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Multi-Lepton Production at High Transverse Momenta in ep Collisions at HERA

Authors :: Aaron, F. D.
Alexa, C.
Andreev, V.
Antunovic, B.
Aplin, S.
Asmone, A.
Astvatsatourov, A.
Bacchetta, A.
Backovic, S.
Baghdasaryan, A.
Baranov, P.
Barrelet, E.
Bartel, W.
Beckingham, M.
Begzsuren, K.
Behnke, O.
Belousov, A.
Berger, N.
Bizot, J. C.
Boenig, M.-O.
Boudry, V.
Bozovic-Jelisavcic, I.
Bracinik, J.
Brandt, G.
Brinkmann, M.
Brisson, V.
Bruncko, D.
Bunyatyan, A.
Buschhorn, G.
Bystritskaya, L.
Campbell, A. J.
Cantun Avila, K. B.
Cassol-Brunner, F.
Cerny, K.
Cerny, V.
Chekelian, V.
Cholewa, A.
Contreras, J. G.
Coughlan, J. A.
Cozzika, G.
Cvach, J.
Dainton, J. B.
Daum, K.
Deák, M.
de Boer, Y.
Delcourt, B.
Del Degan, M.
Delvax, J.
De Roeck, A.
De Wolf, E. A.
Diaconu, C.
Dodonov, V.
Dossonov, A.
Dubak, A.
Eckerlin, G.
Efremenko, V.
Egli, S.
Eliseev, A.
Elsen, E.
Essenov, S.
Falkewicz, A.
Faulkner, P. J. W.
Favart, L.
Fedotov, A.
Felst, R.
Feltesse, J.
Ferencei, J.
Finke, L.
Fleischer, M.
Fomenko, A.
Gabathuler, E.
Gayler, J.
Ghazaryan, S.
Glazov, A.
Glushkov, I.
Goerlich, L.
Göttlich, M.
Gogitidze, N.
Gouzevitch, M.
Grab, C.
Greenshaw, T.
Grell, B. R.
Grindhammer, G.
Habib, S.
Haidt, D.
Hansson, M.
Helebrant, C.
Henderson, R. C. W.
Hennekemper, E.
Henschel, H.
Herrera, G.
Hildebrandt, M.
Hiller, K. H.
Hoffmann, D.
Horisberger, R.
Hovhannisyan, A.
Hreus, T.
Jacquet, M.
Janssen, M. E.
Janssen, X.
Jemanov, V.
Jönsson, L.
Johnson, D. P.
Jung, A. W.
Jung, H.
Kapichine, M.
Katzy, J.
Kenyon, I. R.
Kiesling, C.
Klein, M.
Kleinwort, C.
Klimkovich, T.
Kluge, T.
Knutsson, A.
Kogler, R.
Korbel, V.
Kostka, P.
Kraemer, M.
Krastev, K.
Kretzschmar, J.
Kropivnitskaya, A.
Krüger, K.
Kutak, K.
Landon, M. P. J.
Lange, W.
Lastovicka-Medin, G.
Laycock, P.
Lebedev, A.
Leibenguth, G.
Lendermann, V.
Levonian, S.
Li, G.
Lipka, K.
Liptaj, A.
List, B.
List, J.
Loktionova, N.
Lopez-Fernandez, R.
Lubimov, V.
Lucaci-Timoce, A.-I.
Lytkin, L.
Makankine, A.
Malinovski, E.
Marage, P.
Marti, Ll.
Martyn, H.-U.
Maxfield, S. J.
Mehta, A.
Meier, K.
Meyer, A. B.
Meyer, H.
Meyer, J.
Michels, V.
Mikocki, S.
Milcewicz-Mika, I.
Moreau, F.
Morozov, A.
Morris, J. V.
Mozer, M. U.
Mudrinic, M.
Müller, K.
Murín, P.
Nankov, K.
Naroska, B.
Naumann, Th.
Newman, P. R.
Niebuhr, C.
Nikiforov, A.
Nowak, G.
Nowak, K.
Nozicka, M.
Olivier, B.
Olsson, J. E.
Osman, S.
Ozerov, D.
Palichik, V.
Panagoulias, I.
Pandurovic, M.
Papadopoulou, Th.
Pascaud, C.
Patel, G. D.
Pejchal, O.
Peng, H.
Perez, E.
Petrukhin, A.
Picuric, I.
Piec, S.
Pitzl, D.
Placakyt\. e, R.
Polifka, R.
Povh, B.
Preda, T.
Radescu, V.
Rahmat, A. J.
Raicevic, N.
Raspiareza, A.
Ravdandorj, T.
Reimer, P.
Rizvi, E.
Robmann, P.
Roland, B.
Roosen, R.
Rostovtsev, A.
Rotaru, M.
Ruiz Tabasco, J. E.
Rurikova, Z.
Rusakov, S.
Salek, D.
Salvaire, F.
Sankey, D. P. C.
Sauter, M.
Sauvan, E.
Schmidt, S.
Schmitt, S.
Schmitz, C.
Schoeffel, L.
Schöning, A.
Schultz-Coulon, H.-C.
Sefkow, F.
Shaw-West, R. N.
Sheviakov, I.
Shtarkov, L. N.
Shushkevich, S.
Sloan, T.
Smiljanic, I.
Smirnov, P.
Soloviev, Y.
Sopicki, P.
South, D.
Spaskov, V.
Specka, A.
Staykova, Z.
Steder, M.
Stella, B.
Straumann, U.
Sunar, D.
Sykora, T.
Tchoulakov, V.
Thompson, G.
Thompson, P. D.
Toll, T.
Tomasz, F.
Tran, T. H.
Traynor, D.
Trinh, T. N.
Truöl, P.
Tsakov, I.
Tseepeldorj, B.
Tsurin, I.
Turnau, J.
Tzamariudaki, E.
Urban, K.
Valkárová, A.
Vallée, C.
Van Mechelen, P.
Vargas Trevino, A.
Vazdik, Y.
Vinokurova, S.
Volchinski, V.
Wegener, D.
Wessels, M.
Wissing, Ch.
Wünsch, E.
Yeganov, V.
Zácek, J.
Zálesák, J.
Zhang, Z.
Zhelezov, A.
Zhokin, A.
Zhu, Y. C.
Zimmermann, T.
Zohrabyan, H.
Zomer, F.
H1 Collaboration
Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE)
Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Laboratoire de l'Accélérateur Linéaire (LAL)
Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Centre de Physique des Particules de Marseille (CPPM)
Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU)
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay
H1
Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
(ukupan broj autora: 274)
Source :: Physics letters: B, Physics Letters B, Physics Letters B, 2008, 668, pp.268-276. ⟨10.1016/j.physletb.2008.08.057⟩, Physics Letters B, Elsevier, 2008, 668, pp.268-276. ⟨10.1016/j.physletb.2008.08.057⟩, Physics letters. Section B, 668, Physics letters / B 668, 268-276 (2008). doi:10.1016/j.physletb.2008.08.057, Physics Letters B, 668 (4), Red Report (2008).
Publication Year :: 2008
Publisher :: arXiv, 2008.
Abstract: Processes leading to a final state with at least two high transverse momentum leptons (electrons or muons) are studied using the full e ± p data sample collected by the H1 experiment at HERA. The data correspond to an integrated luminosity of 463 pb -1. Di-lepton and tri-lepton event classes are investigated. Cross sections of the production of e + e - and μ + μ - pairs are derived in a restricted phase space dominated by photon-photon collisions. In general, good agreement is found with Standard Model predictions. Events are observed with a total scalar sum of lepton transverse momenta above 100 GeV where the Standard Model expectation is low. In this region, combining di-lepton and tri-lepton classes, five events are observed in e + p collisions, compared to a Standard Model expectation of 0.96 ± 0.12, while no such event is observed in e - p data for 0.64 ± 0.09 expected. © 2008 Elsevier B.V. All rights reserved.<br />0<br />DESY-08-065 / arxiv:0806.3987<br />SCOPUS: ar.j<br />info:eu-repo/semantics/published

Details

ISSN :: 03702693
Database :: OpenAIRE
Journal :: Physics letters: B, Physics Letters B, Physics Letters B, 2008, 668, pp.268-276. ⟨10.1016/j.physletb.2008.08.057⟩, Physics Letters B, Elsevier, 2008, 668, pp.268-276. ⟨10.1016/j.physletb.2008.08.057⟩, Physics letters. Section B, 668, Physics letters / B 668, 268-276 (2008). doi:10.1016/j.physletb.2008.08.057, Physics Letters B, 668 (4), Red Report (2008).
Accession number :: edsair.doi.dedup.....efe6d9d0510f4c1ba41248328d8402a1
Full Text :: https://doi.org/10.48550/arxiv.0806.3987