Measurement of the differential cross section for the production of an isolated photon with associated jet in p(p)over-bar collisions at root s=1.96 TeV

  • Abazov, V. M.
  • Abbott, B.
  • Abolins, M.
  • Acharya, B. S.
  • Adams, M.
  • 외 526명
Citations

WEB OF SCIENCE

35
Citations

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50

초록

The process p (p) over bar -> gamma + jet + X is studied using 1.0 fb(-1) of data collected by the DO detector at the Fermilab Tevatron p (p) over bar collider at a center-of-mass energy root s = 1.96 TeV. Photons are reconstructed in the central rapidity region vertical bar y(gamma)vertical bar < 1.0 with transverse momenta in the range 30 < p(T)(gamma) < 400 GeV while jets are reconstructed in either the central vertical bar y(jet)vertical bar < 0.8 or forward 1.5 < vertical bar y(jet)vertical bar < 2.5 rapidity intervals with P-T(jet) > 15 GeV. The differential cross section d(3 sigma)/dp(T)(gamma) dy(gamma) dy(jet) is measured as a function of p(T)(gamma) in four regions, differing by the relative orientations of the photon and the jet in rapidity. Ratios between the differential cross sections in each region are also presented. Next-to-leading order QCD predictions using different parameterizations of parton distribution functions and theoretical scale choices are compared to the data. The predictions do not simultaneously describe the measured normalization and p(T)(gamma) dependence of the cross section in the four measured regions. Published by Elsevier B.V.

키워드

GLUON DISTRIBUTIONQCDPHOTOPRODUCTIONENERGY
제목
Measurement of the differential cross section for the production of an isolated photon with associated jet in p(p)over-bar collisions at root s=1.96 TeV
저자
Abazov, V. M.Abbott, B.Abolins, M.Acharya, B. S.Adams, M.Adams, T.Aguilo, E.Ahn, S. H.Ahsan, M.Alexeev, G. D.Alkhazov, G.Alton, A.Alverson, G.Alves, G. A.Anastasoaie, M.Ancu, L. S.Andeen, T.Anderson, S.Andrieu, B.Anzelc, M. S.Aoki, M.Arnoud, Y.Arov, M.Arthaud, M.Askew, A.Asman, B.Jesus, A. C. S. AssisAtramentov, O.Avila, C.Badaud, F.Baden, A.Bagby, L.Baldin, B.Bandurin, D. V.Banerjee, P.Banerjee, S.Barberis, E.Barfuss, A. -F.Bargassa, P.Baringer, P.Barreto, J.Bartlett, J. F.Bassler, U.Bauer, D.Beale, S.Bean, A.Begalli, M.Begel, M.Belanger-Champagne, C.Bellantoni, L.Bellavance, A.Benitez, J. A.Beri, S. B.Bernardi, G.Bernhard, R.Bertram, I.Besancon, M.Beuselinck, R.Bezzubov, V. A.Bhat, P. C.Bhatnagar, V.Biscarat, C.Blazey, G.Blekman, F.Blessing, S.Bloch, D.Bloom, K.Boehnlein, A.Boline, D.Bolton, T. A.Boos, E. E.Borissov, G.Bose, T.Brandt, A.Brock, R.Brooijmans, G.Bross, A.Brown, D.Buchanan, N. J.Buchholz, D.Buehler, M.Buescher, V.Bunichev, V.Burdin, S.Burkes, S.Burnett, T. 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A.Negret, J. P.Neustroev, P.Nilsen, H.Nogima, H.Novaes, S. F.Nunnemanny, T.O'Dell, V.O'Neil, D. C.Obrant, G.Ochando, C.Onoprienko, D.Oshima, N.Osman, N.Osta, J.Otec, R.Otero Y Garzon, G. J.Owen, M.Padley, P.Pangilinan, M.Parashar, N.Park, S. -J.Park, S. K.Parsons, J.Partridge, R.Parua, N.Patwa, A.Pawloski, G.Penning, B.Perfilov, M.Peters, K.Peters, Y.Petroff, P.Petteni, M.Piegaia, R.Piper, J.Pleier, M. -A.Podesta-Lerma, P. L. M.Podstavkov, V. M.Pogorelov, Y.Pol, M. -E.Polozov, P.Pope, B. G.Popov, A. V.Potter, C.da Silva, W. L. PradoProsper, H. B.Protopopescu, S.Qian, J.Quadt, A.Quinn, B.Rakitine, A.Rangel, M. S.Ranjan, K.Ratoff, P. N.Renkel, P.Reucroft, S.Rich, P.Rieger, J.Rijssenbeek, M.Ripp-Baudot, I.Rizatdinova, F.Robinson, S.Rodrigues, R. F.Rominsky, M.Royon, C.Rubinov, P.Ruchti, R.Safronov, G.Sajot, G.Sanchez-Hernandez, A.Sanders, M. P.Sanghi, B.Santoro, A.Savage, G.Sawyer, L.Scanlon, T.Schaile, D.Schamberger, R. 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DOI
10.1016/j.physletb.2008.06.076
발행일
2008-09-11
유형
Article
저널명
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
666
5
페이지
435 ~ 445