Searches for excited fermions in ep collisions at HERA

Chekanov, S; Derrick, M; Krakauer, D; Magill, S; Musgrave, B; Pellegrino, A; 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, Salvatore; Giusti, P; Iacobucci, G; Levi, G; Margotti, A; Massam, T; Nania, R; Palmonari, F; Pesci, A; Sartorelli, G; Zichichi, A; Aghuzumtsyan, G; Brock, I; Goers, S; Hartmann, H; Hilger, E; Irrgang, P; Jakob, Hp; Kappes, A; Katz, Uf; Kerger, R; Kind, O; Paul, E; Rautenberg, J; Schnurbusch, H; Stifutkin, A; Tandler, J; Voss, Kc; Weber, A; Wieber, H; 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; Jeoung, Hy; Kim, Jy; Lee, Jh; Lim, It; Kj, Ma; Pac, My; Caldwell, A; Helbich, M; Liu, X; Mellado, B; Paganis, S; Schmidke, Wb; Sciulli, F; Chwastowski, J; Eskreys, A; Figiel, J; Klimek, K; Olkiewicz, K; Przybycien, Mb; Stopa, P; Zawiejski, L; Bednarek, B; Grabowska Bold, I; Jelen, K; Kisielewska, D; Kowal, Am; Kowal, M; Kowalski, T; Mindur, B; Przybycien, M; Rulikowska Zarebska, E; Suszycki, L; Szuba, D; Szuba, J; Kotanski, A; Bauerdick, Lat; Behrens, U; Borras, K; Chiochia, V; Crittenden, J; Dannheim, D; Desler, K; Drews, G; Fox Murphy, A; Fricke, U; Geiser, A; Goebel, F; Gottlicher, P; Graciani, R; Haas, T; Hain, W; Hartner, Gf; Hebbel, K; Hillert, S; Kotz, U; Kowalski, H; Labes, H; Lohr, B; Mankel, R; Martens, J; Martinez, M; Milite, M; Moritz, M; Notz, D; Petrucci, Mc; Polini, A; Schneekloth, U; Selonke, F; Stonjek, S; Surrow, B; Whitmore, Jj; Wichmann, R; Wolf, G; Youngman, C; Zeuner, W; Coldewey, C; Viani, Ald; Meyer, A; Schlenstedt, S; Barbagli, G; Gallo, E; Pelfer, Pg; Bamberger, A; Benen, A; Coppola, N; Markun, P; Raach, H; Wolfle, S; Bell, M; Bussey, Pj; Doyle, At; Glasman, C; Lee, Sw; Lupi, A; Mccance, Gj; Saxon, Dh; Skillicorn, Io; Bodmann, B; Gendner, N; Holm, U; Salehi, H; Wick, K; Yildirim, A; Ziegler, A; Carli, T; Garfagnini, A; Gialas, I; Lohrmann, E; Foudas, C; Goncalo, R; Long, Kr; Metlica, F; Miller, Db; Tapper, Ad; Walker, R; Cloth, P; Filges, D; Kuze, M; Nagano, K; Tokushuku, K; Yamada, S; Yamazaki, Y; Barakbaev, An; Boos, Eg; Pokrovskiy, Ns; Zhautykov, Bo; Ahn, Sh; Lee, Sb; Park, Sk; Lim, H; Son, D; Barreiro, F; Garcia, G; Gonzalez, O; Labarga, L; del Peso, J; Redondo, I; Terron, J; Vazquez, M; Barbi, M; Bertolin, A; Corriveau, F; Ochs, A; Padhi, S; Stairs, Dg; St Laurent, M; Tsurugai, T; Antonov, A; Bashkirov, V; Danilov, P; Dolgoshein, Ba; Gladkov, D; Sosnovtsev, V; Suchkov, S; Dementiev, Rk; Ermolov, Pf; Golubkov, Ya; Katkov, Ii; Khein, La; Korotkova, Na; Korzhavina, Ia; Kuzmin, Va; Levchenko, Bb; Lukina, Oy; Proskuryakov, As; Shcheglova, Lm; Solomin, An; Vlasov, Nn; Zotkin, Sa; Bokel, C; Engelen, J; Grijpink, S; Koffeman, E; Kooijman, P; Maddox, E; Schagen, S; Tassi, E; Tiecke, H; Tuning, N; Velthuis, Jj; Wiggers, L; de Wolf, E; Brummer, N; Bylsma, B; Durkin, Ls; Gilmore, J; Ginsburg, Cm; Kim, Cl; Ling, Ty; Boogert, S; Cooper Sarkar, Am; Devenish, Rce; Ferrando, J; Grosse Knetter, J; Matsushita, T; Rigby, M; Ruske, O; Sutton, Mr; Walczak, R; Brugnera, R; Carlin, R; Dal Corso, F; Dusini, S; Limentani, S; Longhin, A; Parenti, A; Posocco, M; Stanco, L; Turcato, M; Adamczyk, L; Iannotti, L; By, Oh; Saull, Prb; Toothacker, Ws; Iga, Y; D'Agostini, G; Marini, G; Nigro, A; Cormack, C; Hart, Jc; Mccubbin, Na; Heusch, C; Park, Ih; Pavel, N; Abramowicz, H; Dagan, S; Gabareen, A; Kananov, S; Kreisel, A; Levy, A; Abe, T; Fusayasu, T; Kohno, T; Umemori, K; Yamashita, T; Hamatsu, R; Hirose, T; Inuzuka, M; Kitamura, S; Matsuzawa, K; Nishimura, T; Arneodo, M; Cartiglia, N; Cirio, R; Costa, M; Ferrero, Mi; Maselli, S; Monaco, V; Peroni, C; Ruspa, M; Sacchi, R; Solano, A; Staiano, A; Bailey, Dc; Fagerstroem, Cp; Galea, R; Koop, T; Levman, Gm; Martin, Jf; Mirea, A; Sabetfakhri, A; Butterworth, Jm; Gwenlan, C; Hall Wilton, R; Hayes, Me; Heaphy, Ea; Jones, Tw; Lane, Jb; Lightwood, Ms; West, Bj; Ciborowski, J; Ciesielski, R; Grzelak, G; Nowak, Rj; Pawlak, Jm; Smalska, B; Tymieniecka, T; Ukleja, A; Ukleja, J; Zakrzewski, Ja; Zarnecki, Af; Adamus, M; Plucinski, P; Sztuk, J; Eisenberg, Y; Gladilin, Lk; Hochman, D; Karshon, U; Breitweg, J; Chapin, D; Cross, R; Kcira, D; Lammers, S; Reeder, Dd; Savin, Aa; Smith, Wh; Deshpande, A; Dhawan, S; Hughes, Vw; Straub, Pb; Bhadra, S; Catterall, Cd; Frisken, Wr; Khakzad, M; Menary, S.

doi:10.1016/S0370-2693(02)02863-0

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Searches in ep collisions for heavy excited fermions have been performed with the ZEUS detector at HERA. Excited states of electrons and quarks have been searched for in e+ p collisions at a centre-of-mass energy of 300 GeV using an integrated luminosity of 47.7 pb-1. Excited electrons have been sought via the decays e± → eγ, e± → eZ and e± → vW. Excited quarks have been sought via the decays q± → qγ and q± → qW. A search for excited neutrinos decaying via v± → vγ, v± → vZ and v± → eW is presented using e-p collisions at 318 GeV centre-of-mass energy, corresponding to an integrated luminosity of 16.7 pb-1. No evidence for any excited fermion is found, and limits on the characteristic couplings are derived for masses ≲250 GeV.

Titolo:	Searches for excited fermions in ep collisions at HERA
Autori:	Chekanov, S Derrick, M Krakauer, D Magill, S Musgrave, B Pellegrino, A 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, Salvatore Giusti, P Iacobucci, G Levi, G Margotti, A Massam, T Nania, R Palmonari, F Pesci, A Sartorelli, G Zichichi, A Aghuzumtsyan, G Brock, I Goers, S Hartmann, H Hilger, E Irrgang, P Jakob, Hp Kappes, A Katz, Uf Kerger, R Kind, O Paul, E Rautenberg, J Schnurbusch, H Stifutkin, A Tandler, J Voss, Kc Weber, A Wieber, H 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 Jeoung, Hy Kim, Jy Lee, Jh Lim, It Ma, Kj Pac, My Caldwell, A Helbich, M Liu, X Mellado, B Paganis, S Schmidke, Wb Sciulli, F Chwastowski, J Eskreys, A Figiel, J Klimek, K Olkiewicz, K Przybycien, Mb Stopa, P Zawiejski, L Bednarek, B Grabowska Bold, I Jelen, K Kisielewska, D Kowal, Am Kowal, M Kowalski, T Mindur, B Przybycien, M Rulikowska Zarebska, E Suszycki, L Szuba, D Szuba, J Kotanski, A Bauerdick, Lat Behrens, U Borras, K Chiochia, V Crittenden, J Dannheim, D Desler, K Drews, G Fox Murphy, A Fricke, U Geiser, A Goebel, F Gottlicher, P Graciani, R Haas, T Hain, W Hartner, Gf Hebbel, K Hillert, S Kotz, U Kowalski, H Labes, H Lohr, B Mankel, R Martens, J Martinez, M Milite, M Moritz, M Notz, D Petrucci, Mc Polini, A Schneekloth, U Selonke, F Stonjek, S Surrow, B Whitmore, Jj Wichmann, R Wolf, G Youngman, C Zeuner, W Coldewey, C Viani, Ald Meyer, A Schlenstedt, S Barbagli, G Gallo, E Pelfer, Pg Bamberger, A Benen, A Coppola, N Markun, P Raach, H Wolfle, S Bell, M Bussey, Pj Doyle, At Glasman, C Lee, Sw Lupi, A Mccance, Gj Saxon, Dh Skillicorn, Io Bodmann, B Gendner, N Holm, U Salehi, H Wick, K Yildirim, A Ziegler, A Carli, T Garfagnini, A Gialas, I Lohrmann, E Foudas, C Goncalo, R Long, Kr Metlica, F Miller, Db Tapper, Ad Walker, R Cloth, P Filges, D Kuze, M Nagano, K Tokushuku, K Yamada, S Yamazaki, Y Barakbaev, An Boos, Eg Pokrovskiy, Ns Zhautykov, Bo Ahn, Sh Lee, Sb Park, Sk Lim, H Son, D Barreiro, F Garcia, G Gonzalez, O Labarga, L del Peso, J Redondo, I Terron, J Vazquez, M Barbi, M Bertolin, A Corriveau, F Ochs, A Padhi, S Stairs, Dg St Laurent, M Tsurugai, T Antonov, A Bashkirov, V Danilov, P Dolgoshein, Ba Gladkov, D Sosnovtsev, V Suchkov, S Dementiev, Rk Ermolov, Pf Golubkov, Ya Katkov, Ii Khein, La Korotkova, Na Korzhavina, Ia Kuzmin, Va Levchenko, Bb Lukina, Oy Proskuryakov, As Shcheglova, Lm Solomin, An Vlasov, Nn Zotkin, Sa Bokel, C Engelen, J Grijpink, S Koffeman, E Kooijman, P Maddox, E Schagen, S Tassi, E Tiecke, H Tuning, N Velthuis, Jj Wiggers, L de Wolf, E Brummer, N Bylsma, B Durkin, Ls Gilmore, J Ginsburg, Cm Kim, Cl Ling, Ty Boogert, S Cooper Sarkar, Am Devenish, Rce Ferrando, J Grosse Knetter, J Matsushita, T Rigby, M Ruske, O Sutton, Mr Walczak, R Brugnera, R Carlin, R Dal Corso, F Dusini, S Limentani, S Longhin, A Parenti, A Posocco, M Stanco, L Turcato, M Adamczyk, L Iannotti, L Oh, By Saull, Prb Toothacker, Ws Iga, Y D'Agostini, G Marini, G Nigro, A Cormack, C Hart, Jc Mccubbin, Na Heusch, C Park, Ih Pavel, N Abramowicz, H Dagan, S Gabareen, A Kananov, S Kreisel, A Levy, A Abe, T Fusayasu, T Kohno, T Umemori, K Yamashita, T Hamatsu, R Hirose, T Inuzuka, M Kitamura, S Matsuzawa, K Nishimura, T Arneodo, M Cartiglia, N Cirio, R Costa, M Ferrero, Mi Maselli, S Monaco, V Peroni, C Ruspa, M Sacchi, R Solano, A Staiano, A Bailey, Dc Fagerstroem, Cp Galea, R Koop, T Levman, Gm Martin, Jf Mirea, A Sabetfakhri, A Butterworth, Jm Gwenlan, C Hall Wilton, R Hayes, Me Heaphy, Ea Jones, Tw Lane, Jb Lightwood, Ms West, Bj Ciborowski, J Ciesielski, R Grzelak, G Nowak, Rj Pawlak, Jm Smalska, B Tymieniecka, T Ukleja, A Ukleja, J Zakrzewski, Ja Zarnecki, Af Adamus, M Plucinski, P Sztuk, J Eisenberg, Y Gladilin, Lk Hochman, D Karshon, U Breitweg, J Chapin, D Cross, R Kcira, D Lammers, S Reeder, Dd Savin, Aa Smith, Wh Deshpande, A Dhawan, S Hughes, Vw Straub, Pb Bhadra, S Catterall, Cd Frisken, Wr Khakzad, M Menary, S. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2002
Rivista:	PHYSICS LETTERS. SECTION B
Handle:	http://hdl.handle.net/11386/1064683
Appare nelle tipologie:	1.1.1 Articolo su rivista con DOI

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