Searches for new particles in Z decays using the ALEPH detector

The ALEPH Collaboration

doi:10.1016/0370-1573(92)90177-2

Searches for new particles in Z decays using the ALEPH detector

The ALEPH Collaboration

Research output: Contribution to journal › Review article › peer-review

335 Scopus citations

Abstract

During 1989 and 1990 over 200 000 hadronic and leptonic events, corresponding to about 8.5 pb^-1 of data, were collected in a scan of the Z peak using the ALEPH detector at the e⁺e^- collider, LEP. These data, at the highest centre-of-mass energy available to date in e⁺e^- collisions, have allowed a broad range of searches for new particles and new phenomena to be performed in a mass range significantly higher than previously attainable. The searches performed by ALEPH for Higgs bosons, supersymmetric particles and leptoquarks, and for evidence of compositeness are reviewed. No positive signals have been observed but a comprehensive set of mass and coupling limits is presented. Branching ratio limits are given for a number of "rare" Z decays.

Original language	English (US)
Pages (from-to)	253-340
Number of pages	88
Journal	Physics Reports
Volume	216
Issue number	5-6
DOIs	https://doi.org/10.1016/0370-1573(92)90177-2
State	Published - Aug 1992

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1016/0370-1573(92)90177-2

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@article{8485c01aeac64f4f85e437fdde5c6e00,

title = "Searches for new particles in Z decays using the ALEPH detector",

abstract = "During 1989 and 1990 over 200 000 hadronic and leptonic events, corresponding to about 8.5 pb-1 of data, were collected in a scan of the Z peak using the ALEPH detector at the e+e- collider, LEP. These data, at the highest centre-of-mass energy available to date in e+e- collisions, have allowed a broad range of searches for new particles and new phenomena to be performed in a mass range significantly higher than previously attainable. The searches performed by ALEPH for Higgs bosons, supersymmetric particles and leptoquarks, and for evidence of compositeness are reviewed. No positive signals have been observed but a comprehensive set of mass and coupling limits is presented. Branching ratio limits are given for a number of {"}rare{"} Z decays.",

author = "{The ALEPH Collaboration} and D. Decamp and B. Deschizeaux and C. Goy and Lees, {J. P.} and Minard, {M. N.} and R. Alemany and Crespo, {J. M.} and M. Delfino and E. Fernandez and V. Gaitan and Ll Garrido and Mil, {Ll M.} and A. Pacheco and Catanesi, {M. G.} and D. Creanza and {De Palma}, M. and A. Farilla and G. Iaselli and G. Maggi and M. Maggi and S. Natali and S. Nuzzo and M. Quattromini and A. Ranieii and G. Raso and F. Romano and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and G. Zito and Y. Gao and H. Hu and D. Huang and X. Huang and J. Lin and J. Lou and C. Qiao and T. Ruan and T. Wang and Y. Xie and D. Xu and R. Xu and J. Zhang and W. Zhao and Atwood, {W. B.} and Bauerdick, {L. A.T.} and F. Bird and E. Blucher and Cowen, {D. F.}",

note = "Publisher Copyright: {\textcopyright} 1992.",

year = "1992",

month = aug,

doi = "10.1016/0370-1573(92)90177-2",

language = "English (US)",

volume = "216",

pages = "253--340",

journal = "Physics Reports",

issn = "0370-1573",

publisher = "Elsevier B.V.",

number = "5-6",

}

TY - JOUR

T1 - Searches for new particles in Z decays using the ALEPH detector

AU - The ALEPH Collaboration

AU - Decamp, D.

AU - Deschizeaux, B.

AU - Goy, C.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Alemany, R.

AU - Crespo, J. M.

AU - Delfino, M.

AU - Fernandez, E.

AU - Gaitan, V.

AU - Garrido, Ll

AU - Mil, Ll M.

AU - Pacheco, A.

AU - Catanesi, M. G.

AU - Creanza, D.

AU - De Palma, M.

AU - Farilla, A.

AU - Iaselli, G.

AU - Maggi, G.

AU - Maggi, M.

AU - Natali, S.

AU - Nuzzo, S.

AU - Quattromini, M.

AU - Ranieii, A.

AU - Raso, G.

AU - Romano, F.

AU - Ruggieri, F.

AU - Selvaggi, G.

AU - Silvestris, L.

AU - Tempesta, P.

AU - Zito, G.

AU - Gao, Y.

AU - Hu, H.

AU - Huang, D.

AU - Huang, X.

AU - Lin, J.

AU - Lou, J.

AU - Qiao, C.

AU - Ruan, T.

AU - Wang, T.

AU - Xie, Y.

AU - Xu, D.

AU - Xu, R.

AU - Zhang, J.

AU - Zhao, W.

AU - Atwood, W. B.

AU - Bauerdick, L. A.T.

AU - Bird, F.

AU - Blucher, E.

AU - Cowen, D. F.

PY - 1992/8

Y1 - 1992/8

N2 - During 1989 and 1990 over 200 000 hadronic and leptonic events, corresponding to about 8.5 pb-1 of data, were collected in a scan of the Z peak using the ALEPH detector at the e+e- collider, LEP. These data, at the highest centre-of-mass energy available to date in e+e- collisions, have allowed a broad range of searches for new particles and new phenomena to be performed in a mass range significantly higher than previously attainable. The searches performed by ALEPH for Higgs bosons, supersymmetric particles and leptoquarks, and for evidence of compositeness are reviewed. No positive signals have been observed but a comprehensive set of mass and coupling limits is presented. Branching ratio limits are given for a number of "rare" Z decays.

AB - During 1989 and 1990 over 200 000 hadronic and leptonic events, corresponding to about 8.5 pb-1 of data, were collected in a scan of the Z peak using the ALEPH detector at the e+e- collider, LEP. These data, at the highest centre-of-mass energy available to date in e+e- collisions, have allowed a broad range of searches for new particles and new phenomena to be performed in a mass range significantly higher than previously attainable. The searches performed by ALEPH for Higgs bosons, supersymmetric particles and leptoquarks, and for evidence of compositeness are reviewed. No positive signals have been observed but a comprehensive set of mass and coupling limits is presented. Branching ratio limits are given for a number of "rare" Z decays.

UR - http://www.scopus.com/inward/record.url?scp=1542736416&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1542736416&partnerID=8YFLogxK

U2 - 10.1016/0370-1573(92)90177-2

DO - 10.1016/0370-1573(92)90177-2

M3 - Review article

AN - SCOPUS:1542736416

SN - 0370-1573

VL - 216

SP - 253

EP - 340

JO - Physics Reports

JF - Physics Reports

IS - 5-6

ER -

Searches for new particles in Z decays using the ALEPH detector

Abstract

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