DSpace at EWHA: Isolated tau leptons in events with large missing transverse momentum at HERA

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Isolated tau leptons in events with large missing transverse momentum at HERA

Title: Isolated tau leptons in events with large missing transverse momentum at HERA

Authors: Chekanov S.; Derrick M.; Krakauer D.; Loizides J.H.; Magill S.; Miglioranzi S.; Musgrave B.; Repond J.; Yoshida R.; Mattingly M.C.K.; Antonioli P.; Bari G.; Basile M.; Bellagamba L.; Boscherini D.; Bruni A.; Bruni G.; Cara Romeo G.; Cifarelli L.; Cindolo F.; Contin A.; Corradi M.; De Pasquale S.; Giusti P.; Iacobucci G.; Margotti A.; Montanari A.; Nania R.; Palmonari F.; Pesci A.; Sartorelli G.; Zichichi A.; Aghuzumtsyan G.; Bartsch D.; Brock I.; Goers S.; Hartmann H.; Hilger E.; Irrgang P.; Jakob H.-P.; Kind O.; Meyer U.; Paul E.; Rautenberg J.; Renner R.; Stifutkin A.; Tandler J.; Voss K.C.; Wang M.; Weber A.; Bailey D.S.; Brook N.H.; Cole J.E.; Heath G.P.; Namsoo T.; Robins S.; Wing M.; Capua M.; Mastroberardino A.; Schioppa M.; Susinno G.; Kim J.Y.; Kim Y.K.; Lee J.H.; Lim I.T.; Pac M.Y.; Caldwell A.; Helbich M.; Liu X.; Mellado B.; Ning Y.; Paganis S.; Ren Z.; Schmidke W.B.; Sciulli F.; Chwastowski J.; Eskreys A.; Figiel J.; Galas A.; Olkiewicz K.; Stopa P.; Zawiejski L.; Adamczyk L.; Bold T.; Grabowska-Bold I.; Kisielewska D.; Kowal A.M.; Kowal M.; Kowalski T.; Przybycien M.; Suszycki L.; Szuba D.; Szuba J.; Kotanski A.; Slominski W.; Adler V.; Behrens U.; Bloch I.; Borras K.; Chiochia V.; Dannheim D.; Drews G.; Fourletova J.; Fricke U.; Geiser A.; Gottlicher P.; Gutsche O.; Haas T.; Hain W.; Hillert S.; Kahle B.; Kotz U.; Kowalski H.; Kramberger G.; Labes H.; Lelas D.; Lim H.; Lohr B.; Mankel R.; Melzer-Pellmann I.-A.; Nguyen C.N.; Notz D.; Nuncio-Quiroz A.E.; Polini A.; Raval A.; Rurua L.; Schneekloth U.; Stoesslein U.; Wolf G.; Youngman C.; Zeuner W.; Schlenstedt S.; Barbagli G.; Gallo E.; Genta C.; Pelfer P.G.; Bamberger A.; Benen A.; Coppola N.; Bell M.; Bussey P.J.; Doyle A.T.; Ferrando J.; Hamilton J.; Hanlon S.; Saxon D.H.; Skillicorn I.O.; Gialas I.; Bodmann B.; Carli T.; Holm U.; Klimek K.; Krumnack N.; Lohrmann E.; Milite M.; Salehi H.; Schleper P.; Stonjek S.; Wick K.; Ziegler A.; Ziegler A.R.; Collins-Tooth C.; Foudas C.; Goncalo R.; Long K.R.; Tapper A.D.; Cloth P.; Filges D.; Kataoka M.; Nagano K.; Tokushuku K.; Yamada S.; Yamazaki Y.; Barakbaev A.N.; Boos E.G.; Pokrovskiy N.S.; Zhautykov B.O.; Son D.; Piotrzkowski K.; Barreiro F.; Glasman C.; Gonzalez O.; Labarga L.; del Peso J.; Tassi E.; Terron J.; Vazquez M.; Zambrana M.; Barbi M.; Corriveau F.; Gliga S.; Lainesse J.; Padhi S.; Stairs D.G.; Walsh R.; Tsurugai T.; Antonov A.; Danilov P.; Dolgoshein B.A.; Gladkov D.; Sosnovtsev V.; Suchkov S.; Dementiev R.K.; Ermolov P.F.; Golubkov Y.A.; Katkov I.I.; Khein L.A.; Korzhavina I.A.; Kuzmin V.A.; Levchenko B.B.; Lukina O.Y.; Proskuryakov A.S.; Shcheglova L.M.; Vlasov N.N.; Zotkin S.A.; Grijpink S.; Koffeman E.; Kooijman P.; Maddox E.; Pellegrino A.; Schagen S.; Tiecke H.; Velthuis J.J.; Wiggers L.; de Wolf E.; Brummer N.; Bylsma B.; Durkin L.S.; Ling T.Y.; Cooper-Sarkar A.M.; Cottrell A.; Devenish R.C.E.; Foster B.; Grzelak G.; Gwenlan C.; Patel S.; Straub P.B.; Walczak R.; Bertolin A.; Brugnera R.; Carlin R.; Dal Corso F.; Dusini S.; Garfagnini A.; Limentani S.; Longhin A.; Parenti A.; Posocco M.; Stanco L.; Turcato M.; Heaphy E.A.; Metlica F.; Oh B.Y.; Whitmore J.J.; Iga Y.; D'Agostini G.; Marini G.; Nigro A.; Cormack C.; Hart J.C.; McCubbin N.A.; Heusch C.; Park I.H.; Pavel N.; Abramowicz H.; Gabareen A.; Kananov S.; Kreisel A.; Levy A.; Kuze M.; Fusayasu T.; Kagawa S.; Kohno T.; Tawara T.; Yamashita T.; Hamatsu R.; Hirose T.; Inuzuka M.; Kaji H.; Kitamura S.; Matsuzawa K.; Ferrero M.I.; Monaco V.; Sacchi R.; Solano A.; Arneodo M.; Ruspa M.; Koop T.; Levman G.M.; Martin J.F.; Mirea A.; Butterworth J.M.; Hall-Wilton R.; Jones T.W.; Lightwood M.S.; Sutton M.R.; Targett-Adams C.; Ciborowski J.; Ciesielski R.; Luzniak P.; Nowak R.J.; Pawlak J.M.; Sztuk J.; Tymieniecka T.; Ukleja A.; Ukleja J.; Zarnecki A.F.; Adamus M.; Plucinski P.; Eisenberg Y.; Gladilin L.K.; Hochman D.; Karshon U.; Riveline M.; Kcira D.; Lammers S.; Li L.; Reeder D.D.; Rosin M.; Savin A.A.; Smith W.H.; Deshpande A.; Dhawan S.; Bhadra S.; Catterall C.D.; Fourletov S.; Hartner G.; Menary S.; Soares M.; Standage J.

Ewha Authors: 박일흥

SCOPUS Author ID: 박일흥

Issue Date: 2004

Journal Title: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ISSN: 0370-2693

Citation: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics vol. 583, no. 41276, pp. 41 - 58

Indexed: SCI; SCIE; SCOPUS

Document Type: Article

Abstract: A search for events containing isolated tau leptons and large missing transverse momentum, not originating from the tau decay, has been performed with the ZEUS detector at the electron-proton collider HERA, using 130 pb -1 of integrated luminosity. A search was made for isolated tracks coming from hadronic tau decays. Observables based on the internal jet structure were exploited to discriminate between tau decays and quark- or gluon-induced jets. Three tau candidates were found, while 0.40 -0.13 +0.12 were expected from Standard Model processes, such as charged current deep inelastic scattering and single W ±-boson production. To search for heavy-particle decays, a more restrictive selection was applied to isolate tau leptons produced together with a hadronic final state with high transverse momentum. Two candidate events survive, while 0.20±0.05 events are expected from Standard Model processes. © 2004 Published by Elsevier B.V.