Maqola

Identified charged hadron production in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:mrow></mml:math>collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:mi>s</mml:mi></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn></mml:mrow></mml:math>and 62.4 GeV

A. AdareUniversity of Colorado, Boulder, Colorado 80309, USAS. AfanasievJoint Institute for Nuclear Research, 141980 Dubna, Moscow Region, RussiaC. AidalaColumbia University, New York, New York 10027 andN. N. AjitanandChemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAY. AkibaRIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USAH. Al-BatainehNew Mexico State University, Las Cruces, New Mexico 88003, USAJ. AlexanderChemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAK. AokiKyoto University, Kyoto 606-8502, JapanL. AphecetcheSUBATECH (Ecole des Mines de Nantes, CNRS-IN2P3, Université de Nantes) Boîte Postale 20722-44307, Nantes, FranceR. ArméndarizNew Mexico State University, Las Cruces, New Mexico 88003, USAS. H. AronsonPhysics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAJ. AsaiRIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USAE. T. AtomssaLaboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS-IN2P3, Route de Saclay, F-91128, Palaiseau, FranceR. AverbeckDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAT. C. AwesOak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USAB. AzmounPhysics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAV. BabintsevIHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, RussiaM. BaiCollider Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAG. BaksayFlorida Institute of Technology, Melbourne, Florida 32901, USAL. BaksayFlorida Institute of Technology, Melbourne, Florida 32901, USAA. BaldisseriDirection des EnergiesK. N. BarishUniversity of California-Riverside, Riverside, California 92521, USAP. D. BarnesLos Alamos National Laboratory, Los Alamos, New Mexico 87545, USAB. BassalleckUniversity of New Mexico, Albuquerque, New Mexico 87131, USAA. Basye/A, HungaryS. BatheUniversity of California-Riverside, Riverside, California 92521, USAS. BatsouliOak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USAV. BaublisPNPI, Petersburg Nuclear Physics Institute, Gatchina, Leningrad region, 188300, RussiaC. BaumannInstitut für Kernphysik, University of Muenster, D-48149 Muenster, GermanyA. BazilevskyPhysics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAS. BelikovPhysics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAR. BennettDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAA. BerdnikovSaint Petersburg State Polytechnic University, Saint Petersburg, 195251 RussiaY. BerdnikovSaint Petersburg State Polytechnic University, Saint Petersburg, 195251 RussiaA. A. BickleyUniversity of Colorado, Boulder, Colorado 80309, USAJ. G. BoissevainLos Alamos National Laboratory, Los Alamos, New Mexico 87545, USAH. BorelCEA Paris-SaclayK. BoyleDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAM. L. BrooksÉcole PolytechniqueH. BueschingPhysics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAV. BumazhnovIHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, RussiaG. BunceRIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USAS. ButsykLos Alamos National Laboratory, Los Alamos, New Mexico 87545, USAC. Muñoz CamachoLos Alamos National Laboratory, Los Alamos, New Mexico 87545, USAS. CampbellDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAB. S. ChangYonsei University, IPAP, Seoul 120-749, KoreaW. C. ChangInstitute of Physics, Academia Sinica, Taipei 11529, TaiwanJ. L. CharvetDapnia, CEA Saclay, F-91191, Gif-sur-Yvette, FranceS. ChernichenkoIHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, RussiaJ. ChibaKEK, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, JapanC. Y.Columbia University, New York, New York 10027 and Nevis Laboratories, Irvington, New York 10533, USAM. ChiuUniversity of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USAI. J. ChoiYonsei University, IPAP, Seoul 120-749, KoreaR. K. ChoudhuryBhabha Atomic Research Centre, Bombay 400 085, IndiaT. ChujoInstitute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305, JapanP. ChungChemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAA. ChurynIHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, RussiaV. CiancioloOak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USAZ. H. CitronDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAC. R. ClevenGeorgia State University, Atlanta, Georgia 30303, USAB. ColeColumbia University, New York, New York 10027 andM. P. CometsCentre National de la Recherche ScientifiqueP. ConstantinLos Alamos National Laboratory, Los Alamos, New Mexico 87545, USAM. CsanádELTE, Eötvös Loránd University, H-1117 Budapest, Pázmány P. s. 1/A, HungaryT. CsörgőHungarian Academy of SciencesT. DahmsDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAS. DairakuKyoto University, Kyoto 606-8502, JapanK. DasFlorida State University, Tallahassee, Florida 32306, USAG. DavidPhysics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAM. B. DeatonAbilene Christian University, Abilene, Texas 79699, USAK. DehmeltFlorida Institute of Technology, Melbourne, Florida 32901, USAH. DelagrangeLaboratoire de Physique Subatomique et des Technologies AssociéesA. DenisovIHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, RussiaD. d’EnterriaColumbia University, New York, New York 10027 and Nevis Laboratories, Irvington, New York 10533, USAA. DeshpandeStony Brook UniversityE. J. DesmondPhysics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAO. DietzschInstituto de Física, Universidade de São Paulo, Caixa Postal 66318, São Paulo CEP 05315-970, BrazilA. DionDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAM. DonadelliInstituto de Física, Universidade de São Paulo, Caixa Postal 66318, São Paulo CEP 05315-970, BrazilO. DrapierLaboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS-IN2P3, Route de Saclay, F-91128, Palaiseau, FranceA. DreesDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAK. A. DreesCollider Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAA. K. DubeyWeizmann Institute, Rehovot 76100, IsraelA. DurumIHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, RussiaD. DuttaBhabha Atomic Research Centre, Bombay 400 085, IndiaV. DzhordzhadzeUniversity of California–Riverside, Riverside, California 92521, USAY. V. EfremenkoOak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USAJ. EgdemirDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USAF. EllinghausUniversity of Colorado, Boulder, Colorado 80309, USAW. S. EmamUniversity of California–Riverside, Riverside, California 92521, USAT. EngelmoreColumbia University, New York, New York 10027 and Nevis Laboratories, Irvington, New York 10533, USAA. EnokizonoLawrence Livermore National Laboratory, Livermore, California 94550, USAH. En’yoRIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, JapanS. EsumiInstitute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305, JapanO. EyserUniversity of California–Riverside, Riverside, California 92521, USAB. FademMuhlenberg College, Allentown, Pennsylvania 18104-5586, USAD. E. FieldsUniversity of New Mexico, Albuquerque, New Mexico 87131, USAM. FingerJoint Institute for Nuclear Research, 141980 Dubna, Moscow Region, RussiaM. FingerJoint Institute for Nuclear Research, 141980 Dubna, Moscow Region, RussiaF. FleuretLaboratoire Leprince-Ringuet

2011lv

Ochiq kirishBronza

ABI

Annotatsiya

Transverse momentum distributions and yields for pi(+/-), K(+/-), p, and (p) over bar in p + p collisions at root s = 200 and 62.4 GeV at midrapidity are measured by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC). These data provide important baseline spectra for comparisons with identified particle spectra in heavy ion collisions at RHIC. We present the inverse slope parameter T(inv), mean transverse momentum < p(T)>, and yield per unit rapidity dN/dy at each energy, and compare them to other measurements at different root s in p + p and p + (p) over bar collisions. We also present the scaling properties such as m(T) scaling and x(T) scaling on the p(T) spectra between different energies. To discuss the mechanism of the particle production in p + p collisions, the measured spectra are compared to next-to-leading-order or next-to-leading-logarithmic perturbative quantum chromodynamics calculations.

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DOI: 10.1103/physrevc.83.064903

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