Accès ouvert déclaré
1997
article
Search for high mass photon pairs in $p\bar{p} \to \gamma \gamma j j$ events at $\sqrt{s} = 1.8$ TeV
B. Abbott, J. Warchol, A. Jonckheere, A.L. Spadafora, R. McCarthy, C. S. Mishra, E. Won, L. Lueking, T. Yasuda, J. Krane, M.A.C. Cummings, R. Snihur, A. Santoro, D. Stewart, O. Ramírez, P. Tamburello, N. N. Biswas, J. Thompson, J. M. Hauptman, J. A. Wightman, N. Varelas, J. P. Negret, J. Li, K. Bazizi, R. J. Madaras, G. Blazey, D. Owen, K. W. Merritt, J. D. Hobbs, O. V. Eroshin, J. Kotcher, C. Yoshikawa, S. Kahn, E. G. Zverev, R. K. Shivpuri, J. Jaques, M. M. Baarmand, Y.C. Liu, Y. Ducros, D. Buchholz, J. F. Bartlett, U. Heintz, S. Y. Jun, A. D. Bross, G. Di Loreto, S. Youssef, B. S. Acharya, G. Guglielmo, T. Marshall, N. Grossman, M. Sosebee, S. R. Dugad, M. Paterno, S. Snyder, D. Koltick, J. T. White, S. Protopopescu, V. A. Bezzubov, N. Sotnikova, E. Shabalina, H. D. Wahl, L. Magaña-Mendoza, Jinfeng Yang, H. Aihara, M.I. Martin, I. A. Bertram, C.L. Kim, D. Lincoln, R. Lipton, G. E. Forden, J. Qian, A.P. Vorobev, J. Tarazi, H. Prosper, F. Stichelbaut, J. H. Christenson, K. Del Signore, S. Willis, K. S. Hahn, A. White, P. C. Bhat, L. Dudko, J. Green, V. D. Elvira, M. Diesburg, J. Solomon, P. Draper, C. E. Gerber, S.J. Wimpenny, R.P. Smith, H. da Motta, B. May, Q. Z. Li-Demarteau, Yu.E. Gutnikov, A.V. Kostritsky, S. C. Loken, M. Fatyga, P. Yamin, G. Landsberg, P. Z. Quintas, R. Piegaia, R. Ruchti, A. Sznajder, D. Denisov, A. Zylberstejn, J. Womersley, G. Wang, N. J. Hadley, B. Klima, V.N. Evdokimov, H. A. Gordon, D. R. Claes, J. Snow, D. Casey, F. Landry, M. Pang, S. Grinstein, M. Johnson, A. Brandt, D. Cutts, C. H. Murphy, A. L. Lyon, F. Nang, R. Jesik, Yun-Wei Yu, Wesley M. Smart, Z. H. Zhu, V. Oguri, R. Engelmann, D. Vititoe, G. A. Alves, D.A. Stoyanova, L. Oesch, T. L. Geld, M. R. Krishnaswamy, S.N. Gurzhev, N. K. Mondal, T. Ferbel, G. Eppley, S. Hansen, A.S. Ito, N. Amos, W. Chen, P. I. Goncharov, H. E. Fisk, J. Bantly, K. Davis, Hugh Montgomery, P. Rubinov, P. Gutierrez, J.Z.Y. Jiang, T. G. Trippe, Richard Partridge, V. Balamurali, N. Oshima, M. L. Stevenson, A. G. Goussiou, R. Hirosky, R. J. Genik, R. D. Schamberger, V.M. Podstavkov, Ch. Jung, S. Fuess, J. Balderston, F. Lobkowicz, G. Watts, E. A. Kozlovsky, M. Kelly, G. Kalbfleisch, R. Markeloff, T. L. Thomas, A. A. Mayorov, J. Kourlas, S. V. Chekulaev, P. Gartung, L. T. Goss, W. Carvalho, N. A. Roe, H. Jöstlein, A. Belyaev, P. Yepes, S.K. Kim, J. McDonald, J. McKinley, Z. Casilum, H Li, D. Edmunds, N. Mokhov, M. Peters, J. Linnemann, S. Blessing, J. B. Singh, A. P. Heinson, E. Flattum, Q. Liu, Hao Xu, H. Schellman, S. Linn, J. M. Kohli, C. Cretsinger, A.R. Hernandez-Montoya, S. Mani, A. Ziemiński, P. M. Sood, B. G. Pope, M. Jones, J. Ellison, R. Madden, G. R. Snow, S. Hagopian, J. Perkins, Bruce Gibbard, M. A. Shupe, S. Reucroft, S. Fehér, B. C. Choudhary, F. Hsieh, L. Sawyer, R.E. Hall, B.Paul Padley, K. Gounder, H. A. Neal, J. V. D. Wirjawan, V. Klyukhin, R. Raja, V. Sirotenko, S. Chang, D. Ziemińska, J. S. Hoftun, V. Bhatnagar, M. Rijssenbeek, N. Parua, A. Sánchez-Hernández, J. Featherly, G. Finocchiaro, P. M. Tuts, N. I. Bojko, M. Merkin, S. A. Jerger, Y. Fisyak, B. Lauer, D. Norman, V. Burtovoy, O. I. Dahl, B. Gómez, S. Choi, T. Huehn, M. Bhattacharjee, J. L. González Solís, T. Rockwell, Yu. Pishchalnikov, K. De, D.R. Wood, S. Rajagopalan, R. W. Stephens, P. Mooney, K. Genser, И. Адам, M. Goforth, H. Lan, H. Miettinen, J. M. Guida, S. B. Beri, V. Hagopian, A. Gupta, M. Demarteau, H. Piekarz, E. James, T. Heuring, M. Nicola, T.R. McMahon, F. Borcherding, E. W. Varnes, Stefan Gruenendahl, S. Krzywdziński, K.M. Mauritz, William Anderson, J. M. Butler, S. Kunori, A.K.A. Maciel, H.L. Melanson, A. Kozelov, M. Tartaglia, L. Rasmussen, S. H. Ahn, R. Brock, A. Volkov, P. D. Grannis, J. Sculli, S. Chopra, W. E. Cooper, D. P. Stoker, R. Astur, V.S. Narasimham, G. Gómez, A. I. Mincer, S. Banerjee, H. Castilla-Valdez, C. Klopfenstein, E. J. Gallas, M. Chung, B. Baldin, A. Boehnlein, J.A. Guida, S. P. Denisov, J. P. Rutherfoord, A. V. Kotwal, S. Glenn, D. Hedin, T. McKibben, Ting Hu, N. Graf, R. Kehoe, D. Fein, A. Baden, D.R. Green, P. Némethy, B. Hoeneisen, H. Weerts, H. Singh, S. C. Eno, P. Grudberg, M. Strovink, W. G. Cobau, D. Cullen-Vidal, A. Leflat, A. Goldschmidt, T. Joffe–Minor, V. Kochetkov, E. Oltman, A. Klatchko, J. G. R. Lima, H. T. Diehl, A. R. Clark, C. Shaffer, S. Lami, M. Strauss, M. Narain, M. H. G. Souza, B. Gobbi, K. Turner, H. C. Shankar, A. Narayanan, E. Amidi, R. Yamada, H. Haggerty, H. S. Mao, G. Grim, L.P. Chen, Tong Hu, P. Hanlet, H. Greenlee, C. Yanagisawa, T. Fahland, D. L. Adams, K. A. Johns, J. S. Kang, P. Ermolov, M. Wayne, M. Abolins, Mark Raymond Adams, P. C. Bloom, C. Boswell, D. Chakraborty, K. C. Frame, A. Para, R. L. Lander, Y.M. Park, J. Yu, M. Fortner, S. Lökòs, A. N. Galyaev
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Le résumé fourni par la source
A search for new physics in the channel p{anti p} {yields} {gamma}{gamma}jj has been studied. In some extended Higgs models, a light neutral scalar Higgs boson is produced with suppressed couplings to fermions and standard model(SM) strength couplings to vector bosons(bosonic Higgs), thus enhancing the H {yields} {gamma}{gamma} channel. We required one photon in the event with E{sup {gamma}}{sub T} > 20 GeV, {vert_bar}{eta}{sup {gamma}}{vert_bar} < 1.1 or 1.5 < {vert_bar}{eta}{sup {gamma}}{vert_bar} < 2.0 and a second photon with E{sup {gamma}}{sub T} > 15 GeV, {vert_bar}{eta}{sup {gamma}}{vert_bar} < 1.1 or 1.5 < {vert_bar}{eta}{sup {gamma}}{vert_bar} < 2.25. Additionally, we required one hadronic jet in the event with E{sup jet}{sub T} > 20 GeV, {vert_bar}{eta}{sup jet}{vert_bar} < 2.0 and a second hadronic jet with E{sup jet}{sub T} > 15 GeV, {vert_bar}{eta}{sup jet}{vert_bar} < 2.25. The photons are required to have a {summation}{rvec E}{sub T}({gamma}) {>=} 10 GeV, and likewise the jets are required to have a {summation}{rvec E}{sub T}(jet) {>=} 10 GeV. The final M{sub {gamma}{gamma}} distribution is consistent with background and no resonance is observed. A 90(95)% C.L. upper limit cross section vs M{sub {gamma}{gamma}} is calculated, which ranges from 0.6(0.7) pb{sup -1} for M{sub {gamma}{gamma}} = 60 GeV/c{sup 2} to 0.3(0.4) pb{sup -1} for M{sub {gamma}{gamma}} = 130 GeV/c{sup 2}. With standard model coupling strengths between the bosonic Higgs and vector bosons, a 90(95)% C.L. bosonic Higgs lower mass limit is set at 86(81) GeV/c{sup 2}.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
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Particle physics theoretical and experimental studiesComputational Physics and Python ApplicationsBig Data Technologies and Applications