Search for excited leptons in Z0 decay

D. Decamp; B. Deschizeaux; J. P. Lees; M. N. Minard; J. M. Crespo; M. Delfino; E. Fernandez; M. Martinez; R. Miquel; Ll M. Mir; S. Orteu; A. Pacheco; J. A. Perlas; E. Tubau; M. G. Catanesi; M. De Palma; A. Farilla; G. Iaselli; G. Maggi; S. Natali; S. Nuzzo; A. Ranieri; G. Raso; F. Romano; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; G. Zito; H. Hu; D. Huang; J. Lin; T. Ruan; T. Wang; W. Wu; Y. Xie; D. Xu; R. Xu; J. Zhang; W. Zhao; H. Albrecht; W. B. Atwood; F. Bird; E. Blucher; T. H. Burnett; T. Charity; H. Drevermann; Ll Garrido; C. Grab; R. Hagelberg; S. Haywood; B. Jost; M. Kasemann; G. Kellner; J. Knobloch; A. Lacourt; I. Lehraus; T. Lohse; D. Lüke; A. Marchioro; P. Mato; J. May; A. Minten; A. Miotto; P. Palazzi; M. Pepe-Altarelli; F. Ranjard; A. Roth; J. Rothberg; H. Rotscheidt; W. Von Rüden; R. St Denis; D. Schlatter; M. Takashima; M. Talby; H. Taureg; W. Tejessy; H. Wachsmuth; S. Wheeler; W. Wiedenmann; W. Witzeling; J. Wotschack; Z. Ajaltouni; M. Bardadin-Otwinowska; A. Falvard; P. Gay; P. Henrard; J. Jousset; B. Michel; J. C. Montret; D. Pallin; P. Perret; J. Proriol; F. Prulhiére; J. D. Hansen; J. R. Hansen; P. H. Hansen; R. Møllerud; G. Petersen; E. Simopoulou

doi:10.1016/0370-2693(90)90391-I

Search for excited leptons in Z⁰ decay

D. Decamp, B. Deschizeaux, J. P. Lees, M. N. Minard, J. M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll M. Mir, S. Orteu, A. Pacheco, J. A. Perlas, E. Tubau, M. G. Catanesi, M. De Palma, A. Farilla, G. Iaselli, G. Maggi, S. NataliS. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, H. Hu, D. Huang, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, H. Albrecht, W. B. Atwood, F. Bird, E. Blucher, T. H. Burnett, T. Charity, H. Drevermann, Ll Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kasemann, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, A. Roth, J. Rothberg, H. Rotscheidt, W. Von Rüden, R. St Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J. C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhiére, J. D. Hansen, J. R. Hansen, P. H. Hansen, R. Møllerud, G. Petersen, E. Simopoulou

Department of Physics

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33 Citations (Scopus)

Abstract

We have looked for evidence of excited lepton production in Z0 decay observed in the ALEPH detector at LEP. We find no ℓℓγγ events and set new limits at 95% CL on ℓ* masses at 44.6, 44.6 and 41.2 GeV/c2 for e*, μ* and τ* respectively. Observed events in the ℓℓγ channels are consistent with radiative effects and we set limits for the first time on the ℓ*ℓZ coupling for ℓ* masses in the range up to 86 GeV/c2. © 1990.

Original language	English
Pages (from-to)	501-510
Journal	Physics Letters B
Volume	236
Issue number	4
DOIs	https://doi.org/10.1016/0370-2693(90)90391-I
Publication status	Published - 1 Mar 1990

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10.1016/0370-2693(90)90391-I

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Decamp, D., Deschizeaux, B., Lees, J. P., Minard, M. N., Crespo, J. M., Delfino, M., Fernandez, E., Martinez, M., Miquel, R., Mir, L. M., Orteu, S., Pacheco, A., Perlas, J. A., Tubau, E., Catanesi, M. G., De Palma, M., Farilla, A., Iaselli, G., Maggi, G., ... Simopoulou, E. (1990). Search for excited leptons in Z⁰ decay. Physics Letters B, 236(4), 501-510. https://doi.org/10.1016/0370-2693(90)90391-I

@article{4927ca3441f547119f8526636eff326f,

title = "Search for excited leptons in Z0 decay",

abstract = "We have looked for evidence of excited lepton production in Z0 decay observed in the ALEPH detector at LEP. We find no ℓℓγγ events and set new limits at 95% CL on ℓ* masses at 44.6, 44.6 and 41.2 GeV/c2 for e*, μ* and τ* respectively. Observed events in the ℓℓγ channels are consistent with radiative effects and we set limits for the first time on the ℓ*ℓZ coupling for ℓ* masses in the range up to 86 GeV/c2. {\textcopyright} 1990.",

author = "D. Decamp and B. Deschizeaux and Lees, {J. P.} and Minard, {M. N.} and Crespo, {J. M.} and M. Delfino and E. Fernandez and M. Martinez and R. Miquel and Mir, {Ll M.} and S. Orteu and A. Pacheco and Perlas, {J. A.} and E. Tubau and Catanesi, {M. G.} and {De Palma}, M. and A. Farilla and G. Iaselli and G. Maggi and S. Natali and S. Nuzzo and A. Ranieri and G. Raso and F. Romano and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and G. Zito and H. Hu and D. Huang and J. Lin and T. Ruan and T. Wang and W. Wu and Y. Xie and D. Xu and R. Xu and J. Zhang and W. Zhao and H. Albrecht and Atwood, {W. B.} and F. Bird and E. Blucher and Burnett, {T. H.} and T. Charity and H. Drevermann and Ll Garrido and C. Grab and R. Hagelberg and S. Haywood and B. Jost and M. Kasemann and G. Kellner and J. Knobloch and A. Lacourt and I. Lehraus and T. Lohse and D. L{\"u}ke and A. Marchioro and P. Mato and J. May and A. Minten and A. Miotto and P. Palazzi and M. Pepe-Altarelli and F. Ranjard and A. Roth and J. Rothberg and H. Rotscheidt and {Von R{\"u}den}, W. and Denis, {R. St} and D. Schlatter and M. Takashima and M. Talby and H. Taureg and W. Tejessy and H. Wachsmuth and S. Wheeler and W. Wiedenmann and W. Witzeling and J. Wotschack and Z. Ajaltouni and M. Bardadin-Otwinowska and A. Falvard and P. Gay and P. Henrard and J. Jousset and B. Michel and Montret, {J. C.} and D. Pallin and P. Perret and J. Proriol and F. Prulhi{\'e}re and Hansen, {J. D.} and Hansen, {J. R.} and Hansen, {P. H.} and R. M{\o}llerud and G. Petersen and E. Simopoulou",

year = "1990",

month = mar,

day = "1",

doi = "10.1016/0370-2693(90)90391-I",

language = "English",

volume = "236",

pages = "501--510",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "4",

}

Decamp, D, Deschizeaux, B, Lees, JP, Minard, MN, Crespo, JM , Delfino, M , Fernandez, E, Martinez, M, Miquel, R, Mir, LM, Orteu, S, Pacheco, A, Perlas, JA, Tubau, E, Catanesi, MG, De Palma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Hu, H, Huang, D, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Albrecht, H, Atwood, WB, Bird, F, Blucher, E, Burnett, TH, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Lüke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepe-Altarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Von Rüden, W, Denis, RS, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadin-Otwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, JC, Pallin, D, Perret, P, Proriol, J, Prulhiére, F, Hansen, JD, Hansen, JR, Hansen, PH, Møllerud, R, Petersen, G & Simopoulou, E 1990, 'Search for excited leptons in Z⁰ decay', Physics Letters B, vol. 236, no. 4, pp. 501-510. https://doi.org/10.1016/0370-2693(90)90391-I

TY - JOUR

T1 - Search for excited leptons in Z0 decay

AU - Decamp, D.

AU - Deschizeaux, B.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Crespo, J. M.

AU - Delfino, M.

AU - Fernandez, E.

AU - Martinez, M.

AU - Miquel, R.

AU - Mir, Ll M.

AU - Orteu, S.

AU - Pacheco, A.

AU - Perlas, J. A.

AU - Tubau, E.

AU - Catanesi, M. G.

AU - De Palma, M.

AU - Farilla, A.

AU - Iaselli, G.

AU - Maggi, G.

AU - Natali, S.

AU - Nuzzo, S.

AU - Ranieri, A.

AU - Raso, G.

AU - Romano, F.

AU - Ruggieri, F.

AU - Selvaggi, G.

AU - Silvestris, L.

AU - Tempesta, P.

AU - Zito, G.

AU - Hu, H.

AU - Huang, D.

AU - Lin, J.

AU - Ruan, T.

AU - Wang, T.

AU - Wu, W.

AU - Xie, Y.

AU - Xu, D.

AU - Xu, R.

AU - Zhang, J.

AU - Zhao, W.

AU - Albrecht, H.

AU - Atwood, W. B.

AU - Bird, F.

AU - Blucher, E.

AU - Burnett, T. H.

AU - Charity, T.

AU - Drevermann, H.

AU - Garrido, Ll

AU - Grab, C.

AU - Hagelberg, R.

AU - Haywood, S.

AU - Jost, B.

AU - Kasemann, M.

AU - Kellner, G.

AU - Knobloch, J.

AU - Lacourt, A.

AU - Lehraus, I.

AU - Lohse, T.

AU - Lüke, D.

AU - Marchioro, A.

AU - Mato, P.

AU - May, J.

AU - Minten, A.

AU - Miotto, A.

AU - Palazzi, P.

AU - Pepe-Altarelli, M.

AU - Ranjard, F.

AU - Roth, A.

AU - Rothberg, J.

AU - Rotscheidt, H.

AU - Von Rüden, W.

AU - Denis, R. St

AU - Schlatter, D.

AU - Takashima, M.

AU - Talby, M.

AU - Taureg, H.

AU - Tejessy, W.

AU - Wachsmuth, H.

AU - Wheeler, S.

AU - Wiedenmann, W.

AU - Witzeling, W.

AU - Wotschack, J.

AU - Ajaltouni, Z.

AU - Bardadin-Otwinowska, M.

AU - Falvard, A.

AU - Gay, P.

AU - Henrard, P.

AU - Jousset, J.

AU - Michel, B.

AU - Montret, J. C.

AU - Pallin, D.

AU - Perret, P.

AU - Proriol, J.

AU - Prulhiére, F.

AU - Hansen, J. D.

AU - Hansen, J. R.

AU - Hansen, P. H.

AU - Møllerud, R.

AU - Petersen, G.

AU - Simopoulou, E.

PY - 1990/3/1

Y1 - 1990/3/1

N2 - We have looked for evidence of excited lepton production in Z0 decay observed in the ALEPH detector at LEP. We find no ℓℓγγ events and set new limits at 95% CL on ℓ* masses at 44.6, 44.6 and 41.2 GeV/c2 for e*, μ* and τ* respectively. Observed events in the ℓℓγ channels are consistent with radiative effects and we set limits for the first time on the ℓ*ℓZ coupling for ℓ* masses in the range up to 86 GeV/c2. © 1990.

AB - We have looked for evidence of excited lepton production in Z0 decay observed in the ALEPH detector at LEP. We find no ℓℓγγ events and set new limits at 95% CL on ℓ* masses at 44.6, 44.6 and 41.2 GeV/c2 for e*, μ* and τ* respectively. Observed events in the ℓℓγ channels are consistent with radiative effects and we set limits for the first time on the ℓ*ℓZ coupling for ℓ* masses in the range up to 86 GeV/c2. © 1990.

U2 - 10.1016/0370-2693(90)90391-I

DO - 10.1016/0370-2693(90)90391-I

M3 - Article

SN - 0370-2693

VL - 236

SP - 501

EP - 510

JO - Physics Letters B

JF - Physics Letters B

IS - 4

ER -

Search for excited leptons in Z0 decay

Abstract

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Search for excited leptons in Z⁰ decay