/ Experiment-HEP arXiv:1206.4346


Measurement of Beauty Photoproduction near Threshold using Di-electron Events with the H1 Detector at HERA


Aaron, F.D. (Bucharest U.) ; Alexa, C. (Bucharest, IFIN-HH) ; Andreev, V. (Lebedev Inst.) ; Backovic, S. (Montenegro U.) ; Baghdasaryan, A. (Yerevan Phys. Inst.) ; Baghdasaryan, S. (Yerevan Phys. Inst.) ; Barrelet, E. (Paris U., VI-VII) ; Bartel, W. (DESY) ; Begzsuren, K. (Ulan Bator, Inst. Phys. Tech.) ; Belousov, A. (Lebedev Inst.) ; Belov, P. (DESY) ; Bizot, J.C. (Orsay, LAL) ; Boudry, V. (Ecole Polytechnique) ; Bozovic-Jelisavcic, I. (VINCA Inst. Nucl. Sci., Belgrade) ; Bracinik, J. (Birmingham U.) ; Brandt, G. (DESY) ; Brinkmann, M. (DESY) ; Brisson, V. (Orsay, LAL) ; Britzger, D. (DESY) ; Bruncko, D. (Kosice, IEF) ; Bunyatyan, A. (Yerevan Phys. Inst.) ; Bylinkin, A. (Moscow, ITEP) ; Bystritskaya, L. (Moscow, ITEP) ; Campbell, A.J. (DESY) ; Cantun Avila, K.B. (Merida, IPN) ; Ceccopieri, F. (Antwerp U., WISINF) ; Cerny, K. (Charles U.) ; Cerny, V. (Kosice, IEF) ; Chekelian, V. (Munich, Max Planck Inst.) ; Contreras, J.G. (Merida, IPN) ; Coughlan, J.A. (Rutherford) ; Cvach, J. (Prague, Inst. Phys.) ; Dainton, J.B. (Liverpool U.) ; Daum, K. (Wuppertal U.) ; Delcourt, B. (Orsay, LAL) ; Delvax, J. (Antwerp U., WISINF) ; De Wolf, E.A. (Antwerp U., WISINF) ; Diaconu, C. (Marseille, CPPM) ; Dobre, M. (Bucharest, IFIN-HH) ; Dodonov, V. (Heidelberg, Max Planck Inst.) ; Dossanov, A. (Munich, Max Planck Inst.) ; Dubak, A. (Montenegro U.) ; Eckerlin, G. (DESY) ; Egli, S. (PSI, Villigen) ; Eliseev, A. (Lebedev Inst.) ; Elsen, E. (DESY) ; Favart, L. (Antwerp U., WISINF) ; Fedotov, A. (Moscow, ITEP) ; Felst, R. (DESY) ; Feltesse, J. (DAPNIA, Saclay) ; Ferencei, J. (Kosice, IEF) ; Fischer, D.J. (DESY) ; Fleischer, M. (DESY) ; Fomenko, A. (Lebedev Inst.) ; Gabathuler, E. (Liverpool U.) ; Gayler, J. (DESY) ; Ghazaryan, S. (DESY) ; Glazov, A. (DESY) ; Goerlich, L. (Cracow, INP) ; Gogitidze, N. (Lebedev Inst.) ; Gouzevitch, M. (Lyon, IPN) ; Grab, C. (Zurich, ETH) ; Grebenyuk, A. (DESY) ; Greenshaw, T. (Liverpool U.) ; Grindhammer, G. (Munich, Max Planck Inst.) ; Habib, S. (DESY) ; Haidt, D. (DESY) ; Henderson, R.C.W. (Lancaster U.) ; Hennekemper, E. (Heidelberg U.) ; Henschel, H. (DESY) ; Herbst, M. (Heidelberg U.) ; Herrera, G. (CINVESTAV, IPN) ; Hildebrandt, M. (PSI, Villigen) ; Hiller, K.H. (DESY) ; Hoffmann, D. (Marseille, CPPM) ; Horisberger, R. (PSI, Villigen) ; Hreus, T. (Antwerp U., WISINF) ; Huber, F. (Heidelberg U.) ; Jacquet, M. (Orsay, LAL) ; Janssen, X. (Antwerp U., WISINF) ; Jonsson, L. (Lund U., Dept. Theor. Phys.) ; Jung, A.W. (Fermilab) ; Jung, H. (Antwerp U., WISINF) ; Kapichine, M. (Dubna, JINR) ; Kenyon, I.R. (Birmingham U.) ; Kiesling, C. (Munich, Max Planck Inst.) ; Klein, M. (Liverpool U.) ; Kleinwort, C. (DESY) ; Kogler, R. (Hamburg U., Inst. Exp. Phys. II) ; Kostka, P. (DESY) ; Kramer, M. (DESY) ; Kretzschmar, J. (Liverpool U.) ; Kruger, K. (Heidelberg U.) ; Landon, M.P.J. (Queen Mary, U. of London) ; Lange, W. (DESY) ; Lastovicka-Medin, G. (Montenegro U.) ; Laycock, P. (Liverpool U.) ; Lebedev, A. (Lebedev Inst.) ; Lendermann, V. (Heidelberg U.) ; Levonian, S. (DESY) ; Lipka, K. (Tennessee U.) ; List, B. (DESY) ; List, J. (DESY) ; Lobodzinski, B. (DESY) ; Lopez-Fernandez, R. (CINVESTAV, IPN) ; Lubimov, V. (Moscow, ITEP) ; Malinovski, E. (Lebedev Inst.) ; Martyn, H.U. (Aachen, Tech. Hochsch.) ; Maxfield, S.J. (Liverpool U.) ; Mehta, A. (Liverpool U.) ; Meyer, A.B. (DESY) ; Meyer, H. (Wuppertal U., Dept. Math.) ; Meyer, J. (DESY) ; Mikocki, S. (Cracow, INP) ; Milcewicz-Mika, I. (Cracow, INP) ; Moreau, F. (Ecole Polytechnique) ; Morozov, A. (Dubna, JINR) ; Morris, J.V. (Rutherford) ; Muller, K. (Zurich U.) ; Naumann, Th. (DESY) ; Newman, P.R. (Birmingham U.) ; Niebuhr, C. (DESY) ; Nikitin, D. (Dubna, JINR) ; Nowak, G. (Cracow, INP) ; Nowak, K. (Hamburg U., Inst. Exp. Phys. II) ; Olivier, B. (Munich, Max Planck Inst.) ; Olsson, J.E. (DESY) ; Ozerov, D. (DESY) ; Pahl, P. (DESY) ; Palichik, V. (Dubna, JINR) ; Pandurovic, M. (VINCA Inst. Nucl. Sci., Belgrade) ; Pascaud, C. (Orsay, LAL) ; Patel, G.D. (Liverpool U.) ; Perez, E. (CERN) ; Petrukhin, A. (DESY) ; Picuric, I. (Montenegro U.) ; Pirumov, H. (Heidelberg U.) ; Pitzl, D. (DESY) ; Placakyte, R. (DESY) ; Pokorny, B. (Charles U.) ; Polifka, R. (Toronto U.) ; Povh, B. (Heidelberg, Max Planck Inst.) ; Radescu, V. (DESY) ; Raicevic, N. (Montenegro U.) ; Ravdandorj, T. (Ulan Bator, Inst. Phys. Tech.) ; Reimer, P. (Prague, Inst. Phys.) ; Rizvi, E. (Queen Mary, U. of London) ; Robmann, P. (Zurich U.) ; Roosen, R. (Antwerp U., WISINF) ; Rostovtsev, A. (Moscow, ITEP) ; Rotaru, M. (Bucharest, IFIN-HH) ; Ruiz Tabasco, J.E. (Merida, IPN) ; Rusakov, S. (Lebedev Inst.) ; Salek, D. (Charles U.) ; Sankey, D.P.C. (Rutherford) ; Sauter, M. (Heidelberg U.) ; Sauvan, E. (Annecy, LAPP) ; Schmitt, S. (DESY) ; Schoeffel, L. (DAPNIA, Saclay) ; Schoning, A. (Heidelberg U.) ; Schultz-Coulon, H.C. (Heidelberg U.) ; Sefkow, F. (DESY) ; Shtarkov, L.N. (Lebedev Inst.) ; Shushkevich, S. (DESY) ; Sloan, T. (Lancaster U.) ; Soloviev, Y. (Lebedev Inst.) ; Sopicki, P. (Cracow, INP) ; South, D. (DESY) ; Spaskov, V. (Dubna, JINR) ; Specka, A. (Ecole Polytechnique) ; Staykova, Z. (Antwerp U., WISINF) ; Steder, M. (DESY) ; Stella, B. (INFN, Rome) ; Stoicea, G. (Bucharest, IFIN-HH) ; Straumann, U. (Zurich U.) ; Sykora, T. (Charles U.) ; Thompson, P.D. (Birmingham U.) ; Tran, T.H. (Orsay, LAL) ; Traynor, D. (Queen Mary, U. of London) ; Truol, P. (Zurich U.) ; Tsakov, I. (Sofiya, Inst. Nucl. Res.) ; Tseepeldorj, B. (Ulaanbaatar U.) ; Turnau, J. (Cracow, INP) ; Valkarova, A. (Charles U.) ; Vallee, C. (Marseille, CPPM) ; Van Mechelen, P. (Antwerp U., WISINF) ; Vazdik, Y. (Lebedev Inst.) ; Wegener, D. (Dortmund U.) ; Wunsch, E. (DESY) ; Zacek, J. (Charles U.) ; Zalesak, J. (Prague, Inst. Phys.) ; Zhang, Z. (Orsay, LAL) ; Zhokin, A. (Moscow, ITEP) ; Zlebcik, R. (Charles U.) ; Zohrabyan, H. (Yerevan Phys. Inst.) ; Zomer, F. (Orsay, LAL)

Pages: 34

Abstract: The cross section for ep -> e b\bar{b} X in photoproduction is measured with the H1 detector at the ep-collider HERA. The decay channel b\bar{b} -> ee X' is selected by identifying the semi-electronic decays of the b-quarks. The total production cross section is measured in the kinematic range given by the photon virtuality Q^2 <= 1 GeV^2, the inelasticity 0.05 <= y <= 0.65 and the pseudorapidity of the b-quarks |eta(b)|,|eta(\bar{b})| <= 2. The differential production cross section is measured as a function of the average transverse momentum of the beauty quarks <P_T(b)> down to the threshold. The results are compared to next-to-leading-order QCD predictions.

Web-Page: http://inspirehep.net/record/1118830/files/arXiv:1206.4346.pdf; http://inspirehep.net/record/1118830/files/d12-072f10a.png; http://inspirehep.net/record/1118830/files/d12-072f10b.png; http://inspirehep.net/record/1118830/files/d12-072f10c.png; http://inspirehep.net/record/1118830/files/d12-072f10d.png; http://inspirehep.net/record/1118830/files/d12-072f11a.png; http://inspirehep.net/record/1118830/files/d12-072f11b.png; http://inspirehep.net/record/1118830/files/d12-072f11c.png; http://inspirehep.net/record/1118830/files/d12-072f12.png; http://inspirehep.net/record/1118830/files/d12-072f1a.png; http://inspirehep.net/record/1118830/files/d12-072f1b.png; http://inspirehep.net/record/1118830/files/d12-072f2.png; http://inspirehep.net/record/1118830/files/d12-072f3.png; http://inspirehep.net/record/1118830/files/d12-072f4.png; http://inspirehep.net/record/1118830/files/d12-072f5.png; http://inspirehep.net/record/1118830/files/d12-072f6.png; http://inspirehep.net/record/1118830/files/d12-072f7.png; http://inspirehep.net/record/1118830/files/d12-072f8.png; http://inspirehep.net/record/1118830/files/d12-072f9.png


Note: 34 pages, 6 tables, 12 figures

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 Запись создана 2012-07-06, последняя модификация 2014-01-30


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