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Search for resonance decays to lepton plus jet at DESY HERA and limits on leptoquarks

Title: Search for resonance decays to lepton plus jet at DESY HERA and limits on leptoquarks

Authors: Chekanov, S; Derrick, M; Krakauer, D; Loizides, JH; Magill, S; Musgrave, B; Repond, J; Yoshida, R; Mattingly, MCK; Antonioli, P; Bari, G; Basile, M; Bellagamba, L; Boscherini, D; Bruni, A; Bruni, G; Romeo, GC; Cifarelli, L; Cindolo, F; Contin, A; Corradi, M; De Pasquale, S; Giusti, P; Iacobucci, G; Margotti, 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, HP; Kappes, A; Katz, UF; Kind, O; Meyer, U; Paul, E; Rautenberg, J; Renner, R; Schnurbusch, H; Stifutkin, A; Tandler, J; Voss, KC; Wang, M; Weber, A; Bailey, DS; Brook, NH; Cole, JE; Foster, B; Heath, GP; Heath, HF; Robins, S; Rodrigues, E; Scott, J; Tapper, RJ; Wing, M; Capua, M; Mastroberardino, A; Schioppa, M; Susinno, G; Kim, JY; Kim, YK; Lee, JH; Lim, IT; Pac, MY; Caldwell, A; Helbich, M; Liu, X; Mellado, B; Ning, Y; Paganis, S; Ren, Z; Schmidke, WB; Sciulli, F; Chwastowski, J; Eskreys, A; Figiel, J; Olkiewicz, K; Stopa, P; Zawiejski, L; Adamczyk, L; Bold, T; Grabowska-Bold, I; Kisielewska, D; Kowal, AM; Kowal, M; Kowalski, T; Przybycien, M; Suszycki, L; Szuba, D; Szuba, J; Kotanski, A; Slominski, W; Adler, V; Bauerdick, LAT; Behrens, U; Bloch, I; Borras, K; Chiochia, V; Dannheim, D; Drews, G; Fourletova, J; Fricke, U; Geiser, A; Goebel, F; Gottlicher, P; Gutsche, O; Haas, T; Hain, W; Hartner, GF; Hillert, S; Kahle, B; Kotz, U; Kowalski, H; Kramberger, G; Labes, H; Lelas, D; Lohr, B; Mankel, R; Melzer-Pellmann, IA; Moritz, M; Nguyen, CN; Notz, D; Petrucci, MC; Polini, A; Raval, A; Schneekloth, U; Selonke, F; Wessoleck, H; Wolf, G; Youngman, C; Zeuner, W; Schlenstedt, S; Barbagli, G; Gallo, E; Genta, C; Pelfer, PG; Bamberger, A; Benen, A; Coppola, N; Bell, M; Bussey, PJ; Doyle, AT; Glasman, C; Hamilton, J; Hanlon, S; Lee, SW; Lupi, A; Saxon, DH; Skillicorn, IO; Gialas, I; Bodmann, B; Carli, T; Holm, U; Klimek, K; Krumnack, N; Lohrmann, E; Milite, M; Salehi, H; Stonjek, S; Wick, K; Ziegler, A; Collins-Tooth, C; Foudas, C; Goncalo, R; Long, KR; Tapper, AD; Cloth, P; Filges, D; Kuze, M; Nagano, K; Tokushuku, K; Yamada, S; Yamazaki, Y; Barakbaev, AN; Boos, EG; Pokrovskiy, NS; Zhautykov, BO; Lim, H; Son, D; Piotrzkowski, K; Barreiro, F; Gonzalez, O; Labarga, L; del Peso, J; Tassi, E; Terron, J; Vazquez, M; Barbi, M; Corriveau, F; Gliga, S; Lainesse, J; Padhi, S; Stairs, DG; Tsurugai, T; Antonov, A; Danilov, P; Dolgoshein, BA; Gladkov, D; Sosnovtsev, V; Suchkov, S; Dementiev, RK; Ermolov, PF; Golubkov, YA; Katkov, II; Khein, LA; Korzhavina, IA; Kuzmin, VA; Levchenko, BB; Lukina, OY; Proskuryakov, AS; Shcheglova, LM; Vlasov, NN; Zotkin, SA; Grijpink, S; Koffeman, E; Kooijman, P; Maddox, E; Pellegrino, A; Schagen, S; Tiecke, H; Velthuis, JJ; Wiggers, L; de Wolf, E; Brummer, N; Bylsma, B; Durkin, LS; Ling, TY; Cooper-Sarkar, AM; Cottrell, A; Devenish, RCE; Ferrando, J; Grzelak, G; Patel, S; Sutton, MR; 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, EA; Metlica, F; Oh, BY; Whitmore, JJ; Iga, Y; D'Agostini, G; Marini, G; Nigro, A; Cormack, C; Hart, JC; McCubbin, NA; Heusch, C; Park, IH; Pavel, N; Abramowicz, H; Gabareen, A; Kananov, S; Kreisel, A; Levy, A; Abe, T; Fusayasu, T; Kagawa, S; Kohno, T; Tawara, T; Yamashita, T; Hamatsu, R; Hirose, T; Inuzuka, M; Kitamura, S; Matsuzawa, K; Nishimura, T; Arneodo, M; Ferrero, MI; Monaco, V; Ruspa, M; Sacchi, R; Solano, A; Koop, T; Levman, GM; Martin, JF; Mirea, A; Butterworth, JM; Gwenlan, C; Hall-Wilton, R; Jones, TW; Lightwood, MS; West, BJ; Ciborowski, J; Ciesielski, R; Nowak, RJ; Pawlak, JM; Sztuk, J; Tymieniecka, T; Ukleja, A; Ukleja, J; Zarnecki, AF; Adamus, M; Plucinski, P; Eisenberg, Y; Gladilin, LK; Hochman, D; Karshon, U; Kcira, D; Lammers, S; Li, L; Reeder, DD; Savin, AA; Smith, WH; Deshpande, A; Dhawan, S; Hughes, VW; Straub, PB; Bhadra, S; Catterall, CD; Fourletov, S; Hartner, G; Menary, S; Soares, M; Standage, J|ZEUS Collaboration

Ewha Authors: 박일흥

SCOPUS Author ID: 박일흥

Issue Date: 2003

Journal Title: PHYSICAL REVIEW D

ISSN: 1550-7998

1550-2368

Citation: PHYSICAL REVIEW D vol. 68, no. 5

Publisher: AMER PHYSICAL SOC

Indexed: SCI; SCIE; SCOPUS

Document Type: Article

Abstract: A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed with the ZEUS detector at the DESY ep collider HERA operating at center-of-mass energies of 300 and 318 GeV. An integrated e(+)p luminosity of 114.8 pb(-1) and e(-)p luminosity of 16.7 pb(-1) were used. No evidence for any resonance was found. Limits were derived on the Yukawa coupling lambda as a function of the mass of a hypothetical resonance that has arbitrary decay branching ratios into eq or nuq. These limits also apply to squarks predicted by R-parity-violating supersymmetry. Limits for the production of leptoquarks described by the Buchmuller-Ruckl-Wyler model were also derived for masses up to 400 GeV. For lambda=0.1, leptoquark masses up to 290 GeV are excluded.