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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
Issue Date
2004
Journal Title
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN
0370-2693JCR Link
Citation
vol. 583, no. 41276, pp. 41 - 58
Indexed
SCI; SCIE; SCOPUS WOS scopus
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.
DOI
10.1016/j.physletb.2003.12.054
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자연과학대학 > 물리학전공 > Journal papers
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