Production of [formula omitted] bosons in elastic and quasi-elastic ep collisions at HERA

H Abramowicz,C Youngman,T Namsoo,N Okazaki,V Drugakov,Y Iga,A Polini,Y Aushev,G Bari,E Lohrmann,R Hamatsu,R.C.E Devenish,A Keramidas,S Fazio,S Kananov,T Tsurugai,S De Pasquale,A Galas,V Aushev,P Stopa,B.O Zhautykov,R Brugnera,M.C.K Mattingly,G Grigorescu,O Zabiegalov,A Eskreys,S Dusini,V Bokhonov,J Malka,D Gladkov,O Bachynska,R Yoshida,D Bot,K Wichmann,N Brümmer,M Adamus,B.Y Oh,D Boscherini,L Zawiejski,A Bamberger,A Bruni,P Kaur,J Sztuk-Dambietz,Y Eisenberg,A.S Proskuryakov,B Kahle,K Mujkic,A Hüttmann,R Walczak,L Suszycki,C Blohm,F Mohamad Idris,D.S Zotkin,M Turcato,R Hori,D Szuba,U Samson,B Reisert,F Dal Corso,J Del Peso,O Behnke,B Musgrave,S Schlenstedt,M Przybycień,J Tomaszewska,V Trusov,E Hilger,I Gialas,B Pawlik,V Schönberg,A Garfagnini,K Olkiewicz,A Nigro,A Kotański,V Monaco,T Theedt,M Basile,L Wiggers,M Jüngst,A Longhin,I Abt,G Marini,L Bellagamba,E Brownson,U Schneekloth,A Parenti,U Karshon,N Zhmak,B Löhr,K Wrona,S Antonelli,M Derrick,O Gogota,P Göttlicher,W Hain,B Foster,S Magill,F Januschek,T Kanno,A Raval,H Wolfe,Y.D Ri,D Hochman,P Roloff,M Kuze,F Karstens,O Zenaiev,Ie Korol,D.D Reeder,H Hartmann,J Ciborowski,D Notz,H Kowalski,W Słomiński,G Sartorelli,B Brzozowska,R Ingbir,S Limentani,T Tymieniecka,U Kötz,K Papageorgiu,G Grzelak,A Bertolin,J Szuba,J Grebenyuk,I Rubinsky,A Stifutkin,S Bhadra,M Wlasenko,O Yu Lukina ,J D Morris ,K Nagano,F Cindolo,J M Pawlak ,А Спиридонов ,M P Guzik ,G P Gach ,P Ermolov ,N Stefaniuk,P Bussey ,F Barreiro,G Susinno,N Vlasov ,R Aggarwal,L K Gladilin ,L Cifarelli,Aleksander Filip Żarnecki ,J Schwartz,O Kononenko,N Kondrashova,T Haas,T Schörner-Sadenius,J Y Kim ,R Ciesielski,E Tassi,E Lobodzinska,D Kisielewska,J Maeda,I A Korzhavina ,C D Catterall ,I Katkov ,T W Jones ,K Long ,P G Pelfer ,M Costa,J J Chwastowski ,V Sola,D Dobur,Ning Ye ,A Verbytskyi,S Miglioranzi,A Margotti,A Caldwell,L.M Shcheglova,J Figiel,O Gueta,C Glasman,G Hartner,H Stadie,L A Khein ,J Behr,M Ishitsuka,T P Stewart ,A Gizhko,A Contin,M Arneodo,R Shehzadi,M Ruspa,C Gwenlan,O Kuprash,N Bartosik,M Bindi,W Lohmann,I Grabowska-Bołd,D Lontkovskyi,I.-A Melzer-Pellmann,L S Durkin ,A Stern,G Wolf,S Shimizu,Z A Ibrahim ,Y Yamazaki,Yu A Golubkov ,M Corradi,A Pellegrino,F Sciulli,Z Zolkapli,P Antonioli,U Klein,A G Yagües-Molina ,B B Levchenko ,W B Schmidke ,I M Gregor ,A T Doyle ,E Paul,R Nania,G Bruni,A Savin ,R K Dementiev ,R J Nowak ,D Bartsch,N Coppola,R Sacchi,Inderpal Singh ,Z Ren,J Ferrando,S Kitamura,M Wing,L Stančo ,J Repond,J Terrón,І Каденко ,K Borras,J F Martin ,B A Dolgoshein ,T Bołd,M I Ferrero ,U Behrens,Wolfram Dietrich Zeuner ,N S Pokrovskiy ,A Mastroberardino,S Mergelmeyer,Wan Ahmad Tajuddin Wan Abdullah ,A I Robertson ,D H Saxon ,H Tiecke,J C Hart ,M Lisovyi,A Solano,I Brock,A Zichichi,T Nobe,V Sosnovtsev,P Kooijman,E Gallo,G Barbagli,T Y Ling ,L Adamczyk,R Mankel,K Piotrzkowski,A N Barakbaev ,O Viazlo,A M Cooper-Sarkar ,P Schleper,S Suchkov,P Pluciński,V Libov,A Geiser,S Chekanov,Kyrylo Bondarenko ,W Perlański,I O Skillicorn ,E.G Boos,A Tapper ,W H Smith ,G D’agostini ,I Makarenko,A Levy,K Tokushuku,O Arslan,Y Onishchuk ,H.‐P Jakob ,R Klanner,B Bylsma,M Schioppa,M Capua,M Vázquez,A E Nuncio-Quiroz ,D Son,H Perrey,J Whitmore ,O Turkot,E Koffeman,M Kaur,A Lee,G Dolinska,F Corriveau,А Антонов ,S S Fang ,R Carlin,S Yamada,A Montanari

doi:10.1016/j.physletb.2012.11.051

Production of [formula omitted] bosons in elastic and quasi-elastic ep collisions at HERA

H Abramowicz, C Youngman + Show 300 more

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https://doi.org/10.1016/j.physletb.2012.11.051

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Journal: Physics Letters B	Publication Date: Nov 23, 2012
Citations: 7	License type: other-oa

Affiliation: Universität Hamburg, Deutsches Elektronen-Synchrotron DESY, Institute of Physics and Technology, Taras Shevchenko National University of Kyiv, National Institute for Nuclear Physics, Deutsche Forschungsgemeinschaft, Tokyo Metropolitan University, University of Oxford, University of Amsterdam, Tel Aviv University, Meiji Gakuin University, Polish Academy of Sciences, Institute for Nuclear Research, University of Padua, Andrews University, United States Department of Energy, National Centre for Nuclear Research, Pennsylvania State University, University of Freiburg, Panjab University, Lomonosov Moscow State University, AGH University of Science and Technology, University of Malaya, University of Tokyo, Max Planck Society, Autonomous University of Madrid, University of Bonn, Sapienza University of Rome, Max Planck Institute for Physics, University of Wisconsin–Madison, University of Bologna, Tokyo Institute of Technology, Weizmann Institute of Science, University of Warsaw, York University

#Ep Collisions #Z0 Mass + Show 8 more

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Abstract

The production of Z0 bosons in the reaction ep→eZ0p(⁎), where p(⁎) stands for a proton or a low-mass nucleon resonance, has been studied in ep collisions at HERA using the ZEUS detector. The analysis is based on a data sample collected between 1996 and 2007, amounting to 496 pb−1 of integrated luminosity. The Z0 was measured in the hadronic decay mode. The elasticity of the events was ensured by a cut on ηmax<3.0, where ηmax is the maximum pseudorapidity of energy deposits in the calorimeter defined with respect to the proton beam direction. A signal was observed at the Z0 mass. The cross section of the reaction ep→eZ0p(⁎) was measured to be σ(ep→eZ0p(⁎))=0.13±0.06(stat.)±0.01(syst.) pb, in agreement with the Standard Model prediction of 0.16 pb. This is the first measurement of Z0 production in ep collisions.

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