Direct photon production in p+p collisions at √s=200GeV at midrapidity

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Title:	Direct photon production in p+p collisions at √s=200GeV at midrapidity
Authors:	彭仁傑;Al-Bataineh, H.;Aoki, K.;Asai, J.;Baldisseri, A.;Barish, K. N.;Batsouli, S.;Baumann, C.;Bazilevsky, A.;Berdnikov, A.;Bickley, A. A.;Borel, H.;Boyle, K.;Buesching, H.;Bumazhnov, V.;Chernichenko, S.;Chiu, M.;Chung, P.;Constantin, P.;Csanád, M.;Csörgő, T.;David, G.;Denisov, A.;d’Enterria, D.;Dion, A.;Donadelli, M.;Drapier, O.;Drees, K. A.;En’yo, H.;Eyser, K. O.;Fadem, B.;Fields, D. E.;Finger, M.;Fleuret, F.;Fujiwara, K.;Gosset, J.;Grau, N.;Greene, S. V.;Gunji, T.;Homma, K.;Horaguchi, T.;Ichimiya, R.;Iinuma, H.;Inaba, M.;Ishihara, M.;Isobe, T.;Issah, M.;Ivanischev, D.;Jacak, B. V.;Kamihara, N.;Kapustinsky, J.;Kempel, T.;Kim, D. J.;Kim, E.;Kim, S. H.;Kurita, K.;Lacey, R.;Lai, Y. S.;Lee, K. B.;Leitch, M. J.;Lynch, D.;Makdisi, Y. I.;Masui, H.;Meredith, B.;Nakamura, T.;Nouicer, R.;Oka, M.;Okada, K.;Oskarsson, A.;Park, W. J.;Pate, S. F.;Peresedov, V.;Purwar, A. K.;Riabov, V.;Rolnick, S. D.;Rukoyatkin, P.;Sato, T.;Semenov, A. Yu.;Semenov, V.;Seto, R.;Shibata, T.-A.;Shimomura, M.;Shoji, K.;Soldatov, A.;Sondheim, W. E.;Sorensen, S. P.;Stepanov, M.;Sukhanov, A.;Takagui, E. M.;Tannenbaum, M. J.;Tarján, P.;Torii, H.;Towell, R. S.;Tsuchimoto, Y.;Vrba, V.;Wang, X. R.;Watanabe, Y.;Xie, W.;Ying, J.;Yushmanov, I. E.;Zaudtke, O.
Contributors:	高能與強場物理研究中心
Keywords:	[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex];[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex];FOS: Physical sciences;High Energy Physics - Experiment;High Energy Physics - Experiment (hep-ex);Nuclear Experiment;Nuclear Experiment (nucl-ex)
Date:	2012-10-23
Issue Date:	2026-04-23 12:01:22 (UTC+8)
Publisher:	American Physical Society;American Physical Society (APS)
Abstract:	摘要： The differential cross section for the production of direct photons in p+p collisions at sqrt(s)=200 GeV at midrapidity was measured in the PHENIX detector at the Relativistic Heavy Ion Collider. Inclusive-direct photons were measured in the transverse-momentum range from 5.5--25 GeV/c, extending the range beyond previous measurements. Event structure was studied with an isolation criterion. Next-to-leading-order perturbative-quantum-chromodynamics calculations give a good description of the spectrum. When the cross section is expressed versus x_T, the PHENIX data are seen to be in agreement with measurements from other experiments at different center-of-mass energies. PHENIX Collaboration, 383 authors, 16 pages, 14 figures, 7 tables. Submitted to Phys. Rev. D. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html 出版者： American Physical Society (APS) 出版日期： 2012-10-23 出處： Physical Review D, 2012-10, Vol.86 (7) 識別號： ISSN: 1550-7998 識別號： DOI: 10.1103/physrevd.86.072008 識別號： DOI: 10.48550/arxiv.1205.5533
Appears in Collections:	[Center for High Energy and High Field Physics (CHiP)] journal & Dissertation

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