Ratio of isolated photon cross sections in pp macro collisions at square root of 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; N Amos; 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 Crépé-Renaudin; M A Cummings; D Cutts; G A Davis; K Davis; K De; S J de Jong; K Del Signore; M Demarteau; R Demina; P Demine; D Denisov; S P Denisov; S Desai; H T Diehl; M Diesburg; S Doulas; Y Ducros; L V Dudko; S Duensing; L Duflot; S R Dugad; A Duperrin; A Dyshkant; D Edmunds; J Ellison; V D Elvira; R Engelmann; S Eno; G Eppley; P Ermolov; O V Eroshin; J Estrada; H Evans; V N Evdokimov; T Fahland; S Feher; D Fein; T Ferbel; F Filthaut; H E Fisk; Y Fisyak; E Flattum; F Fleuret; M Fortner; H Fox; K C Frame; S Fu; S Fuess; E Gallas; A N Galyaev; M Gao; V Gavrilov; R J Genik 2nd; K Genser; C E Gerber; Y Gershtein; R Gilmartin; G Ginther; B Gómez; G Gómez; P I Goncharov; J L González Solís; H Gordon; L T Goss; K Gounder; A Goussiou; N Graf; G Graham; P D Grannis; J A Green; H Greenlee; Z D Greenwood; S Grinstein; L Groer; S Grünendahl; A Gupta; S N Gurzhiev; G Gutierrez; P Gutierrez; N J Hadley; H Haggerty; S Hagopian; V Hagopian; R E Hall; P Hanlet; S Hansen; J M Hauptman; C Hays; C Hebert; D Hedin; J M Heinmiller; A P Heinson; U Heintz; T Heuring; M D Hildreth; R Hirosky; J D Hobbs; B Hoeneisen; Y Huang; R Illingworth; A S Ito; M Jaffré; S Jain; R Jesik; K Johns; M Johnson; A Jonckheere; H Jöstlein; A Juste; W Kahl; S Kahn; E Kajfasz; A M Kalinin; D Karmanov; D Karmgard; R Kehoe; A Khanov; A Kharchilava; S K Kim; B Klima; B Knuteson; W Ko; J M Kohli; A V Kostritskiy; J Kotcher; B Kothari; A V Kotwal; A V Kozelov; E A Kozlovsky; J Krane; M R Krishnaswamy; P Krivkova; S Krzywdzinski; M Kubantsev; S Kuleshov; Y Kulik; S Kunori; A Kupco; V E Kuznetsov; G Landsberg; W M Lee; A Leflat; C Leggett; F Lehner; J Li; Q Z Li; X Li; J G Lima; D Lincoln; S L Linn; J Linnemann; R Lipton; A Lucotte; L Lueking; C Lundstedt; C Luo; A K Maciel; R J Madaras; V L Malyshev; V Manankov; H S Mao; T Marshall; M I Martin; K M Mauritz; B May; A A Mayorov; R McCarthy; T McMahon; H L Melanson; M Merkin; K W Merritt; C Miao; H Miettinen; D Mihalcea; C S Mishra; N Mokhov; N K Mondal; H E Montgomery; R W Moore; M Mostafa; H da Motta; E Nagy; F Nang; M Narain; V S Narasimham; N A Naumann; H A Neal; J P Negret; S Negroni; T Nunnemann; D O'Neil; V Oguri; B Olivier; N Oshima; P Padley; L J Pan; K Papageorgiou; A Para; N Parashar; R Partridge; N Parua; M Paterno; A Patwa; B Pawlik; J Perkins; O Peters; P Pétroff; R Piegaia; B G Pope; E Popkov; H B Prosper; S Protopopescu; M B Przybycien; J Qian; R Raja; S Rajagopalan; E Ramberg; P A Rapidis; N W Reay; S Reucroft; M Ridel; M Rijssenbeek; F Rizatdinova; T Rockwell; M Roco; C Royon; P Rubinov; R Ruchti; J Rutherfoord; B M Sabirov; G Sajot; A Santoro; L Sawyer; R D Schamberger; H Schellman; A Schwartzman; N Sen; E Shabalina; R K Shivpuri; D Shpakov; M Shupe; R A Sidwell; V Simak; H Singh; J B Singh; V Sirotenko; P Slattery; E Smith; R P Smith; R Snihur; G R Snow; J Snow; S Snyder; J Solomon; Y Song; V Sorín; M Sosebee; N Sotnikova; K Soustruznik; M Souza; N R Stanton; G Steinbrück; R W Stephens; F Stichelbaut; D Stoker; V Stolin; A Stone; D A Stoyanova; M A Strang; M Strauss; M Strovink; L Stutte; A Sznajder; M Talby; W Taylor; S Tentindo-Repond; S M Tripathi; T G Trippe; A S Turcot; P M Tuts; V Vaniev; R Van Kooten; N Varelas; L S Vertogradov; F Villeneuve-Seguier; A A Volkov; A P Vorobiev; H D Wahl; H Wang; Z M Wang; J Warchol; G Watts; M Wayne; H Weerts; A White; J T White; D Whiteson; J A Wightman; D A Wijngaarden; S Willis; S J Wimpenny; J Womersley; D R Wood; Q Xu; R Yamada; P Yamin; T Yasuda; Y A Yatsunenko; K Yip; S Youssef; J Yu; Z Yu; M Zanabria; X Zhang; H Zheng; B Zhou; Z Zhou; M Zielinski; D Zieminska; A Zieminski; V Zutshi; E G Zverev; A Zylberstejn; D0 Collaboration

doi:10.1103/PhysRevLett.87.251805

Ratio of isolated photon cross sections in pp macro collisions at square root of s = 630 and 1800 GeV

Phys Rev Lett. 2001 Dec 17;87(25):251805. doi: 10.1103/PhysRevLett.87.251805. Epub 2001 Nov 30.

Authors

V M Abazov¹, 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, N Amos, 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 Crépé-Renaudin, M A Cummings, D Cutts, G A Davis, K Davis, K De, S J de Jong, K Del Signore, M Demarteau, R Demina, P Demine, D Denisov, S P Denisov, S Desai, H T Diehl, M Diesburg, S Doulas, Y Ducros, L V Dudko, S Duensing, L Duflot, S R Dugad, A Duperrin, A Dyshkant, D Edmunds, J Ellison, V D Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, O V Eroshin, J Estrada, H Evans, V N Evdokimov, T Fahland, S Feher, D Fein, T Ferbel, F Filthaut, H E Fisk, Y Fisyak, E Flattum, F Fleuret, M Fortner, H Fox, K C Frame, S Fu, S Fuess, E Gallas, A N Galyaev, M Gao, V Gavrilov, R J Genik 2nd, K Genser, C E Gerber, Y Gershtein, R Gilmartin, G Ginther, B Gómez, G Gómez, P I Goncharov, J L González Solís, H Gordon, L T Goss, K Gounder, A Goussiou, N Graf, G Graham, P D Grannis, J A Green, H Greenlee, Z D Greenwood, S Grinstein, L Groer, S Grünendahl, A Gupta, S N Gurzhiev, G Gutierrez, P Gutierrez, N J Hadley, H Haggerty, S Hagopian, V Hagopian, R E Hall, P Hanlet, S Hansen, J M Hauptman, C Hays, C Hebert, D Hedin, J M Heinmiller, A P Heinson, U Heintz, T Heuring, M D Hildreth, R Hirosky, J D Hobbs, B Hoeneisen, Y Huang, R Illingworth, A S Ito, M Jaffré, S Jain, R Jesik, K Johns, M Johnson, A Jonckheere, H Jöstlein, A Juste, W Kahl, S Kahn, E Kajfasz, A M Kalinin, D Karmanov, D Karmgard, R Kehoe, A Khanov, A Kharchilava, S K Kim, B Klima, B Knuteson, W Ko, J M Kohli, A V Kostritskiy, J Kotcher, B Kothari, A V Kotwal, A V Kozelov, E A Kozlovsky, J Krane, M R Krishnaswamy, P Krivkova, S Krzywdzinski, M Kubantsev, S Kuleshov, Y Kulik, S Kunori, A Kupco, V E Kuznetsov, G Landsberg, W M Lee, A Leflat, C Leggett, F Lehner, J Li, Q Z Li, X Li, J G Lima, D Lincoln, S L Linn, J Linnemann, R Lipton, A Lucotte, L Lueking, C Lundstedt, C Luo, A K Maciel, R J Madaras, V L Malyshev, V Manankov, H S Mao, T Marshall, M I Martin, K M Mauritz, B May, A A Mayorov, R McCarthy, T McMahon, H L Melanson, M Merkin, K W Merritt, C Miao, H Miettinen, D Mihalcea, C S Mishra, N Mokhov, N K Mondal, H E Montgomery, R W Moore, M Mostafa, H da Motta, E Nagy, F Nang, M Narain, V S Narasimham, N A Naumann, H A Neal, J P Negret, S Negroni, T Nunnemann, D O'Neil, V Oguri, B Olivier, N Oshima, P Padley, L J Pan, K Papageorgiou, A Para, N Parashar, R Partridge, N Parua, M Paterno, A Patwa, B Pawlik, J Perkins, O Peters, P Pétroff, R Piegaia, B G Pope, E Popkov, H B Prosper, S Protopopescu, M B Przybycien, J Qian, R Raja, S Rajagopalan, E Ramberg, P A Rapidis, N W Reay, S Reucroft, M Ridel, M Rijssenbeek, F Rizatdinova, T Rockwell, M Roco, C Royon, P Rubinov, R Ruchti, J Rutherfoord, B M Sabirov, G Sajot, A Santoro, L Sawyer, R D Schamberger, H Schellman, A Schwartzman, N Sen, E Shabalina, R K Shivpuri, D Shpakov, M Shupe, R A Sidwell, V Simak, H Singh, J B Singh, V Sirotenko, P Slattery, E Smith, R P Smith, R Snihur, G R Snow, J Snow, S Snyder, J Solomon, Y Song, V Sorín, M Sosebee, N Sotnikova, K Soustruznik, M Souza, N R Stanton, G Steinbrück, R W Stephens, F Stichelbaut, D Stoker, V Stolin, A Stone, D A Stoyanova, M A Strang, M Strauss, M Strovink, L Stutte, A Sznajder, M Talby, W Taylor, S Tentindo-Repond, S M Tripathi, T G Trippe, A S Turcot, P M Tuts, V Vaniev, R Van Kooten, N Varelas, L S Vertogradov, F Villeneuve-Seguier, A A Volkov, A P Vorobiev, H D Wahl, H Wang, Z M Wang, J Warchol, G Watts, M Wayne, H Weerts, A White, J T White, D Whiteson, J A Wightman, D A Wijngaarden, S Willis, S J Wimpenny, J Womersley, D R Wood, Q Xu, R Yamada, P Yamin, T Yasuda, Y A Yatsunenko, K Yip, S Youssef, J Yu, Z Yu, M Zanabria, X Zhang, H Zheng, B Zhou, Z Zhou, M Zielinski, D Zieminska, A Zieminski, V Zutshi, E G Zverev, A Zylberstejn; D0 Collaboration

Affiliation

¹ Joint Institute for Nuclear Research, Dubna, Russia.

PMID: 11736564
DOI: 10.1103/PhysRevLett.87.251805

Abstract

The inclusive cross section for production of isolated photons has been measured in pp macro collisions at square root of s = 630 GeV with the D0 detector at the Fermilab Tevatron Collider. The photons span a transverse energy (E(T)) range from 7-49 GeV and have pseudorapidity absolute value of eta < 2.5. This measurement is combined with the previous D0 result at square root of 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 the ratio of cross sections show satisfactory agreement in most of the E(T) range.