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Multi-Leptons with High Transverse Momentum at HERA

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Abdullah WATW[ 42 ]
Abramowicz
Abt I[ 61 ]
Adamczyk L[ 22 ]
Adamus M[ 92 ]
Alexa C[ 1 ]
Alimujiang K[ 34 ]
Andreev V[ 58 ]
Antonelli
Antonioli P[ 10 ]
Antonov
Antunovic B[ 34 ]
Arneodo
Asmone
Aushev
Avila KBC[ 51 ]
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Bachynska
Backovic S[ 69 ]
Baghdasaryan A[ 94 ]
Bamberger A[ 30 ]
Barakbaev AN[ 3 ]
Barbagli G[ 28 ]
Bari G[ 10 ]
Barreiro F[ 54 ]
Barrelet
Bartel W[ 34 ]
Bartsch D[ 12 ]
Basile
Begzsuren K[ 88 ]
Behnke O[ 34 ]
Behr J[ 34 ]
Behrens U[ 34 ]
Bellagamba L[ 10 ]
Belousov A[ 58 ]
Bertolin A[ 64 ]
Bhadra S[ 96 ]
Bindi
Bizot JC[ 62 ]
Blohm C[ 34 ]
Bold T[ 22 ]
Boos EG[ 3 ]
Borodin
Borras K[ 34 ]
Boscherini D[ 10 ]
Bot D[ 34 ]
Boudry V[ 66 ]
Boutle SK[ 46 ]
Bozovic Jelisavcic I[ 7 ]
Bracinik J[ 9 ]
Brandt G[ 34 ]
Brinkmann M[ 33 ]
Brisson V[ 62 ]
Brock I[ 12 ]
Brownson E[ 53 ]
Brugnera
Brummer N[ 18 ]
Bruncko D[ 41 ]
Bruni A[ 10 ]
Bruni G[ 10 ]
Brzozowska B[ 91 ]
Bunyatyan
Buschhorn G[ 61 ]
Bussey PJ[ 32 ]
Butterworth JM[ 46 ]
Bylsma B[ 18 ]
Bystritskaya L[ 57 ]
Caldwell A[ 61 ]
Campbell AJ[ 34 ]
Capua
Carlin
Cassol Brunner F[ 55 ]
Catterall CD[ 96 ]
Cerny
Cerny K[ 71 ]
Chekanov S[ 6 ]
Chekelian V[ 61 ]
Cholewa A[ 34 ]
Chwastowski J[ 21 ]
Ciborowski
Ciesielski R[ 34 ]
Cifarelli
Cindolo F[ 10 ]
Contin
Contreras JG[ 51 ]
Cooper Sarkar AM[ 63 ]
Coppola N[ 34 ]
Corradi M[ 10 ]
Corriveau F[ 56 ]
Costa
Coughlan JA[ 25 ]
Cozzika G[ 31 ]
Cvach J[ 70 ]
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Dainton JB[ 45 ]
Dal Corso F[ 64 ]
Daum
de Boer Y[ 34 ]
de Favereau J[ 49 ]
DE PASQUALE Salvatore
De Wolf
Deak M[ 34 ]
Del Degan M[ 98 ]
del Peso J[ 54 ]
Delcourt B[ 62 ]
Delvax
Dementiev RK[ 60 ]
Derrick M[ 6 ]
Devenish RCE[ 63 ]
Diaconu C[ 55 ]
Dobur D[ 30 ]
Dodonov V[ 35 ]
Dolgoshein BA[ 59 ]
Dossanov A[ 61 ]
Doyle AT[ 32 ]
Drugakov V[ 97 ]
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Durkin LS[ 18 ]
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Elsen E[ 34 ]
Ermolov PF[ 60 ]
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Falkiewicz A[ 21 ]
Fang S[ 34 ]
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Fazio
FD[ 1
Fedotov A[ 57 ]
Felst R[ 34 ]
Feltesse J[ 31 ]
Ferencei J[ 41 ]
Ferrando J[ 63 ]
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Figiel J[ 21 ]
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Fomenko A[ 58 ]
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Fourletov S[ 86 ]
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Gayler J[ 34 ]
Geiser A[ 34 ]
Ghazaryan S[ 94 ]
Gialas I[ 17 ]
Gladilin LK[ 60 ]
Gladkov D[ 59 ]
Glasman C[ 54 ]
Glazov A[ 34 ]
Glushkov I[ 97 ]
Goerlich L[ 21 ]
Gogitidze N[ 58 ]
Golubkov YA[ 60 ]
Gottlicher P[ 34 ]
Gouzevitch M[ 34 ]
Grab C[ 98 ]
Grabowska Bold I[ 22 ]
Grebenyuk J[ 34 ]
Greenshaw T[ 45 ]
Gregor I[ 34 ]
Grell BR[ 34 ]
Grigorescu
Grindhammer G[ 61 ]
Grzelak G[ 91 ]
Gwenlan C[ 63 ]
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Haas T[ 34 ]
Habib S[ 33 ]
Haidt D[ 34 ]
Hain W[ 34 ]
Hamatsu R[ 82 ]
Hart JC[ 25 ]
Hartmann H[ 12 ]
Hartner G[ 96 ]
Helebrant C[ 34 ]
Henderson RCW[ 44 ]
Hennekemper E[ 37 ]
Henschel H[ 97 ]
Herbst M[ 37 ]
Herrera G[ 52 ]
Hildebrandt M[ 90 ]
Hilger E[ 12 ]
Hiller KH[ 97 ]
Hochman D[ 72 ]
Hoffmann D[ 55 ]
Holm U[ 33 ]
Hori R[ 81 ]
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Horton K[ 63 ]
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Huttmann A[ 34 ]
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Ibrahim ZA[ 42 ]
Idris FM[ 42 ]
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Janssen ME[ 34 ]
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Jones TW[ 46 ]
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Jung AW[ 37 ]
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Kahle B[ 34 ]
Kamaluddin B[ 42 ]
Kananov S[ 79 ]
Kanno T[ 80 ]
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Karshon U[ 72 ]
Karstens F[ 30 ]
Katkov II[ 34 ]
Katzy J[ 34 ]
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Kaur M[ 16 ]
Kenyon IR[ 9 ]
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Khein LA[ 60 ]
Kiesling C[ 61 ]
Kim JY[ 43 ]
Kisielewska D[ 22 ]
Kitamura S[ 82 ]
Klanner R[ 33 ]
Klein M[ 45 ]
Klein U[ 34 ]
Kleinwort C[ 34 ]
Kluge T[ 45 ]
Knutsson A[ 34 ]
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Kogler R[ 61 ]
Kollar D[ 61 ]
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Korzhavina IA[ 60 ]
Kostka P[ 97 ]
Kotanski A[ 23 ]
Kotz U[ 34 ]
Kowalski H[ 34 ]
Kraemer M[ 34 ]
Krastev K[ 34 ]
Kretzschmar J[ 45 ]
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Kulinski P[ 91 ]
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Kutak K[ 34 ]
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Limentani
Ling TY[ 18 ]
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Lohmann W[ 97 ]
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Lohrmann E[ 33 ]
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Malinovski E[ 58 ]
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Margotti A[ 10 ]
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Marti L[ 34 ]
Martin JF[ 86 ]
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Matsumoto T[ 87 ]
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Montanari A[ 34 ]
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Morris JV[ 25 ]
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MU[ 14
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Musgrave B[ 6 ]
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Nania R[ 10 ]
Naumann T[ 97 ]
Newman PR[ 9 ]
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Niebuhr C[ 34 ]
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Nikiforov A[ 34 ]
Ning Y[ 38 ]
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Nowak RJ[ 91 ]
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Pandurovic M[ 7 ]
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Soloviev Y[ 58 ]
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Sosnovtsev V[ 59 ]
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Stadie H[ 33 ]
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Tapper AD[ 48 ]
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Tchoulakov V[ 27 ]
Terron J[ 54 ]
Theedt T[ 34 ]
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Thompson PD[ 9 ]
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Tokushuku K[ 87 ]
Toll T[ 33 ]
Tomasz F[ 41 ]
Tomaszewska J[ 34 ]
Tran TH[ 62 ]
Traynor D[ 47 ]
Trevino AV[ 34 ]
Trinh TN[ 55 ]
Truol P[ 99 ]
Tsakov I[ 78 ]
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Tsurugai T[ 95 ]
Turcato M[ 33 ]
Turnau J[ 21 ]
Tymieniecka T[ 92 ]
Urban K[ 37 ]
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Vallee C[ 55 ]
Van Mechelen
Vazdik Y[ 58 ]
Vazquez
Vinokurova S[ 34 ]
Vlasov NN[ 30 ]
Volchinski V[ 94 ]
Volynets
von den Driesch M[ 34 ]
Walczak R[ 63 ]
Wegener D[ 26 ]
Whitmore JJ[ 89 ]
Whyte J[ 96 ]
Wiggers
Wissing C[ 34 ]
Wlasenko M[ 12 ]
Wolf G[ 34 ]
Wolfe H[ 53 ]
Wrona K[ 34 ]
Wunsch E[ 34 ]
X[ 14
Yagues Molina AG[ 34 ]
Yamada S[ 87 ]
Yamazaki Y[ 87 ]
Yoshida R[ 6 ]
Youngman C[ 34 ]
Zacek J[ 71 ]
Zalesak J[ 70 ]
Zarnecki AF[ 91 ]
Zawiejski L[ 21 ]
Zeuner W[ 34 ]
Zhang Z[ 62 ]
Zhautykov BO[ 3 ]
Zhokin A[ 57 ]
Zhou C[ 56 ]
Zichichi
Zimmermann T[ 98 ]
Zohrabyan H[ 94 ]
Zolko
Zomer F[ 62 ]
Zotkin DS[ 60 ]
Zus R.
Publication venue: 'IOP Publishing'
Publication date: 01/01/2009
Field of study

18 pages, 3 figures, revised version with small textual changesEvents with at least two high transverse momentum leptons (electrons or muons) are studied using the H1 and ZEUS detectors at HERA with an integrated luminosity of 0.94 fb^{-1}. The observed numbers of events are in general agreement with the Standard Model predictions. Seven di- and tri-lepton events are observed in e^+p collision data with a scalar sum of the lepton transverse momenta above 100 GeV while 1.94+-0.17 events are expected. Such events are not observed in e^-p collisions for which 1.19+-0.12 are predicted. Total visible and differential di-electron and di-muon photoproduction cross sections are extracted in a restricted phase space dominated by photon-photon collisions

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Multi-lepton production at high transverse momentum at HERA

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Abdullah WAW[ 11 ]
Abramowicz
Abt I[ 36 ]
Adamczyk L[ 14 ]
Adamus M[ 58 ]
Antonelli
Antonioli P[ 3 ]
Antonov A[ 34 ]
Arneodo
Aushev
Bachynska
Bamberger A[ 20 ]
Barakbaev AN[ 26 ]
Barbagli G[ 18 ]
Bari G[ 3 ]
Barreiro F[ 31 ]
Bartsch D[ 5 ]
Behnke O[ 16 ]
Behr J[ 16 ]
Behrens U[ 16 ]
Bellagamba L[ 3 ]
Bertolin A[ 41 ]
Bhadra S[ 61 ]
Blohm C[ 16 ]
Bold T[ 14 ]
Boos EG[ 26 ]
Borodin
Borras K[ 16 ]
Boscherini D[ 3 ]
Bot D[ 16 ]
Boutle SK[ 56 ]
Brock I[ 5 ]
Brownson E[ 60 ]
Brugnera
Brummer N[ 39 ]
Bruni A[ 3 ]
Bruni G[ 3 ]
Brzozowska B[ 57 ]
Bussey PJ[ 21 ]
Butterworth JM[ 56 ]
Bylsma B[ 39 ]
Caldwell A[ 36 ]
Capua
Carlin
Catterall CD[ 61 ]
Chekanov S[ 1 ]
Chwastowski J[ 13 ]
Ciborowski
Ciesielski R[ 16 ]
Cindolo F[ 3 ]
Cooper Sarkar AM[ 40 ]
Coppola N[ 16 ]
Corradi M[ 3 ]
Corriveau F[ 32 ]
Costa
D'Agostini
D[ 16
D[ 27
Dal Corso F[ 41 ]
de Favereau J[ 30 ]
DE PASQUALE Salvatore
del Peso J[ 31 ]
Dementiev RK[ 35 ]
Derrick M[ 1 ]
Devenish RCE[ 40 ]
Dobur D[ 20 ]
Dolgoshein BA[ 34 ]
Doyle AT[ 21 ]
Drugakov V[ 17 ]
Durkin LS[ 39 ]
Dusini S[ 41 ]
E[ 37
E[ 8
Eisenberg Y[ 59 ]
Ermolov PF[ 35 ]
Eskreys A[ 13 ]
Fang S[ 16 ]
Ferrando J[ 40 ]
Ferrero
Figiel J[ 13 ]
Forrest M[ 21 ]
Foster B[ 40 ]
Fourletov S[ 55 ]
G[ 3
G[ 37
G[ 45
G[ 45
G[ 8
Galas A[ 13 ]
Gallo E[ 18 ]
Garfagnini
Geiser A[ 16 ]
Gialas
Gladilin LK[ 35 ]
Gladkov D[ 34 ]
Glasman C[ 31 ]
Golubkov YA[ 35 ]
Gottlicher P[ 16 ]
Grabowska Bold I[ 14 ]
Grebenyuk J[ 16 ]
Gregor I[ 16 ]
Grigorescu
Grzelak G[ 57 ]
Gwenlan C[ 40 ]
H[ 37
H[ 48
Haas T[ 16 ]
Hain W[ 16 ]
Hamatsu R[ 51 ]
Hart JC[ 47 ]
Hartmann H[ 5 ]
Hartner G[ 61 ]
Hilger E[ 5 ]
Hochman D[ 59 ]
Holm U[ 23 ]
Hori R[ 50 ]
Horton K[ 40 ]
Huttmann A[ 16 ]
I[ 22
I[ 27
I[ 27
I[ 27
I[ 7
Ibrahim ZA[ 11 ]
Idris FM[ 11 ]
Iga Y[ 44 ]
Ingbir R[ 48 ]
Ishitsuka M[ 49 ]
J[ 16
J[ 57
Jakob HP[ 5 ]
Januschek F[ 16 ]
Jimenez M[ 31 ]
Jones TW[ 56 ]
Jungst M[ 5 ]
Kadenko
Kagawa S[ 50 ]
Kahle B[ 16 ]
Kaji H[ 51 ]
Kamaluddin B[ 11 ]
Kananov S[ 48 ]
Kanno T[ 49 ]
Karshon U[ 59 ]
Karstens F[ 20 ]
Katkov II[ 16 ]
Kaur
Kaur M[ 7 ]
Keramidas
Khein LA[ 35 ]
Kim JY[ 10 ]
Kisielewska D[ 14 ]
Kitamura S[ 51 ]
Klanner R[ 23 ]
Klein U[ 16 ]
Koffeman
Kollar D[ 36 ]
Kooijman
Korzhavina IA[ 35 ]
Kotanski A[ 15 ]
Kotz U[ 16 ]
Kowalski H[ 16 ]
Kulinski P[ 57 ]
Kuprash
Kuze M[ 49 ]
Kuzmin VA[ 35 ]
L[ 3
L[ 37
Lacobucci G[ 3 ]
Lee A[ 39 ]
Levchenko BB[ 35 ]
Levy A[ 48 ]
Libov
Limentani
Ling TY[ 39 ]
Lisovyi M[ 16 ]
Lobodzinska E[ 16 ]
Lohmann W[ 17 ]
Lohr B[ 16 ]
Lohrmann E[ 23 ]
Loizides JH[ 56 ]
Long KR[ 24 ]
Longhin A[ 41 ]
Lontkovskyi
Lukasik J[ 14 ]
Lukina OY[ 35 ]
Luzniak P[ 57 ]
M[ 27
M[ 27
M[ 3
M[ 3
M[ 37
M[ 52
M[ 53
M[ 53
M[ 56
M[ 8
M[ 8
Maeda J[ 49 ]
Magill S[ 1 ]
Makarenko
Malka J[ 57 ]
Mankel R[ 16 ]
Margotti A[ 3 ]
Marini
Martin JF[ 55 ]
Matsumoto T[ 25 ]
Mattingly MCK[ 2 ]
Melzer Pellmann IA[ 16 ]
MI[ 52
Miglioranzi S[ 16 ]
Monaco
Montanari A[ 16 ]
Morris JD[ 6 ]
Musgrave B[ 1 ]
Nagano K[ 25 ]
Namsoo T[ 16 ]
Nania R[ 3 ]
Nicholass D[ 1 ]
Nigro
Ning Y[ 12 ]
Noor U[ 61 ]
Notz D[ 16 ]
Nowak RJ[ 57 ]
Nuncio Quiroz AE[ 5 ]
O[ 27
O[ 27
O[ 27
Oh BY[ 43 ]
Okazaki N[ 50 ]
Oliver K[ 40 ]
Olkiewicz K[ 13 ]
Ota O[ 51 ]
P[ 37
Papageorgiu K[ 22 ]
Parenti A[ 16 ]
Paul E[ 5 ]
Pawlak JM[ 57 ]
Pawlik B[ 13 ]
Pelfer
Pellegrino
Perlanski W[ 57 ]
Perrey H[ 23 ]
PG[ 18
Piotrzkowski K[ 30 ]
Plucinski P[ 58 ]
Pokrovskiy NS[ 26 ]
Polini A[ 3 ]
Proskuryakov AS[ 35 ]
Przybycien M[ 14 ]
R[ 41
R[ 41
R[ 52
R[ 7
Raval A[ 43 ]
Reeder DD[ 60 ]
Reisert B[ 36 ]
Ren Z[ 12 ]
Repond J[ 1 ]
Ri YD[ 51 ]
Robertson A[ 40 ]
Roloff P[ 16 ]
Ron E[ 31 ]
Rubinsky I[ 16 ]
Ruspa
S[ 3
S[ 3
S[ 41
S[ 8
Sacchi
Samson U[ 5 ]
Savin AA[ 60 ]
Saxon DH[ 21 ]
Schlenstedt S[ 17 ]
Schleper P[ 23 ]
Schmidke WB[ 36 ]
Schneekloth U[ 16 ]
Schonberg V[ 5 ]
Schorner Sadenius T[ 23 ]
Schwartz J[ 32 ]
Sciulli F[ 12 ]
Shcheglova LM[ 35 ]
Shehzadi R[ 5 ]
Shimizu S[ 50 ]
Singh
Skillicorn IO[ 21 ]
Slominski W[ 15 ]
Smith WH[ 60 ]
Sola
Solano
Son D[ 29 ]
Sorokin
Sosnovtsev V[ 34 ]
Spiridonov
Stadie H[ 23 ]
Stanco L[ 41 ]
Stern A[ 48 ]
Stewart TP[ 55 ]
Stifutkin A[ 34 ]
Stopa R[ 13 ]
Suchkov S[ 34 ]
Suszycki L[ 14 ]
Sztuk J[ 23 ]
Szuba
Szuba
Tapper AD[ 24 ]
Tawara T[ 50 ]
Terron J[ 31 ]
Theedt T[ 16 ]
Tiecke
Tokushuku K[ 25 ]
Tomaszewska J[ 16 ]
Tsurugai T[ 33 ]
Turcato M[ 23 ]
Tymieniecka T[ 58 ]
Uribe Estrada C[ 31 ]
V[ 27
V[ 27
V[ 52
V[ 52
Vazquez
Verbytskyi
Vlasov NN[ 20 ]
Volynets
Walczak R[ 40 ]
Whitmore JJ[ 43 ]
Whyte J.
Wiggers
Wing
Wlasenko M[ 5 ]
Wolf G[ 16 ]
Wolfe H[ 60 ]
Wrona K[ 16 ]
Yagues Molina AG[ 16 ]
Yamada S[ 25 ]
Yamazaki Y[ 25 ]
Yoshida R[ 1 ]
Youngman C[ 16 ]
Zarnecki AF[ 57 ]
Zawiejski L[ 13 ]
Zeuner W[ 16 ]
Zhautykov BO[ 26 ]
Zhou C[ 32 ]
Zolko
Zotkin DS[ 35 ]
Publication venue: Elsevier B.V. Published by Elsevier B.V.
Publication date: 01/01/2009
Field of study

AbstractA 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