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Ratio of isolated photon cross sections in $p\bar p$ collisions at $\sqrt s$ = 630 and 1800 GeV
Authors :
Abazov, V.M. Abbott, B. Abdesselam, Abdelmalek Abolins, M. Abramov, V. Acharya, B.S. Adams, D.L. Adams, M. Ahmed, S.N. Alexeev, G.D. Alton, A. Alves, G.A. Amos, N. Anderson, E.W. Arnoud, Y. Avila, C. Baarmand, M.M. Babintsev, V.V. Babukhadia, L. Bacon, T.C. Baden, A. Baldin, B. Balm, P.W. Banerjee, S. Barberis, E. Baringer, P. Barreto, J. Bartlett, J.F. Bassler, U. Bauer, D. Bean, A. Beaudette, F. Begel, M. Belyaev, A. Beri, S.B. Bernardi, G. Bertram, I. Besson, A. Beuselinck, R. Bezzubov, V.A. Bhat, P.C. Bhatnagar, V. Bhattacharjee, M. Blazey, G. Blekman, F. Blessing, S. Boehnlein, A. Bojko, N.I. Borcherding, F. Bos, K. Bose, T. Brandt, A. Breedon, R. Briskin, G. Brock, R. Brooijmans, G. Bross, A. Buchholz, D. Buehler, M. Buescher, V. Burtovoi, V.S. Butler, J.M. Canelli, F. Carvalho, W. Casey, D. Casilum, Z. Castilla-Valdez, H. Chakraborty, D. Chan, K.M. Chekulaev, S.V. Cho, D.K. Choi, S. Chopra, S. Christenson, J.H. Chung, M. Claes, D. Clark, A.R. Cochran, J. Coney, L. Connolly, B. Cooper, W.E. Coppage, D. Crepe-Renaudin, S. Cutts, D. Davis, G.A. Davis, K. De, K. De Jong, S.J. Del Signore, K. Demarteau, M. Demina, R. Demine, P. Denisov, D. Denisov, S.P. Desai, S. Diehl, H.T. Diesburg, M. Doulas, S. Ducros, Y. Dudko, L.V. Duensing, S. Duflot, L. Dugad, S.R. Duperrin, A. Dyshkant, A. Edmunds, D. Ellison, J. Elvira, V.D. Engelmann, R. Eno, S. Eppley, G. Ermolov, P. Eroshin, O.V. Estrada, J. Evans, H. Evdokimov, V.N. Fahland, T. Feher, S. Fein, D. Ferbel, T. Filthaut, F. Fisk, H.E. Fisyak, Y. Flattum, E. Fleuret, F. Fortner, M. Fox, H. Frame, K.C. Fu, S. Fuess, S. Gallas, E. Galyaev, A.N. Gao, M. Gavrilov, V. Genik II, R.J. Genser, K. Gerber, C.E. Gershtein, Y. Gilmartin, R. Ginther, G. Gomez, B. Gomez, G. Goncharov, P.I. Gonzalez Solis, J.L. Gordon, H. Goss, L.T. Gounder, K. Goussiou, A. Graf, N. Graham, G. Grannis, P.D. Green, J.A. Greenlee, H. Greenwood, Z.D. Grinstein, S. Groer, L. Gruenendahl, S. Gupta, Anupam Gurzhiev, S.N. Gutierrez, G. Gutierrez, P. Hadley, N.J. Haggerty, H. Hagopian, S. Hagopian, V. Hall, R.E. Hanlet, P. Hansen, Scott Hauptman, J.M. Hays, C. Hebert, Christian Hedin, D. Heinmiller, J.M. Heinson, A.P. Heintz, U. Heuring, T. Hildreth, M.D. Hirosky, R. Hobbs, J.D. Hoeneisen, B. Huang, Yue Illingworth, R. Ito, A.S. Jaffre, M. Jain, S. Jesik, R. Johns, K. Johnson, M. Jonckheere, A. Joestlein, H. Juste, A. Kahl, W. Kahn, S. Kajfasz, E. Kalinin, A.M. Karmanov, D. Karmgard, D. Kehoe, R. Khanov, A. Kharchilava, A. Kim, S.K. Klima, B. Knuteson, B. Ko, W. Kohli, J.M. Kostritskiy, A.V. Kotcher, J. Kothari, B. Kotwal, A.V. Kozelov, A.V. Kozlovsky, E.A. Krane, J. Krishnaswamy, M.R. Krivkova, P. Krzywdzinski, S. Kubantsev, M. Kuleshov, S. Kulik, Y. Kunori, S. Kupco, A. Kuznetsov, V.E. Landsberg, G. Lee, W.M. Leflat, A. Leggett, C. Lehner, F. Li, J. Li, Q.Z. Li, Xiaojian Lima, J.G.R. Lincoln, D. Linn, S.L. Linnemann, J. Lipton, R. Lucotte, A. Lueking, L. Lundstedt, C. Luo, C. Maciel, A.K.A. Madaras, R.J. Malyshev, V.L. Manankov, V. Mao, H.S. Marshall, T. Martin, M.I. Mauritz, K.M. May, B. Mayorov, A.A. McCarthy, R. McMahon, T. Melanson, H.L. Merkin, M. Merritt, K.W. Miao, C. Miettinen, H. Mihalcea, D. Mishra, C.S. Mokhov, N. Mondal, N.K. Montgomery, H.E. Moore, R.W. Mostafa, M. Da Motta, H. Nagy, E. Nang, F. Narain, M. Narasimham, V.S. Naumann, N.A. Neal, H.A. Negret, J.P. Negroni, S. Nunnemann, T. O'Neil, D. Oguri, V. Olivier, B. Oshima, N. Padley, P. Pan, L.J. Papageorgiou, K. Para, A. Parashar, N. Partridge, R. Parua, N. Paterno, M. Patwa, A. Pawlik, B. Perkins, J. Peters, M. Peters, O. Petroff, P. Piegaia, R. Pope, B.G. Popkov, E. Prosper, H.B. Protopopescu, S. Przybycien, M.B. Qian, J. Raja, R. Rajagopalan, S. Ramberg, E. Rapidis, P.A. Reay, N.W. Reucroft, S. Ridel, M. Rijssenbeek, M. Rizatdinova, F. Rockwell, T. Roco, M. Royon, C. Rubinov, P. Ruchti, R. Rutherfoord, J. Sabirov, B.M. Sajot, G. Santoro, A. Sawyer, L. Schamberger, R.D. Schellman, H. Schwartzman, A. Sen, N. Shabalina, E. Shivpuri, R.K. Shpakov, D. Shupe, M. Sidwell, R.A. Simak, V. Singh, H. Singh, J.B. Sirotenko, V. Slattery, P. Smith, E. Smith, R.P. Snihur, R. Snow, G.R. Snow, J. Snyder, S. Solomon, J. Song, Y. Sorin, V. Sosebee, M. Sotnikova, N. Soustruznik, K. Souza, M. Stanton, N.R. Steinbrueck, G. Stephens, R.W. Stichelbaut, F. Stoker, D. Stolin, V. Stone, A. Stoyanova, D.A. Strang, M.A. Strauss, M. Strovink, M. Stutte, L. Sznajder, A. Talby, M. Taylor, W. Tentindo-Repond, S. Tripathi, S.M. Trippe, T.G. Turcot, A.S. Tuts, P.M. Vaniev, V. Van Kooten, R. Varelas, N. Vertogradov, L.S. Villeneuve-Seguier, F. Volkov, A.A. Vorobiev, A.P. Wahl, H.D. Wang, H. Wang, Z.M. Warchol, J. Watts, G. Wayne, M. Weerts, H. White, A. White, J.T. Whiteson, D. Wightman, J.A. Wijngaarden, D.A. Willis, S. Wimpenny, S.J. Womersley, J. Wood, D.R. Xu, Q. Yamada, R. Yamin, P. Yasuda, T. Yatsunenko, Y.A. Yip, K. Youssef, S. Yu, J. Yu, Z. Zanabria, M. Zhang, X. Zheng, H. Zou, B. Zhou, Z. Zielinski, M. Zieminska, D. Zieminski, A. Zutshi, V. Zverev, E.G. Zylberstejn, A. Laboratoire de l'Accélérateur Linéaire (LAL) Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Physique Subatomique et de Cosmologie (LPSC) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS) Centre de Physique des Particules de Marseille (CPPM) Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) D0 Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11) Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS) Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Source :
Physical Review Letters, Physical Review Letters, 2001, 87, 251805 (7 p.). ⟨10.1103/PhysRevLett.87.251805⟩, Physical Review Letters, American Physical Society, 2001, 87, 251805 (7 p.). ⟨10.1103/PhysRevLett.87.251805⟩
Publication Year :
2001
Publisher :
HAL CCSD, 2001.
Abstract
The inclusive cross section for production of isolated photons has been measured in \pbarp collisions at $\sqrt{s} = 630$ GeV with the \D0 detector at the Fermilab Tevatron Collider. The photons span a transverse energy range ($E_T$) from 7-49 GeV and have pseudorapidity $|\eta| 2.5$. This preliminary measurement is combined with our previous result at $\sqrt{s} = 1800$ GeV to form a ratio of the cross sections. Comparison of next-to-leading order QCD with the measured cross section at 630 GeV and ratio of cross sections show satisfactory agreement in most of the $E_T$ range.
Details
Language :
English
ISSN :
00319007 and 10797114
Database :
OpenAIRE
Journal :
Physical Review Letters, Physical Review Letters, 2001, 87, 251805 (7 p.). ⟨10.1103/PhysRevLett.87.251805⟩, Physical Review Letters, American Physical Society, 2001, 87, 251805 (7 p.). ⟨10.1103/PhysRevLett.87.251805⟩
Accession number :
edsair.dedup.wf.001..86587c7c21b43cfd5cc1b5993c912e19