A search for excited fermions in e+p collisions at HERA

J. Breitweg; M. Derrick; D. Krakauer; S. Magill; D. Mikunas; B. Musgrave; J. Repond; R. Stanek; R. L. Talaga; R. Yoshida; H. Zhang; M. C.K. Mattingly; F. Anselmo; P. Antonioli; G. Bari; M. Basile; L. Bellagamba; D. Boscherini; A. Bruni; G. Bruni; G. Cara Romeo; G. Castellini; L. Cifarelli; F. Cindolo; A. Contin; M. Corradi; S. De Pasquale; I. Gialas; P. Giusti; G. Iacobucci; G. Laurenti; G. Levi; A. Margotti; T. Massam; R. Nania; F. Palmonari; A. Pesci; A. Polini; F. Ricci; G. Sartorelli; Y. Zamora Garcia; A. Zichichi; C. Amelung; A. Bornheim; I. Brock; K. Coböken; J. Crittenden; R. Deffner; M. Eckert; L. Feld; M. Grothe; H. Hartmann; K. Heinloth; L. Heinz; E. Hilger; H. P. Jakob; U. F. Katz; R. Kerger; E. Paul; M. Pfeiffer; Ch Rembser; J. Stamm; R. Wedemeyer; H. Wieber; D. S. Bailey; S. Campbell-Robson; W. N. Cottingham; B. Foster; R. Hall-Wilton; M. E. Hayes; G. P. Heath; H. F. Heath; D. Piccioni; D. G. Roff; R. J. Tapper; M. Arneodo; R. Ayad; M. Capua; A. Garfagnini; L. Iannotti; M. Schioppa; G. Susinno; J. Y. Kim; J. H. Lee; I. T. Lim; M. Y. Pac; A. Caldwell; N. Cartiglia; Z. Jing; W. Liu; B. Mellado; J. A. Parsons; S. Ritz; S. Sampson; F. Sciulli; P. B. Straub; Q. Zhu; P. Borzemski; J. Chwastowski; A. Eskreys; Z. Jakubowski; M. B. Przybycień; M. Zachara; L. Zawiejski; L. Adamczyk; B. Bednarek; K. Jeleń; D. Kisielewska; T. Kowalski; E. Rulikowska-Zarȩbska; L. Suszycki; J. Zaja̧c; Z. Duliński; A. Kotański; G. Abbiendi; L. A.T. Bauerdick; U. Behrens; H. Beier; J. K. Bienlein; G. Cases; O. Deppe; K. Desler; G. Drews; U. Fricke; D. J. Gilkinson; C. Glasman; P. Göttlicher; J. Große-Knetter; T. Haas; W. Hain; D. Hasell; K. P. Johnson; M. Kasemann; W. Koch; U. Kötz; H. Kowalski; J. Labs; L. Lindemann; B. Löhr; M. Löwe; O. Mańczak; J. Milewski; T. Monteiro; J. S.T. Ng; D. Notz; K. Ohrenberg; I. H. Park; A. Pellegrino; F. Pelucchi; K. Piotrzkowski; M. Roco; M. Rohde; J. Roldán; J. J. Ryan; A. A. Savin; U. Schneekloth; F. Selonke; B. Surrow; E. Tassi; T. Voß; D. Westphal; G. Wolf; U. Wollmer; C. Youngman; A. F. Zarnecki; W. Zeuner; M. Adamus; C. Coldewey; Y. Eisenberg; D. Hochman; U. Karshon; D. Revel; W. F. Badgett; D. Chapin; R. Cross; S. Dasu; C. Foudas; R. J. Loveless; S. Mattingly; D. D. Reeder; W. H. Smith; A. Vaiciulis; M. Wodarczyk; S. Bhadra; W. R. Frisken; M. Khakzad; W. B. Schmidke; M. Kuze

doi:10.1007/s002880050585

A search for excited fermions in e⁺p collisions at HERA

J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, M. C.K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. BruniG. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, F. Palmonari, A. Pesci, A. Polini, F. Ricci, G. Sartorelli, Y. Zamora Garcia, A. Zichichi, C. Amelung, A. Bornheim, I. Brock, K. Coböken, J. Crittenden, R. Deffner, M. Eckert, L. Feld, M. Grothe, H. Hartmann, K. Heinloth, L. Heinz, E. Hilger, H. P. Jakob, U. F. Katz, R. Kerger, E. Paul, M. Pfeiffer, Ch Rembser, J. Stamm, R. Wedemeyer, H. Wieber, D. S. Bailey, S. Campbell-Robson, W. N. Cottingham, B. Foster, R. Hall-Wilton, M. E. Hayes, G. P. Heath, H. F. Heath, D. Piccioni, D. G. Roff, R. J. Tapper, M. Arneodo, R. Ayad, M. Capua, A. Garfagnini, L. Iannotti, M. Schioppa, G. Susinno, J. Y. Kim, J. H. Lee, I. T. Lim, M. Y. Pac, A. Caldwell, N. Cartiglia, Z. Jing, W. Liu, B. Mellado, J. A. Parsons, S. Ritz, S. Sampson, F. Sciulli, P. B. Straub, Q. Zhu, P. Borzemski, J. Chwastowski, A. Eskreys, Z. Jakubowski, M. B. Przybycień, M. Zachara, L. Zawiejski, L. Adamczyk, B. Bednarek, K. Jeleń, D. Kisielewska, T. Kowalski, E. Rulikowska-Zarȩbska, L. Suszycki, J. Zaja̧c, Z. Duliński, A. Kotański, G. Abbiendi, L. A.T. Bauerdick, U. Behrens, H. Beier, J. K. Bienlein, G. Cases, O. Deppe, K. Desler, G. Drews, U. Fricke, D. J. Gilkinson, C. Glasman, P. Göttlicher, J. Große-Knetter, T. Haas, W. Hain, D. Hasell, K. P. Johnson, M. Kasemann, W. Koch, U. Kötz, H. Kowalski, J. Labs, L. Lindemann, B. Löhr, M. Löwe, O. Mańczak, J. Milewski, T. Monteiro, J. S.T. Ng, D. Notz, K. Ohrenberg, I. H. Park, A. Pellegrino, F. Pelucchi, K. Piotrzkowski, M. Roco, M. Rohde, J. Roldán, J. J. Ryan, A. A. Savin, U. Schneekloth, F. Selonke, B. Surrow, E. Tassi, T. Voß, D. Westphal, G. Wolf, U. Wollmer, C. Youngman, A. F. Zarnecki, W. Zeuner, M. Adamus, C. Coldewey, Y. Eisenberg, D. Hochman, U. Karshon, D. Revel, W. F. Badgett, D. Chapin, R. Cross, S. Dasu, C. Foudas, R. J. Loveless, S. Mattingly, D. D. Reeder, W. H. Smith, A. Vaiciulis, M. Wodarczyk, S. Bhadra, W. R. Frisken, M. Khakzad, W. B. Schmidke, M. Kuze

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

Using the ZEUS detector at HERA, we have searched for heavy excited states of electrons, neutrinos, and quarks in e⁺p collisions at a center-of-mass energy of 300 GeV. With an integrated luminosity of 9.4 pb^-1, no evidence was found for electroweak production and decay of such states. Limits on the production cross section times branching ratio and on the characteristic couplings, f/Λ, are derived for masses up to 250 GeV. For the particular choice f/Λ = 1/M_f*, we exclude at the 95% confidence level excited electrons with mass between 30 and 200 GeV, excited electron neutrinos with mass between 40 and 96 GeV, and quarks excited electroweakly with mass between 40 and 169 GeV.

Lingua originale	Inglese
pagine (da-a)	631-646
Numero di pagine	16
Rivista	Zeitschrift fur Physik C-Particles and Fields
Volume	76
Numero di pubblicazione	4
DOI	https://doi.org/10.1007/s002880050585
Stato di pubblicazione	Pubblicato - 1 dic 1997
Pubblicato esternamente	Sì

Accesso al documento

10.1007/s002880050585

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Cita questo

Breitweg, J., Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R. L., Yoshida, R., Zhang, H., Mattingly, M. C. K., Anselmo, F., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., ... Kuze, M. (1997). A search for excited fermions in e⁺p collisions at HERA. Zeitschrift fur Physik C-Particles and Fields, 76(4), 631-646. https://doi.org/10.1007/s002880050585

@article{6327919469bb4bfdb19060beb142026f,

title = "A search for excited fermions in e+p collisions at HERA",

abstract = "Using the ZEUS detector at HERA, we have searched for heavy excited states of electrons, neutrinos, and quarks in e+p collisions at a center-of-mass energy of 300 GeV. With an integrated luminosity of 9.4 pb-1, no evidence was found for electroweak production and decay of such states. Limits on the production cross section times branching ratio and on the characteristic couplings, f/Λ, are derived for masses up to 250 GeV. For the particular choice f/Λ = 1/Mf*, we exclude at the 95% confidence level excited electrons with mass between 30 and 200 GeV, excited electron neutrinos with mass between 40 and 96 GeV, and quarks excited electroweakly with mass between 40 and 169 GeV.",

author = "J. Breitweg and M. Derrick and D. Krakauer and S. Magill and D. Mikunas and B. Musgrave and J. Repond and R. Stanek and Talaga, {R. L.} and R. Yoshida and H. Zhang and Mattingly, {M. C.K.} and F. Anselmo and P. Antonioli and G. Bari and M. Basile and L. Bellagamba and D. Boscherini and A. Bruni and G. Bruni and {Cara Romeo}, G. and G. Castellini and L. Cifarelli and F. Cindolo and A. Contin and M. Corradi and {De Pasquale}, S. and I. Gialas and P. Giusti and G. Iacobucci and G. Laurenti and G. Levi and A. Margotti and T. Massam and R. Nania and F. Palmonari and A. Pesci and A. Polini and F. Ricci and G. Sartorelli and {Zamora Garcia}, Y. and A. Zichichi and C. Amelung and A. Bornheim and I. Brock and K. Cob{\"o}ken and J. Crittenden and R. Deffner and M. Eckert and L. Feld and M. Grothe and H. Hartmann and K. Heinloth and L. Heinz and E. Hilger and Jakob, {H. P.} and Katz, {U. F.} and R. Kerger and E. Paul and M. Pfeiffer and Ch Rembser and J. Stamm and R. Wedemeyer and H. Wieber and Bailey, {D. S.} and S. Campbell-Robson and Cottingham, {W. N.} and B. Foster and R. Hall-Wilton and Hayes, {M. E.} and Heath, {G. P.} and Heath, {H. F.} and D. Piccioni and Roff, {D. G.} and Tapper, {R. J.} and M. Arneodo and R. Ayad and M. Capua and A. Garfagnini and L. Iannotti and M. Schioppa and G. Susinno and Kim, {J. Y.} and Lee, {J. H.} and Lim, {I. T.} and Pac, {M. Y.} and A. Caldwell and N. Cartiglia and Z. Jing and W. Liu and B. Mellado and Parsons, {J. A.} and S. Ritz and S. Sampson and F. Sciulli and Straub, {P. B.} and Q. Zhu and P. Borzemski and J. Chwastowski and A. Eskreys and Z. Jakubowski and Przybycie{\'n}, {M. B.} and M. Zachara and L. Zawiejski and L. Adamczyk and B. Bednarek and K. Jele{\'n} and D. Kisielewska and T. Kowalski and E. Rulikowska-Zarȩbska and L. Suszycki and J. Zaj{\c a}c and Z. Duli{\'n}ski and A. Kota{\'n}ski and G. Abbiendi and Bauerdick, {L. A.T.} and U. Behrens and H. Beier and Bienlein, {J. K.} and G. Cases and O. Deppe and K. Desler and G. Drews and U. Fricke and Gilkinson, {D. J.} and C. Glasman and P. G{\"o}ttlicher and J. Gro{\ss}e-Knetter and T. Haas and W. Hain and D. Hasell and Johnson, {K. P.} and M. Kasemann and W. Koch and U. K{\"o}tz and H. Kowalski and J. Labs and L. Lindemann and B. L{\"o}hr and M. L{\"o}we and O. Ma{\'n}czak and J. Milewski and T. Monteiro and Ng, {J. S.T.} and D. Notz and K. Ohrenberg and Park, {I. H.} and A. Pellegrino and F. Pelucchi and K. Piotrzkowski and M. Roco and M. Rohde and J. Rold{\'a}n and Ryan, {J. J.} and Savin, {A. A.} and U. Schneekloth and F. Selonke and B. Surrow and E. Tassi and T. Vo{\ss} and D. Westphal and G. Wolf and U. Wollmer and C. Youngman and Zarnecki, {A. F.} and W. Zeuner and M. Adamus and C. Coldewey and Y. Eisenberg and D. Hochman and U. Karshon and D. Revel and Badgett, {W. F.} and D. Chapin and R. Cross and S. Dasu and C. Foudas and Loveless, {R. J.} and S. Mattingly and Reeder, {D. D.} and Smith, {W. H.} and A. Vaiciulis and M. Wodarczyk and S. Bhadra and Frisken, {W. R.} and M. Khakzad and Schmidke, {W. B.} and M. Kuze",

note = "Funding Information: A also at IROE Florence, Italy B now at Univ. of Salerno and INFN Napoli, Italy C now at Univ. of Crete, Greece D supported by Worldlab, Lausanne, Switzerland E now OPAL F retired G also at University of Torino and Alexander von Humboldt Fellow at University of Hamburg H now at Dongshin University, Naju, Korea I also at DESY J Alfred P. Sloan Foundation Fellow K supported by the Polish State Committee for Scientific Research, grant No. 2P03B14912 L supported by an EC fellowship number ERBFMBICT 950172 M now at SAP A.G., Walldorf N visitor from Florida State University O now at ALCATEL Mobile Communication GmbH, Stuttgart P supported by European Community Program PRAXIS XXI Q now at DESY-Group FDET R now at DESY Computer Center S visitor from Kyungpook National University, Taegu, Korea, partially supported by DESY T now at Fermi National Accelerator Laboratory (FNAL), Batavia, IL, USA U now at NORCOM Infosystems, Hamburg V now at Oxford University, supported by DAAD fellowship HSP II-AUFE III W now at ATLAS Collaboration, Univ. of Munich X now at Clinical Operational Research Unit, University College, London Y on leave from MSU, supported by the GIF, contract I-0444-176.07/95 Z now a self-employed consultant AA supported by an EC fellowship AB PPARC Post-doctoral Fellow AC now at Conduit Communications Ltd., London, U.K. AD now at CERN AE supported by JSPS Postdoctoral Fellowships for Research Abroad AF now at Wayne State University, Detroit AG now at Department of Energy, Washington AH now at Lawrence Berkeley Laboratory, Berkeley, CA, USA AI now at Yale University, New Haven, CT AJ supported by a MINERVA Fellowship AK partially supported by DESY AL present address: Tokyo Metropolitan College of Allied Medical Sciences, Tokyo 116, Japan AM supported by the Polish State Committee for Scientific Research, grant No. 2P03B09308 AN supported by the Polish State Committee for Scientific Research, grant No. 2P03B09208 Funding Information: a supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) b supported by the FCAR of Qu{\'e}bec, Canada Funding Information: c supported by the German Federal Ministry for Education and Science, Research and Technology (BMBF), under contract numbers 057BN19P, 057FR19P, 057HH19P, 057HH29P, 057SI75I d supported by the MINERVA Gesellschaft f{\"u}r Forschung GmbH, the German Israeli Foundation, and the U.S.-Israel Binational Science Foundation e supported by the German Israeli Foundation, and by the Israel Science Foundation f supported by the Italian National Institute for Nuclear Physics (INFN) g supported by the Japanese Ministry of Education, Science and Culture (the Monbusho) and its grants for Scientific Research h supported by the Korean Ministry of Education and Korea Science and Engineering Foundation i supported by the Netherlands Foundation for Research on Matter (FOM) j supported by the Polish State Committee for Scientific Research, grant No. 115/E-343/SPUB/P03/002/97, 2P03B10512, 2P03B10612, 2P03B14212, 2P03B10412 k supported by the Polish State Committee for Scientific Research (grant No. 2P03B08308) and Foundation for Polish-German Collaboration l partially supported by the German Federal Ministry for Education and Science, Research and Technology (BMBF) m supported by the German Federal Ministry for Education and Science, Research and Technology (BMBF), and the Fund of Fundamental Research of Russian Ministry of Science and Education and by INTAS-Grant No. 93-63 n supported by the Spanish Ministry of Education and Science through funds provided by CICYT o supported by the Particle Physics and Astronomy Research Council p supported by the US Department of Energy q supported by the US National Science Foundation",

year = "1997",

month = dec,

day = "1",

doi = "10.1007/s002880050585",

language = "English",

volume = "76",

pages = "631--646",

journal = "Zeitschrift fur Physik C-Particles and Fields",

issn = "0170-9739",

publisher = "Springer New York",

number = "4",

}

Breitweg, J, Derrick, M, Krakauer, D, Magill, S, Mikunas, D, Musgrave, B, Repond, J, Stanek, R, Talaga, RL, Yoshida, R, Zhang, H, Mattingly, MCK, Anselmo, F, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cara Romeo, G, Castellini, G, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Gialas, I, Giusti, P, Iacobucci, G, Laurenti, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Polini, A, Ricci, F, Sartorelli, G, Zamora Garcia, Y, Zichichi, A, Amelung, C, Bornheim, A, Brock, I, Coböken, K, Crittenden, J, Deffner, R, Eckert, M, Feld, L, Grothe, M, Hartmann, H, Heinloth, K, Heinz, L, Hilger, E, Jakob, HP, Katz, UF, Kerger, R, Paul, E, Pfeiffer, M, Rembser, C, Stamm, J, Wedemeyer, R, Wieber, H, Bailey, DS, Campbell-Robson, S, Cottingham, WN, Foster, B, Hall-Wilton, R, Hayes, ME, Heath, GP, Heath, HF, Piccioni, D, Roff, DG, Tapper, RJ, Arneodo, M, Ayad, R, Capua, M, Garfagnini, A, Iannotti, L, Schioppa, M, Susinno, G, Kim, JY, Lee, JH, Lim, IT, Pac, MY, Caldwell, A, Cartiglia, N, Jing, Z, Liu, W, Mellado, B, Parsons, JA, Ritz, S, Sampson, S, Sciulli, F, Straub, PB, Zhu, Q, Borzemski, P, Chwastowski, J, Eskreys, A, Jakubowski, Z, Przybycień, MB, Zachara, M, Zawiejski, L, Adamczyk, L, Bednarek, B, Jeleń, K, Kisielewska, D, Kowalski, T, Rulikowska-Zarȩbska, E, Suszycki, L, Zaja̧c, J, Duliński, Z, Kotański, A, Abbiendi, G, Bauerdick, LAT, Behrens, U, Beier, H, Bienlein, JK, Cases, G, Deppe, O, Desler, K, Drews, G, Fricke, U, Gilkinson, DJ, Glasman, C, Göttlicher, P, Große-Knetter, J, Haas, T, Hain, W, Hasell, D, Johnson, KP, Kasemann, M, Koch, W, Kötz, U, Kowalski, H, Labs, J, Lindemann, L, Löhr, B, Löwe, M, Mańczak, O, Milewski, J, Monteiro, T, Ng, JST, Notz, D, Ohrenberg, K, Park, IH, Pellegrino, A, Pelucchi, F, Piotrzkowski, K, Roco, M, Rohde, M, Roldán, J, Ryan, JJ, Savin, AA, Schneekloth, U, Selonke, F, Surrow, B, Tassi, E, Voß, T, Westphal, D, Wolf, G, Wollmer, U, Youngman, C, Zarnecki, AF, Zeuner, W, Adamus, M, Coldewey, C, Eisenberg, Y, Hochman, D, Karshon, U, Revel, D, Badgett, WF, Chapin, D, Cross, R, Dasu, S, Foudas, C, Loveless, RJ, Mattingly, S, Reeder, DD, Smith, WH, Vaiciulis, A, Wodarczyk, M, Bhadra, S, Frisken, WR, Khakzad, M, Schmidke, WB & Kuze, M 1997, 'A search for excited fermions in e⁺p collisions at HERA', Zeitschrift fur Physik C-Particles and Fields, vol. 76, n. 4, pagg. 631-646. https://doi.org/10.1007/s002880050585

TY - JOUR

T1 - A search for excited fermions in e+p collisions at HERA

AU - Breitweg, J.

AU - Derrick, M.

AU - Krakauer, D.

AU - Magill, S.

AU - Mikunas, D.

AU - Musgrave, B.

AU - Repond, J.

AU - Stanek, R.

AU - Talaga, R. L.

AU - Yoshida, R.

AU - Zhang, H.

AU - Mattingly, M. C.K.

AU - Anselmo, F.

AU - Antonioli, P.

AU - Bari, G.

AU - Basile, M.

AU - Bellagamba, L.

AU - Boscherini, D.

AU - Bruni, A.

AU - Bruni, G.

AU - Cara Romeo, G.

AU - Castellini, G.

AU - Cifarelli, L.

AU - Cindolo, F.

AU - Contin, A.

AU - Corradi, M.

AU - De Pasquale, S.

AU - Gialas, I.

AU - Giusti, P.

AU - Iacobucci, G.

AU - Laurenti, G.

AU - Levi, G.

AU - Margotti, A.

AU - Massam, T.

AU - Nania, R.

AU - Palmonari, F.

AU - Pesci, A.

AU - Polini, A.

AU - Ricci, F.

AU - Sartorelli, G.

AU - Zamora Garcia, Y.

AU - Zichichi, A.

AU - Amelung, C.

AU - Bornheim, A.

AU - Brock, I.

AU - Coböken, K.

AU - Crittenden, J.

AU - Deffner, R.

AU - Eckert, M.

AU - Feld, L.

AU - Grothe, M.

AU - Hartmann, H.

AU - Heinloth, K.

AU - Heinz, L.

AU - Hilger, E.

AU - Jakob, H. P.

AU - Katz, U. F.

AU - Kerger, R.

AU - Paul, E.

AU - Pfeiffer, M.

AU - Rembser, Ch

AU - Stamm, J.

AU - Wedemeyer, R.

AU - Wieber, H.

AU - Bailey, D. S.

AU - Campbell-Robson, S.

AU - Cottingham, W. N.

AU - Foster, B.

AU - Hall-Wilton, R.

AU - Hayes, M. E.

AU - Heath, G. P.

AU - Heath, H. F.

AU - Piccioni, D.

AU - Roff, D. G.

AU - Tapper, R. J.

AU - Arneodo, M.

AU - Ayad, R.

AU - Capua, M.

AU - Garfagnini, A.

AU - Iannotti, L.

AU - Schioppa, M.

AU - Susinno, G.

AU - Kim, J. Y.

AU - Lee, J. H.

AU - Lim, I. T.

AU - Pac, M. Y.

AU - Caldwell, A.

AU - Cartiglia, N.

AU - Jing, Z.

AU - Liu, W.

AU - Mellado, B.

AU - Parsons, J. A.

AU - Ritz, S.

AU - Sampson, S.

AU - Sciulli, F.

AU - Straub, P. B.

AU - Zhu, Q.

AU - Borzemski, P.

AU - Chwastowski, J.

AU - Eskreys, A.

AU - Jakubowski, Z.

AU - Przybycień, M. B.

AU - Zachara, M.

AU - Zawiejski, L.

AU - Adamczyk, L.

AU - Bednarek, B.

AU - Jeleń, K.

AU - Kisielewska, D.

AU - Kowalski, T.

AU - Rulikowska-Zarȩbska, E.

AU - Suszycki, L.

AU - Zaja̧c, J.

AU - Duliński, Z.

AU - Kotański, A.

AU - Abbiendi, G.

AU - Bauerdick, L. A.T.

AU - Behrens, U.

AU - Beier, H.

AU - Bienlein, J. K.

AU - Cases, G.

AU - Deppe, O.

AU - Desler, K.

AU - Drews, G.

AU - Fricke, U.

AU - Gilkinson, D. J.

AU - Glasman, C.

AU - Göttlicher, P.

AU - Große-Knetter, J.

AU - Haas, T.

AU - Hain, W.

AU - Hasell, D.

AU - Johnson, K. P.

AU - Kasemann, M.

AU - Koch, W.

AU - Kötz, U.

AU - Kowalski, H.

AU - Labs, J.

AU - Lindemann, L.

AU - Löhr, B.

AU - Löwe, M.

AU - Mańczak, O.

AU - Milewski, J.

AU - Monteiro, T.

AU - Ng, J. S.T.

AU - Notz, D.

AU - Ohrenberg, K.

AU - Park, I. H.

AU - Pellegrino, A.

AU - Pelucchi, F.

AU - Piotrzkowski, K.

AU - Roco, M.

AU - Rohde, M.

AU - Roldán, J.

AU - Ryan, J. J.

AU - Savin, A. A.

AU - Schneekloth, U.

AU - Selonke, F.

AU - Surrow, B.

AU - Tassi, E.

AU - Voß, T.

AU - Westphal, D.

AU - Wolf, G.

AU - Wollmer, U.

AU - Youngman, C.

AU - Zarnecki, A. F.

AU - Zeuner, W.

AU - Adamus, M.

AU - Coldewey, C.

AU - Eisenberg, Y.

AU - Hochman, D.

AU - Karshon, U.

AU - Revel, D.

AU - Badgett, W. F.

AU - Chapin, D.

AU - Cross, R.

AU - Dasu, S.

AU - Foudas, C.

AU - Loveless, R. J.

AU - Mattingly, S.

AU - Reeder, D. D.

AU - Smith, W. H.

AU - Vaiciulis, A.

AU - Wodarczyk, M.

AU - Bhadra, S.

AU - Frisken, W. R.

AU - Khakzad, M.

AU - Schmidke, W. B.

AU - Kuze, M.

N1 - Funding Information: A also at IROE Florence, Italy B now at Univ. of Salerno and INFN Napoli, Italy C now at Univ. of Crete, Greece D supported by Worldlab, Lausanne, Switzerland E now OPAL F retired G also at University of Torino and Alexander von Humboldt Fellow at University of Hamburg H now at Dongshin University, Naju, Korea I also at DESY J Alfred P. Sloan Foundation Fellow K supported by the Polish State Committee for Scientific Research, grant No. 2P03B14912 L supported by an EC fellowship number ERBFMBICT 950172 M now at SAP A.G., Walldorf N visitor from Florida State University O now at ALCATEL Mobile Communication GmbH, Stuttgart P supported by European Community Program PRAXIS XXI Q now at DESY-Group FDET R now at DESY Computer Center S visitor from Kyungpook National University, Taegu, Korea, partially supported by DESY T now at Fermi National Accelerator Laboratory (FNAL), Batavia, IL, USA U now at NORCOM Infosystems, Hamburg V now at Oxford University, supported by DAAD fellowship HSP II-AUFE III W now at ATLAS Collaboration, Univ. of Munich X now at Clinical Operational Research Unit, University College, London Y on leave from MSU, supported by the GIF, contract I-0444-176.07/95 Z now a self-employed consultant AA supported by an EC fellowship AB PPARC Post-doctoral Fellow AC now at Conduit Communications Ltd., London, U.K. AD now at CERN AE supported by JSPS Postdoctoral Fellowships for Research Abroad AF now at Wayne State University, Detroit AG now at Department of Energy, Washington AH now at Lawrence Berkeley Laboratory, Berkeley, CA, USA AI now at Yale University, New Haven, CT AJ supported by a MINERVA Fellowship AK partially supported by DESY AL present address: Tokyo Metropolitan College of Allied Medical Sciences, Tokyo 116, Japan AM supported by the Polish State Committee for Scientific Research, grant No. 2P03B09308 AN supported by the Polish State Committee for Scientific Research, grant No. 2P03B09208 Funding Information: a supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) b supported by the FCAR of Québec, Canada Funding Information: c supported by the German Federal Ministry for Education and Science, Research and Technology (BMBF), under contract numbers 057BN19P, 057FR19P, 057HH19P, 057HH29P, 057SI75I d supported by the MINERVA Gesellschaft für Forschung GmbH, the German Israeli Foundation, and the U.S.-Israel Binational Science Foundation e supported by the German Israeli Foundation, and by the Israel Science Foundation f supported by the Italian National Institute for Nuclear Physics (INFN) g supported by the Japanese Ministry of Education, Science and Culture (the Monbusho) and its grants for Scientific Research h supported by the Korean Ministry of Education and Korea Science and Engineering Foundation i supported by the Netherlands Foundation for Research on Matter (FOM) j supported by the Polish State Committee for Scientific Research, grant No. 115/E-343/SPUB/P03/002/97, 2P03B10512, 2P03B10612, 2P03B14212, 2P03B10412 k supported by the Polish State Committee for Scientific Research (grant No. 2P03B08308) and Foundation for Polish-German Collaboration l partially supported by the German Federal Ministry for Education and Science, Research and Technology (BMBF) m supported by the German Federal Ministry for Education and Science, Research and Technology (BMBF), and the Fund of Fundamental Research of Russian Ministry of Science and Education and by INTAS-Grant No. 93-63 n supported by the Spanish Ministry of Education and Science through funds provided by CICYT o supported by the Particle Physics and Astronomy Research Council p supported by the US Department of Energy q supported by the US National Science Foundation

PY - 1997/12/1

Y1 - 1997/12/1

N2 - Using the ZEUS detector at HERA, we have searched for heavy excited states of electrons, neutrinos, and quarks in e+p collisions at a center-of-mass energy of 300 GeV. With an integrated luminosity of 9.4 pb-1, no evidence was found for electroweak production and decay of such states. Limits on the production cross section times branching ratio and on the characteristic couplings, f/Λ, are derived for masses up to 250 GeV. For the particular choice f/Λ = 1/Mf*, we exclude at the 95% confidence level excited electrons with mass between 30 and 200 GeV, excited electron neutrinos with mass between 40 and 96 GeV, and quarks excited electroweakly with mass between 40 and 169 GeV.

AB - Using the ZEUS detector at HERA, we have searched for heavy excited states of electrons, neutrinos, and quarks in e+p collisions at a center-of-mass energy of 300 GeV. With an integrated luminosity of 9.4 pb-1, no evidence was found for electroweak production and decay of such states. Limits on the production cross section times branching ratio and on the characteristic couplings, f/Λ, are derived for masses up to 250 GeV. For the particular choice f/Λ = 1/Mf*, we exclude at the 95% confidence level excited electrons with mass between 30 and 200 GeV, excited electron neutrinos with mass between 40 and 96 GeV, and quarks excited electroweakly with mass between 40 and 169 GeV.

UR - http://www.scopus.com/inward/record.url?scp=0000764477&partnerID=8YFLogxK

U2 - 10.1007/s002880050585

DO - 10.1007/s002880050585

M3 - Article

SN - 0170-9739

VL - 76

SP - 631

EP - 646

JO - Zeitschrift fur Physik C-Particles and Fields

JF - Zeitschrift fur Physik C-Particles and Fields

IS - 4