. BatzingaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptC. BaumannaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptI. G. BeardenaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptH. BeckaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptN. K. BeheraaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptI. BelikovaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptF. BelliniaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptR. BellwiedaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptE. Belmont‐MorenoaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptG. BencédiaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptS. BeolèaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptI. BerceanuaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. BercuciaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptY. BerdnikovaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptD. BerényiaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. A. E. BergognonaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptR. A. BertensaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptD. BerzanoaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptL. BetevaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. BhasinaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptA. K. BhatiaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptJ. BhomaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptN. BianchiaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptL. BianchiaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptC. BianchinaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptJ. BielčíkaAcademy of Scientific Research and Technology (ASRT), Cairo, EgyptJ. BielčíkováaAcademy of Scientific Research and Technology (ASRT), Cairo, Egypt
2013en
ABI
Аннотация
The average transverse momentum p T versus the charged-particle multiplicity N ch was measured in p-Pb collisions at a collision energy per nucleon-nucleon pair s NN = 5.02 TeV and in pp collisions at collision energies of s = 0.9, 2.76, and 7 TeV in the kinematic range 0.15 < p T < 10.0 GeV/c and || < 0.3 with the ALICE apparatus at the LHC. These data are compared to results in Pb-Pb collisions at s NN = 2.76 TeV at similar charged-particle multiplicities. In pp and p-Pb collisions, a strong increase of p T with N ch is observed, which is much stronger than that measured in Pb-Pb collisions. For pp collisions, this could be attributed, within a model of hadronizing strings, to multiple-parton interactions and to a final-state color reconnection mechanism. The data in p-Pb and Pb-Pb collisions cannot be described by an incoherent superposition of nucleon-nucleon collisions and pose a challenge to most of the event generators.
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