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Measurement of the differential gamma+2b-jet cross section and the ration sigma(gamma+2b-jets)/sigma(gamma plus b-jet) in p(p)over-bar collisions at root s=1.96 TeV

Authors
Abazov, V. M.Abbott, B.Acharya, B. S.Adams, M.Adams, T.Agnew, J. P.Alexeev, G. D.Alkhazov, G.Alton, A.Askew, A.Atkins, S.Augsten, K.Avila, C.Badaud, F.Bagby, L.Baldin, B.Bandurin, D. V.Banerjee, S.Barberis, E.Baringer, P.Bartlett, J. F.Bassler, U.Bazterra, V.Bean, A.Begalli, M.Bellantoni, L.Beri, S. B.Bernardi, G.Bernhard, R.Bertram, I.Besancon, M.Beuselinck, R.Bhat, P. C.Bhatia, S.Bhatnagar, V.Blazey, G.Blessing, S.Bloom, K.Boehnlein, A.Boline, D.Boos, E. E.Borissov, G.Borysova, M.Brandt, A.Brandt, O.Brock, R.Bross, A.Brown, D.Bu, X. B.Buehler, M.Buescher, V.Bunichev, V.Burdin, S.Buszello, C. P.Camacho-Perez, E.Casey, B. C. K.Castilla-Valdez, H.Caughron, S.Chakrabarti, S.Chan, K. M.Chandra, A.Chapon, E.Chen, G.Cho, S. W.Choi, S.Choudhary, B.Cihangir, S.Claes, D.Clutter, J.Cooke, M.Cooper, W. E.Corcoran, M.Couderc, F.Cousinou, M. -C.Cutts, D.Das, A.Davies, G.de Jong, S. J.De La Cruz-Burelo, E.Deliot, F.Demina, R.Denisov, D.Denisov, S. P.Desai, S.Deterre, C.DeVaughan, K.Diehl, H. T.Diesburg, M.Ding, P. F.Dominguez, A.Dubey, A.Dudko, L. V.Duperrin, A.Dutt, S.Eads, M.Edmunds, D.Ellison, J.Elvira, V. D.Enari, Y.Evans, H.Evdokimov, V. N.Faure, A.Feng, L.Ferbel, T.Fiedler, F.Filthaut, F.Fisher, W.Fisk, H. E.Fortner, M.Fox, H.Fuess, S.Garbincius, P. H.Garcia-Bellido, A.Garcia-Gonzalez, J. A.Gavrilov, V.Geng, W.Gerber, C. E.Gershtein, Y.Ginther, G.Gogota, O.Golovanov, G.Grannis, P. D.Greder, S.Greenlee, H.Grenier, G.Gris, Ph.Grivaz, J. -F.Grohsjean, A.Gruenendahl, S.Gruenewald, M. W.Guillemin, T.Gutierrez, G.Gutierrez, P.Haley, J.Han, L.Harder, K.Harel, A.Hauptman, J. M.Hays, J.Head, T.Hebbeker, T.Hedin, D.Hegab, H.Heinson, A. P.Heintz, U.Hensel, C.Heredia-De La Cruz, I.Herner, K.Hesketh, G.Hildreth, M. D.Hirosky, R.Hoang, T.Hobbs, J. D.Hoeneisen, B.Hogan, J.Hohlfeld, M.Holzbauer, J. L.Howley, I.Hubacek, Z.Hynek, V.Iashvili, I.Ilchenko, Y.Illingworth, R.Ito, A. S.Jabeen, S.Jaffre, M.Jayasinghe, A.Jeong, M. S.Jesik, R.Jiang, P.Johns, K.Johnson, E.Johnson, M.Jonckheere, A.Jonsson, P.Joshi, J.Jung, A. W.Juste, A.Kajfasz, E.Karmanov, D.Katsanos, I.Kaur, M.Kehoe, R.Kermiche, S.Khalatyan, N.Khanov, A.Kharchilava, A.Kharzheev, Y. N.Kiselevich, I.Kohli, J. M.Kozelov, A. V.Kraus, J.Kumar, A.Kupco, A.Kurca, T.Kuzmin, V. A.Lammers, S.Lebrun, P.Lee, H. S.Lee, S. W.Lee, W. M.Lei, X.Lellouch, J.Li, D.Li, H.Li, L.Li, Q. Z.Lim, J. K.Lincoln, D.Linnemann, J.Lipaev, V. V.Lipton, R.Liu, H.Liu, Y.Lobodenko, A.Lokajicek, M.de Sa, R. LopesLuna-Garcia, R.Lyon, A. L.Maciel, A. K. A.Madar, R.Magana-Villalba, R.Malik, S.Malyshev, V. L.Mansour, J.Martinez-Ortega, J.McCarthy, R.McGivern, C. L.Meijer, M. M.Melnitchouk, A.Menezes, D.Mercadante, P. G.Merkin, M.Meyer, A.Meyer, J.Miconi, F.Mondal, N. K.Mulhearn, M.Nagy, E.Narain, M.Nayyar, R.Neal, H. A.Negret, J. P.Neustroev, P.Nguyen, H. T.Nunnemann, T.Orduna, J.Osman, N.Osta, J.Pal, A.Parashar, N.Parihar, V.Park, S. K.Partridge, R.Parua, N.Patwa, A.Penning, B.Perfilov, M.Peters, Y.Petridis, K.Petrillo, G.Petroff, P.Pleier, M. -A.Podstavkov, V. M.Popov, A. V.Prewitt, M.Price, D.Prokopenko, N.Qian, J.Quadt, A.Quinn, B.Ratoff, P. N.Razumov, I.Ripp-Baudot, I.Rizatdinova, F.Rominsky, M.Ross, A.Royon, C.Rubinov, P.Ruchti, R.Sajot, G.Sanchez-Hernandez, A.Sanders, M. P.Santos, A. S.Savage, G.Savitskyi, M.Sawyer, L.Scanlon, T.Schamberger, R. D.Scheglov, Y.Schellman, H.Schwanenberger, C.Schwienhorst, R.Sekaric, J.Severini, H.Shabalina, E.Shary, V.Shaw, S.Shchukin, A. A.Simak, V.Skubic, P.Slattery, P.Smirnov, D.Snow, G. R.Snow, J.Snyder, S.Soeldner-Rembold, S.Sonnenschein, L.Soustruznik, K.Stark, J.Stoyanova, D. A.Strauss, M.Suter, L.Svoisky, P.Titov, M.Tokmenin, V. V.Tsai, Y. -T.Tsybychev, D.Tuchming, B.Tully, C.Uvarov, L.Uvarov, S.Uzunyan, S.Van Kooten, R.van Leeuwen, W. M.Varelas, N.Varnes, E. W.Vasilyev, I. A.Verkheev, A. Y.Vertogradov, L. S.Verzocchi, M.Vesterinen, M.Vilanova, D.Vokac, P.Wahl, H. D.Wang, M. H. L. S.Warchol, J.Watts, G.Wayne, M.Weichert, J.Welty-Rieger, L.Williams, M. R. J.Wilson, G. W.Wobisch, M.Wood, D. R.Wyatt, T. R.Xie, Y.Yamada, R.Yang, S.Yasuda, T.Yatsunenko, Y. A.Ye, W.Ye, Z.Yin, H.Yip, K.Youn, S. W.Yu, J. M.Zennamo, J.Zhao, T. G.Zhou, B.Zhu, J.Zielinski, M.Zieminska, D.Zivkovic, L.
Issue Date
7-10월-2014
Publisher
ELSEVIER
Citation
PHYSICS LETTERS B, v.737, pp.357 - 365
Indexed
SCIE
SCOPUS
Journal Title
PHYSICS LETTERS B
Volume
737
Start Page
357
End Page
365
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/97113
DOI
10.1016/j.physletb.2014.09.007
ISSN
0370-2693
Abstract
We present the first measurements of the differential cross section d sigma/dp(T)(gamma) for the production of an isolated photon in association with at least two b-quark jets. The measurements consider photons with rapidities vertical bar y(gamma)vertical bar < 1.0 and transverse momenta 30 < p(T)(gamma) < 200 GeV. The b-quark jets are required to have p(T)(jet) > 15 GeVand vertical bar y(jet)vertical bar < 1.5. The ratio of differential production cross sections for gamma + 2 b-jets to gamma + b-jet as a function of p(T)(gamma) is also presented. The results are based on the proton-antiproton collision data at root s = 1.96 TeV collected with the D0 detector at the Fermilab Tevatron Collider. The measured cross sections and their ratios are compared to the next- to- leading order perturbative QCD calculations as well as predictions based on the k(T)- factorization approach and those from the sherpa and pythia Monte Carlo event generators. (C) 2014 Published by Elsevier B.V.
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