Journal article
Multi-lepton production at high transverse momentum at HERA
Physics letters. B, Vol.680(1), pp.13-23
09/14/2009
DOI: 10.1016/j.physletb.2009.08.026
Abstract
A search for events containing two or more high-transverse-momentum isolated leptons has been performed in ep collisions with the ZEUS detector at HERA using the full collected data sample, corresponding to an integrated luminosity of 480 pb(-1). The number of observed events has been compared with the prediction from the Standard Model, searching for possible deviations, especially for multi-lepton events with invariant mass larger than 100 GeV. Good agreement with the Standard Model has been observed. Total and differential cross sections for di-lepton production have been measured in a restricted phase space dominated by photon-photon collisions. (C) 2009 Elsevier B.V. All rights reserved.
Details
- Title: Subtitle
- Multi-lepton production at high transverse momentum at HERA
- Creators
- S. Chekanov - Argonne Natl Lab, Argonne, IL 60439 USAM. Derrick - Argonne Natl Lab, Argonne, IL 60439 USAS. Magill - Argonne Natl Lab, Argonne, IL 60439 USAB. Musgrave - Argonne Natl Lab, Argonne, IL 60439 USAD. Nicholass - Argonne Natl Lab, Argonne, IL 60439 USAJ. Repond - Argonne Natl Lab, Argonne, IL 60439 USAR. Yoshida - Argonne Natl Lab, Argonne, IL 60439 USAM. C. K. Mattingly - Andrews UniversityP. Antonioli - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaG. Bari - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaL. Bellagamba - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaD. Boscherini - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaA. Bruni - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaG. Bruni - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaF. Cindolo - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaM. Corradi - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaG. Lacobucci - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaA. Margotti - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaR. Nania - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaA. Polini - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaS. Antonelli - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaM. Basile - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaM. Bindi - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaL. Cifarelli - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaA. Contin - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaS. De Pasquale - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaG. Sartorelli - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaA. Zichichi - Istituto Nazionale di Fisica Nucleare, Sezione di BolognaD. Bartsch - University of BonnI. Brock - University of BonnH. Hartmann - University of BonnE. Hilger - University of BonnH. -P Jakob - University of BonnM. Juengst - University of BonnA. E. Nuncio-Quiroz - University of BonnE. Paul - University of BonnU. Samson - University of BonnV. Schoenberg - University of BonnR. Shehzadi - University of BonnM. Wlasenko - University of BonnJ. D. Morris - University of BristolM. Kaur - Panjab UniversityP. Kaur - Panjab UniversityI. Singh - Panjab UniversityM. Capua - Univ Calabria, Dept Phys, I-87036 Cosenza, ItalyS. Fazio - Univ Calabria, Dept Phys, I-87036 Cosenza, ItalyA. Mastroberardino - University of CalabriaM. Schioppa - University of CalabriaG. Susinno - University of CalabriaE. Tassi - Univ Calabria, Dept Phys, I-87036 Cosenza, ItalyJ. Y. Kim - Chonnam Natl Univ, Kwangju, South KoreaZ. A. Ibrahim - University of MalayaF. Mohamad Idris - University of MalayaB. Kamaluddin - University of MalayaW. A. Wan Abdullah - Univ Malaya, Kuala Lumpur 50603, MalaysiaY. Ning - Columbia UniversityZ. Ren - Columbia UniversityF. Sciulli - Columbia UniversityJ. Chwastowski - Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, PolandA. Eskreys - Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, PolandJ. Figiel - Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, PolandA. Galas - Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, PolandK. Olkiewicz - Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, PolandB. Pawlik - Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, PolandR. Stopa - Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, PolandL. Zawiejski - Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, PolandL. Adamczyk - AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, PolandT. Bold - AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, PolandI. Grabowska-Bold - AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, PolandD. Kisielewska - AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, PolandJ. Lukasik - AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, PolandM. Przybycien - AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, PolandL. Suszycki - AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, PolandA. Kotanski - Jagiellonian UniversityW. Slominski - Jagiellonian UniversityO. Behnke - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyJ. Behr - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyU. Behrens - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyC. Blohm - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyK. Borras - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyD. Bot - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyR. Ciesielski - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyN. Coppola - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyS. Fang - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyA. Geiser - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyP. Goettlicher - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyJ. Grebenyuk - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyI. Gregor - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyT. Haas - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyW. Hain - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyA. Huettmann - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyF. Januschek - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyB. Kahle - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyI. I. Katkov - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyU. Klein - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyU. Koetz - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyH. Kowalski - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyM. Lisovyi - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyE. Lobodzinska - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyB. Loehr - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyR. Mankel - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyI. -A. Melzer-Pellmann - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyS. Miglioranzi - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyA. Montanari - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyT. Namsoo - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyD. Notz - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyA. Parenti - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyP. Roloff - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyI. Rubinsky - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyU. Schneekloth - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyA. Spiridonov - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyD. Szuba - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyJ. Szuba - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyT. Theedt - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyJ. Tomaszewska - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyG. Wolf - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyK. Wrona - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyA. G. Yaguees-Molina - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyC. Youngman - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyW. Zeuner - Deutsch Elektronen Synchrotron DESY, Hamburg, GermanyV. Drugakov - Deutsch Elektronen Synchrotron DESY, Zeuthen, GermanyW. Lohmann - Deutsch Elektronen Synchrotron DESY, Zeuthen, GermanyS. Schlenstedt - Deutsch Elektronen Synchrotron DESY, Zeuthen, GermanyG. Barbagli - Florence (Netherlands)E. Gallo - Florence (Netherlands)P. G. Pelfer - Florence (Netherlands)A. Bamberger - University of FreiburgD. Dobur - University of FreiburgF. Karstens - University of FreiburgN. N. Vlasov - University of FreiburgP. J. Bussey - University of GlasgowA. T. Doyle - University of GlasgowM. Forrest - University of GlasgowD. H. Saxon - University of GlasgowI. O. Skillicorn - University of GlasgowI. Gialas - University of the AegeanK. Papageorgiu - University of the AegeanU. Holm - Universität HamburgR. Klanner - Univ Hamburg, Inst Exp Phys, Hamburg, GermanyE. Lohrmann - Universität HamburgH. Perrey - Universität HamburgP. Schleper - Universität HamburgT. Schoerner-Sadenius - Univ Hamburg, Inst Exp Phys, Hamburg, GermanyJ. Sztuk - Universität HamburgH. Stadie - Universität HamburgM. Turcato - Universität HamburgK. R. Long - University of LondonA. D. Tapper - University of LondonT. Matsumoto - KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, JapanK. Nagano - KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, JapanK. Tokushuku - KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, JapanS. Yamada - KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, JapanY. Yamazaki - KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, JapanA. N. Barakbaev - AlmaE. G. Boos - AlmaN. S. Pokrovskiy - AlmaB. O. Zhautykov - AlmaV. Aushev - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineO. Bachynska - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineM. Borodin - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineI. Kadenko - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineO. Kuprash - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineV. Libov - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineD. Lontkovskyi - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineI. Makarenko - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineIu Sorokin - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineA. Verbytskyi - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineO. Volynets - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineM. Zolko - Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, UkraineD. Son - Kyungpook Natl Univ, Ctr High Energy Phys, Taegu 702701, South KoreaJ. de Favereau - Pontifícia Universidade Católica de São PauloK. Piotrzkowski - Pontifícia Universidade Católica de São PauloF. Barreiro - Univ Autonoma Madrid, Dept Fis Teor, Madrid, SpainC. Glasman - Univ Autonoma Madrid, Dept Fis Teor, Madrid, SpainM. Jimenez - Univ Autonoma Madrid, Dept Fis Teor, Madrid, SpainJ. del Peso - Univ Autonoma Madrid, Dept Fis Teor, Madrid, SpainE. Ron - Univ Autonoma Madrid, Dept Fis Teor, Madrid, SpainJ. Terron - Univ Autonoma Madrid, Dept Fis Teor, Madrid, SpainC. Uribe-Estrada - Univ Autonoma Madrid, Dept Fis Teor, Madrid, SpainF. Corriveau - McGill UniversityJ. Schwartz - McGill UniversityC. Zhou - McGill UniversityT. Tsurugai - Ferris UniversityA. Antonov - Moscow Engn Phys Inst, Moscow 115409, RussiaB. A. Dolgoshein - Moscow Engn Phys Inst, Moscow 115409, RussiaD. Gladkov - Moscow Engn Phys Inst, Moscow 115409, RussiaV. Sosnovtsev - Moscow Engn Phys Inst, Moscow 115409, RussiaA. Stifutkin - Moscow Engn Phys Inst, Moscow 115409, RussiaS. Suchkov - Moscow Engn Phys Inst, Moscow 115409, RussiaR. K. Dementiev - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaP. F. Ermolov - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaL. K. Gladilin - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaYu. A. Golubkov - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaL. A. Khein - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaI. A. Korzhavina - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaV. A. Kuzmin - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaB. B. Levchenko - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaO. Yu Lukina - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaA. S. Proskuryakov - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaL. M. Shcheglova - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaD. S. Zotkin - Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, RussiaI. Abt - Max Planck Inst Phys & Astrophys, D-80805 Munich, GermanyA. Caldwell - Max Planck Inst Phys & Astrophys, D-80805 Munich, GermanyD. Kollar - Max Planck Inst Phys & Astrophys, D-80805 Munich, GermanyB. Reisert - Max Planck Inst Phys & Astrophys, D-80805 Munich, GermanyW. B. Schmidke - Max Planck Inst Phys & Astrophys, D-80805 Munich, GermanyG. Grigorescu - University of AmsterdamA. Keramidas - University of AmsterdamE. Koffeman - University of AmsterdamP. Kooijman - University of AmsterdamA. Pellegrino - University of AmsterdamH. Tiecke - University of AmsterdamM. Vazquez - University of AmsterdamL. Wiggers - University of AmsterdamN. Bruemmer - The Ohio State UniversityB. Bylsma - The Ohio State UniversityL. S. Durkin - The Ohio State UniversityA. Lee - The Ohio State UniversityT. Y. Ling - The Ohio State UniversityA. M. Cooper-Sarkar - University of OxfordR. C. E. Devenish - University of OxfordJ. Ferrando - University of OxfordB. Foster - University of OxfordC. Gwenlan - University of OxfordK. Horton - University of OxfordK. Oliver - University of OxfordA. Robertson - University of OxfordR. Walczak - University of OxfordA. Bertolin - INFN Padova, Padua, ItalyF. Dal Corso - INFN Padova, Padua, ItalyS. Dusini - INFN Padova, Padua, ItalyA. Longhin - INFN Padova, Padua, ItalyL. Stanco - INFN Padova, Padua, ItalyR. Brugnera - INFN Padova, Padua, ItalyR. Carlin - INFN Padova, Padua, ItalyA. Garfagnini - INFN Padova, Padua, ItalyS. Limentani - INFN Padova, Padua, ItalyB. Y. Oh - Pennsylvania State UniversityA. Raval - Pennsylvania State UniversityJ. J. Whitmore - Pennsylvania State UniversityY. Iga - Polytech Univ, Sagamihara, Kanagawa, JapanG. D'Agostini - Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, ItalyG. Marini - Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, ItalyA. Nigro - Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, ItalyJ. C. Hart - Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, EnglandH. Abramowicz - Tel Aviv UniversityR. Ingbir - Tel Aviv UniversityS. Kananov - Tel Aviv UniversityA. Levy - Tel Aviv UniversityA. Stern - Tel Aviv UniversityM. Ishitsuka - Tokyo Institute of TechnologyT. Kanno - Tokyo Institute of TechnologyM. Kuze - Tokyo Institute of TechnologyJ. Maeda - Tokyo Institute of TechnologyR. Hori - The University of TokyoS. Kagawa - The University of TokyoN. Okazaki - The University of TokyoS. Shimizu - The University of TokyoT. Tawara - The University of TokyoR. Hamatsu - Tokyo Metropolitan UniversityH. Kaji - Tokyo Metropolitan UniversityS. Kitamura - Tokyo Metropolitan UniversityO. Ota - Tokyo Metropolitan UniversityY. D. Ri - Tokyo Metropolitan UniversityM. Costa - University of TurinM. I. Ferrero - University of TurinV. Monaco - University of TurinR. Sacchi - University of TurinV. Sola - University of TurinA. Solano - University of TurinM. Arneodo - Ist Nazl Fis Nucl, I-10125 Turin, ItalyM. Ruspa - Ist Nazl Fis Nucl, I-10125 Turin, ItalyS. Fourletov - University of TorontoJ. F. Martin - University of TorontoT. P. Stewart - University of TorontoS. K. Boutle - UCL, Dept Phys & Astron, London, EnglandJ. M. Butterworth - UCL, Dept Phys & Astron, London, EnglandT. W. Jones - UCL, Dept Phys & Astron, London, EnglandJ. H. Loizides - UCL, Dept Phys & Astron, London, EnglandM. Wing - UCL, Dept Phys & Astron, London, EnglandB. Brzozowska - Warsaw Univ, Inst Expt Phys, Warsaw, PolandJ. Ciborowski - Warsaw Univ, Inst Expt Phys, Warsaw, PolandG. Grzelak - Warsaw Univ, Inst Expt Phys, Warsaw, PolandP. Kulinski - Warsaw Univ, Inst Expt Phys, Warsaw, PolandP. Luzniak - Warsaw Univ, Inst Expt Phys, Warsaw, PolandJ. Malka - Warsaw Univ, Inst Expt Phys, Warsaw, PolandR. J. Nowak - Warsaw Univ, Inst Expt Phys, Warsaw, PolandJ. M. Pawlak - Warsaw Univ, Inst Expt Phys, Warsaw, PolandW. Perlanski - Warsaw Univ, Inst Expt Phys, Warsaw, PolandA. F. Zarnecki - Warsaw Univ, Inst Expt Phys, Warsaw, PolandM. Adamus - Inst Nucl Studies, PL-00681 Warsaw, PolandP. Plucinski - Inst Nucl Studies, PL-00681 Warsaw, PolandT. Tymieniecka - Inst Nucl Studies, PL-00681 Warsaw, PolandY. Eisenberg - Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, IsraelD. Hochman - Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, IsraelU. Karshon - Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, IsraelE. Brownson - Univ Wisconsin, Dept Phys, Madison, WI 53706 USAD. D. Reeder - Univ Wisconsin, Dept Phys, Madison, WI 53706 USAA. A. Savin - Univ Wisconsin, Dept Phys, Madison, WI 53706 USAW. H. Smith - Univ Wisconsin, Dept Phys, Madison, WI 53706 USAH. Wolfe - Univ Wisconsin, Dept Phys, Madison, WI 53706 USAS. Bhadra - York Univ, Dept Phys, N York, ON M3J 1P3, CanadaC. D. Catterall - York Univ, Dept Phys, N York, ON M3J 1P3, CanadaG. Hartner - York Univ, Dept Phys, N York, ON M3J 1P3, CanadaU. Noor - York Univ, Dept Phys, N York, ON M3J 1P3, CanadaJ. Whyte - York Univ, Dept Phys, N York, ON M3J 1P3, CanadaZEUS Collaboration
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.680(1), pp.13-23
- DOI
- 10.1016/j.physletb.2009.08.026
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Publisher
- Elsevier
- Number of pages
- 11
- Grant note
- ST/H000992/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) PP/E000452/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC)
- Language
- English
- Date published
- 09/14/2009
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627222602771
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