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Production of ω mesons in p+ p, d+ Au, Cu+ Cu, and Au+ Au collisions at sqrt [s_ {NN}]= 200 GeV

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1928/20559

Production of ω mesons in p+ p, d+ Au, Cu+ Cu, and Au+ Au collisions at sqrt [s_ {NN}]= 200 GeV

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Title: Production of ω mesons in p+ p, d+ Au, Cu+ Cu, and Au+ Au collisions at sqrt [s_ {NN}]= 200 GeV
Author: Fields, Douglas E.; PHENIX Collaboration; Barnes, P. D.; Boissevain, J. G.; Brooks, M. L.; Burward-Hoy, J. M.; Butsyk, S.; Camacho, C. M.; Constantin, P.; Grim, G.; Jiang, X.; Kapustinsky, J.; Kunde, G. J.; Lee, D. M.; Leitch, M. J.; Liu, H.; Liu, M. X.; McGaughey, P. L.; Moss, J. M.; Norman, B. E.; Palounek, T.; Purwar, A. K.; Sondheim, W. E.; Sullivan, J. P.; Van Hecke, H. W.; Bassalleck, B.; Haegemann, C.; Hobbs, R.; Kotchetkov, D.; Malik, M. D.; Rak, J.; Thomas, T. L.; Younus, I.; Al-Bataineh, H.; Al-Jamel, A.; Armendariz, R.; Brown, D. S.; Dharmawardane, K. V.; Kyle, G. S.; Papavassiliou, V.; Pate, S. F.; Stepanov, M.; Wang, X. R.
Abstract: The PHENIX experiment at the Relativistic Heavy Ion Collider has measured ω meson production via leptonic and hadronic decay channels in p + p, d + Au, Cu + Cu, and Au + Au collisions at √sNN = 200 GeV. The invariant transverse momentum spectra measured in different decay modes give consistent results. Measurements in the hadronic decay channel in Cu + Cu and Au + Au collisions show that ω production has a suppression pattern at high transverse momentum, similar to that of π0 and η in central collisions, but no suppression is observed in peripheral collisions. The nuclear modification factors, RAA, are consistent in Cu + Cu and Au + Au collisions at similar numbers of participant nucleons.
Date: 2011-10-07
Publisher: American Physical Society
Citation: Physical Review C, 84(4): 1-11
Description: http://prc.aps.org/pdf/PRC/v84/i4/e044902
URI: http://hdl.handle.net/1928/20559

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