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Ratio of isolated photon cross sections in p p̄ collisions at √s = 630 and 1800 GeV

  • V. M. Abazov
  • , B. Abbott
  • , A. Abdesselam
  • , M. Abolins
  • , V. Abramov
  • , B. S. Acharya
  • , D. L. Adams
  • , M. Adams
  • , S. N. Ahmed
  • , G. D. Alexeev
  • , A. Alton
  • , G. A. Alves
  • , E. W. Anderson
  • , Y. Arnoud
  • , C. Avila
  • , M. M. Baarmand
  • , V. V. Babintsev
  • , L. Babukhadia
  • , T. C. Bacon
  • , A. Baden
  • B. Baldin, P. W. Balm, S. Banerjee, E. Barberis, P. Baringer, J. Barreto, J. F. Bartlett, U. Bassler, D. Bauer, A. Bean, F. Beaudette, M. Begel, A. Belyaev, S. B. Beri, G. Bernardi, I. Bertram, A. Besson, R. Beuselinck, V. A. Bezzubov, P. C. Bhat, V. Bhatnagar, M. Bhattacharjee, G. Blazey, F. Blekman, S. Blessing, A. Boehnlein, N. I. Bojko, F. Borcherding, K. Bos, T. Bose, A. Brandt, R. Breedon, G. Briskin, R. Brock, G. Brooijmans, A. Bross, D. Buchholz, M. Buehler, V. Buescher, V. S. Burtovoi, J. M. Butler, F. Canelli, W. Carvalho, D. Casey, Z. Casilum, H. Castilla-Valdez, D. Chakraborty, K. M. Chan, S. V. Chekulaev, D. K. Cho, S. Choi, S. Chopra, J. H. Christenson, M. Chung, D. Claes, A. R. Clark, J. Cochran, L. Coney, B. Connolly, W. E. Cooper, D. Coppage, S. Cr-Renaudin, M. A.C. Cummings, D. Cutts, G. A. Davis, K. Davis, K. De, S. J. De Jong, K. Del Signore
  • Universidad de Buenos Aires
  • Centro Brasileiro de Pesquisas Fisicas
  • Rua São Francisco de Xavier
  • Institute of High Energy Physics, Chinese Academy of Sciences
  • Universidad de Los Andes, Colombia
  • Charles University
  • Institute of Physics of the Czech Academy of Sciences
  • Universidad San Francisco de Quito
  • Université Paris-Sud
  • Aix-Marseille Université
  • Institut Pierre Simon Laplace, CNRS and CEA
  • Johannes Gutenberg University
  • Panjab University
  • University of Delhi
  • Tata Institute of Fundamental Research, Mumbai
  • Seoul National University
  • University of Amsterdam
  • Radboud University
  • Institute for Nuclear Physics
  • Joint Institute for Nuclear Research, Dubna
  • Institute for Theoretical and Experimental Physics
  • Moscow State University
  • Kurchatov Institute
  • Lancaster University
  • Imperial College London
  • University of Arizona
  • University of California, Berkeley
  • University of California, Davis
  • California State University, Fresno
  • Long Beach VA and University of California
  • University of California, Riverside
  • Florida State University
  • Fermi National Accelerator Laboratory
  • University of Illinois at Chicago
  • Northern Illinois University
  • Northwestern University
  • Indiana University Bloomington
  • University of Notre Dame
  • Iowa State University
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  • Kansas State University
  • Louisiana Tech University
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  • Boston University
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  • University of Michigan, Ann Arbor
  • Michigan State University
  • University of Nebraska-Lincoln
  • Columbia University
  • University of Rochester
  • Stony Brook University
  • Brookhaven National Laboratory
  • Langston University
  • University of Oklahoma
  • Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
  • University of Texas at Arlington
  • Texas A&M University
  • Rice University
  • University of Virginia
  • University of Washington
  • University of Zurich
  • CINVESTAV-IPN

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

43 Citations (Scopus)

Résumé

The production cross section for isolated photons in pp̄ collisions at s = 630 GeV was measured and compared with that measured at s = 1800 GeV. It was found that the measurement is higher than the theoretical prediction at low E T in the central rapidity region but agrees at all other E T and in the forward rapidity region. Furthermore, it was observed that the difference between data and theory is less significant for the ratio of cross sections, and the theory is consistent with the data over all E T.

langue originaleAnglais
Numéro d'article251805
Pages (de - à)251805/1-251805/7
journalPhysical Review Letters
Volume87
Numéro de publication25
étatPublié - 17 déc. 2001
Modification externeOui

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