Measurement of neutral mesons in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math>collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>GeV</mml:mi></mml:math>and scaling properties of hadron production
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 and Nevis Laboratories, Irvington, New York 10533, USAN. N. AjitanandChemistry Department, Stony Brook University, Stony Brook, SUNY, 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, Stony Brook, SUNY, New York 11794-3400, USAK. AokiKyoto University, Kyoto 606-8502, JapanL. AphecetcheSUBATECH (Ecole des Mines de Nantes, CNRS-IN2P3, Université de Nantes) BP 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, 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. BaldisseriDapnia, CEA Saclay, F-91191, Gif-sur-Yvette, FranceK. 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. BasyeAbilene Christian University, Abilene, Texas 79699, USAS. 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, USAA. BerdnikovSaint Petersburg State Polytechnic University, St. Petersburg, RussiaY. BerdnikovSaint Petersburg State Polytechnic University, St. Petersburg, RussiaA. A. BickleyUniversity of Colorado, Boulder, Colorado 80309, USAJ. G. BoissevainLos Alamos National Laboratory, Los Alamos, New Mexico 87545, USAH. BorelDapnia, CEA Saclay, F-91191, Gif-sur-Yvette, FranceK. BoyleDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794, USAM. L. BrooksLos Alamos National Laboratory, Los Alamos, New Mexico 87545, USAH. 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. BuncePhysics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAS. ButsykDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794, 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, 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. ChiColumbia 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, Stony Brook, SUNY, 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, USAC. R. ClevenGeorgia State University, Atlanta, Georgia 30303, USAB. ColeColumbia University, New York, New York 10027 and Nevis Laboratories, Irvington, New York 10533, USAM. P. CometsIPN-Orsay, Universite Paris Sud, CNRS-IN2P3, BP1, F-91406, Orsay, FranceP. ConstantinLos Alamos National Laboratory, Los Alamos, New Mexico 87545, USAM. CsanádELTE, Eötvös Loránd University, H-1117 Budapest, Pázmány P.s. 1/A, HungaryT. CsörgőKFKI Research Institute for Particle and Nuclear Physics of the Hungarian Academy of Sciences (MTA KFKI RMKI), H-1525 Budapest 114, P.O. Box 49, Budapest, HungaryT. DahmsDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794, 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. DelagrangeSUBATECH (Ecole des Mines de Nantes, CNRS-IN2P3, Université de Nantes) BP 20722 - 44307, Nantes, FranceA. 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. DeshpandeDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794, USAE. J. DesmondPhysics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USAO. DietzschUniversidade de São Paulo, Instituto de Física, Caixa Postal 66318, São Paulo CEP05315-970, BrazilA. DionDepartment of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794, USAM. DonadelliUniversidade de São Paulo, Instituto de Física, Caixa Postal 66318, São Paulo CEP05315-970, 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, 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, RussiaDipanwita 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, 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 BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USAS. 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. FieldsRIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USAM. FingerCharles University, Ovocný trh 5, Praha 1, 116 36, Prague, Czech RepublicM. FingerCharles University, Ovocný trh 5, Praha 1, 116 36, Prague, Czech RepublicF. FleuretLaboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS-IN2P3, Route de Saclay, F-91128, Palaiseau, France
2011lv
ABI
Аннотация
The PHENIX experiment at the Relativistic Heavy Ion Collider has measured the invariant differential cross section for production of ${K}_{S}^{0}$, $\ensuremath{\omega}$, ${\ensuremath{\eta}}^{\ensuremath{'}}$, and $\ensuremath{\phi}$ mesons in $p+p$ collisions at $\sqrt{s}=200\text{ }\text{ }\mathrm{GeV}$. Measurements of $\ensuremath{\omega}$ and $\ensuremath{\phi}$ production in different decay channels give consistent results. New results for the $\ensuremath{\omega}$ are in agreement with previously published data and extend the measured ${p}_{T}$ coverage. The spectral shapes of all hadron transverse momentum distributions measured by PHENIX are well described by a Tsallis distribution functional form with only two parameters, $n$ and $T$, determining the high-${p}_{T}$ and characterizing the low-${p}_{T}$ regions of the spectra, respectively. The values of these parameters are very similar for all analyzed meson spectra, but with a lower parameter $T$ extracted for protons. The integrated invariant cross sections calculated from the fitted distributions are found to be consistent with existing measurements and with statistical model predictions.
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