Transverse momentum spectra of charged particles in proton–proton collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>900</mml:mn><mml:mtext> GeV</mml:mtext></mml:math> with ALICE at the LHC
K. AamodtDepartment of Physics, University of Oslo, Oslo, NorwayN. AbelKirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GermanyU. AbeysekaraPhysics Department, Creighton University, Omaha, NE, United StatesA. Abrahantes QuintanaCentro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN), Havana, CubaA. AbramyanYerevan Physics Institute, Yerevan, ArmeniaD. AdamováNuclear Physics Institute, Academy of Sciences of the Czech Republic, Řež u Prahy, Czech RepublicM. M. AggarwalPhysics Department, Panjab University, Chandigarh, IndiaG. Aglieri RinellaEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandA. G. AgocsKFKI Research Institute for Particle and Nuclear Physics, Hungarian Academy of Sciences, Budapest, HungaryS. Aguilar SalazarInstituto de Física, Universidad Nacional Autónoma de México, Mexico City, MexicoZ. AhammedVariable Energy Cyclotron Centre, Kolkata, IndiaArshad AhmadDepartment of Physics Aligarh Muslim University, Aligarh, IndiaN. AhmadDepartment of Physics Aligarh Muslim University, Aligarh, IndiaS. U. AhnGangneung-Wonju National University, Gangneung, South KoreaR. AkimotoUniversity of Tokyo, Tokyo, JapanA. AkindinovInstitute for Theoretical and Experimental Physics, Moscow, RussiaD. AleksandrovRussian Research Centre Kurchatov Institute, Moscow, RussiaB. AlessandroSezione INFN, Turin, ItalyR. Alfaro MolinaInstituto de Física, Universidad Nacional Autónoma de México, Mexico City, MexicoA. AliciDipartimento di Fisica dell'Università and Sezione INFN, Bologna, ItalyE. Almaráz AviñaUniversidad Nacional Autónoma de México, Mexico City, MexicoJ. AlmeUniversity of Bergen, Bergen, NorwayT. AltHeidelberg University, Heidelberg, GermanyV. AltiniRussian Research Centre Kurchatov Institute, Moscow, RussiaS. AltinpinarGSI Helmholtz Centre for Heavy Ion Research, Darmstadt, GermanyC. AndreiDipartimento di Fisica dell'Università and Sezione INFN, Bologna, ItalyA. AndronicGSI Helmholtz Centre for Heavy Ion Research, Darmstadt, GermanyG. AnelliEuropean Organization for Nuclear Research, Geneva, SwitzerlandV. AngelovHeidelberg University, Heidelberg, GermanyC. AnsonThe Ohio State University, Columbus, United StatesT. AntičićUniversity of Tokyo, Tokyo, JapanF. AntinoriEuropean Organization for Nuclear Research, Geneva, SwitzerlandS. AntinoriSezione INFN, Turin, ItalyK. AntipinGoethe University Frankfurt, Frankfurt am Main, GermanyD. AntończykGoethe University Frankfurt, Frankfurt am Main, GermanyP. AntonioliA. AnzoUniversidad Nacional Autónoma de México, Mexico City, MexicoL. AphecetcheNantes Université, Nantes, FranceH. AppelshäuserGoethe University Frankfurt, Frankfurt am Main, GermanyS. ArcelliSezione INFN, Turin, ItalyR. ArceoUniversidad Nacional Autónoma de México, Mexico City, MexicoA. ArendGoethe University Frankfurt, Frankfurt am Main, GermanyN. ArmestoUniversidade de Santiago de Compostela, Santiago de Compostela, SpainR. ArnaldiInstituto de Física, Universidad Nacional Autónoma de México, Mexico City, MexicoT. AronssonYale University, New Haven, United StatesI. C. ArseneUniversity of Oslo, Oslo, NorwayA. AsryanSt Petersburg University, Saint Petersburg, RussiaA. AugustinusEuropean Organization for Nuclear Research, Geneva, SwitzerlandR. AverbeckGSI Helmholtz Centre for Heavy Ion Research, Darmstadt, GermanyT. C. AwesOak Ridge National Laboratory, Oak Ridge, United StatesJ. ÄystöUniversity of Helsinki, Helsinki, FinlandM. D. AzmiAligarh Muslim University, Aligarh, IndiaS. BablokUniversity of Bergen, Bergen, NorwayM. BachGoethe University Frankfurt, Frankfurt am Main, GermanyA. BadalàY. W. BaekGangneung–Wonju National University, Gangneung, South KoreaS. BagnascoSezione INFN, Turin, ItalyR. BailhacheGSI Helmholtz Centre for Heavy Ion Research, Darmstadt, GermanyR. BalaUniversity of Turin, Turin, ItalyA. BaldisseriA. BalditUniversité Clermont Auvergne, Clermont-Ferrand, FranceJ. BánSlovak Academy of Sciences, Bratislava, SlovakiaR. BarberaUniversity of Catania, Catania, ItalyG. G. BarnaföldiHungarian Academy of Sciences, Budapest, HungaryL. S. BarnbyUniversity of Birmingham, Birmingham, United KingdomV. BarretUniversité Clermont Auvergne, Clermont-Ferrand, FranceJ. BartkePolish Academy of Sciences, Warsaw, PolandF. BarileInstituto de Física, Universidad Nacional Autónoma de México, Mexico City, MexicoM. BasileInstituto de Física, Universidad Nacional Autónoma de México, Mexico City, MexicoV. BasmanovRussian Research Centre Kurchatov Institute, Moscow, RussiaN. BastidUniversité Clermont Auvergne, Clermont-Ferrand, FranceB. BathenUniversity of Münster, Münster, GermanyG. BatigneNantes Université, Nantes, FranceB. BatyunyaJoint Institute for Nuclear Research, Dubna, RussiaC. BaumannUniversity of Münster, Münster, GermanyI. G. BeardenUniversity of Copenhagen, Copenhagen, DenmarkBruce BeckerSezione INFN, Turin, ItalyI. BelikovUniversité de Strasbourg, Strasbourg, FranceR. BellwiedWayne State University, Detroit, United StatesE. MorenoUniversidad Nacional Autónoma de México, Mexico City, MexicoA. BelogianniNational and Kapodistrian University of Athens, Athens, GreeceL. BenhabibNantes Université, Nantes, FranceS. BeolèUniversity of Turin, Turin, ItalyI. BerceanuDipartimento di Fisica dell'Università and Sezione INFN, Bologna, ItalyA. BercuciGSI Helmholtz Centre for Heavy Ion Research, Darmstadt, GermanyE. BerdermannGSI Helmholtz Centre for Heavy Ion Research, Darmstadt, GermanyY. BerdnikovYerevan Physics Institute, Yerevan, ArmeniaL. BetevEuropean Organization for Nuclear Research, Geneva, SwitzerlandA. BhasinUniversity of Jammu, Jammu, IndiaA. K. BhatiPanjab University, Chandigarh, IndiaL. BianchiUniversity of Turin, Turin, ItalyN. BianchiInstituto de Física, Universidad Nacional Autónoma de México, Mexico City, MexicoC. BianchinUniversity of Padua, Padua, ItalyJ. BielčíkCzech Technical University in Prague, Prague, CzechiaJ. BielčíkováCzech Academy of Sciences, Prague, CzechiaA. BilandzicL. BimbotUniversité Paris-Sud, Orsay, FranceE. BiolcatiUniversity of Turin, Turin, ItalyAurélien BlancUniversité Clermont Auvergne, Clermont-Ferrand, FranceF. BlancoUniversity of Catania, Catania, Italy
2010lv
ABI
Annotatsiya
The inclusive charged particle transverse momentum distribution is measured in proton–proton collisions at s=900 GeV at the LHC using the ALICE detector. The measurement is performed in the central pseudorapidity region (|η|<0.8) over the transverse momentum range 0.15<pT<10 GeV/c. The correlation between transverse momentum and particle multiplicity is also studied. Results are presented for inelastic (INEL) and non-single-diffractive (NSD) events. The average transverse momentum for |η|<0.8 is 〈pT〉INEL=0.483±0.001 (stat.)±0.007 (syst.)GeV/c and 〈pT〉NSD=0.489±0.001 (stat.)±0.007 (syst.)GeV/c, respectively. The data exhibit a slightly larger 〈pT〉 than measurements in wider pseudorapidity intervals. The results are compared to simulations with the Monte Carlo event generators PYTHIA and PHOJET.
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