Searches for scalar quarks in e+e- interactions at √s = 189 GeV

L3 Collaboration

doi:10.1016/S0370-2693(99)01363-5

Searches for scalar quarks in e⁺e^- interactions at √s = 189 GeV

L3 Collaboration

Physics

National Institute for Nuclear Physics
University of Geneva
University of Florence
CIEMAT
University of Lausanne
CERN
Swiss Federal Institute of Technology Zurich
Louisiana State University
Nuclear Physics Institute
University of Bucharest
University of Bologna
Alikhanov Institute for Theoretical and Experimental Physics
University of Michigan, Ann Arbor
Tata Institute of Fundamental Research
University of Rome La Sapienza
University of Alabama
IN2P3-CNRS
Paul Scherrer Institute
University of Perugia
Massachusetts Institute of Technology
Carnegie Mellon University
University of Amsterdam
RWTH Aachen University
Hungarian Academy of Sciences

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30 Scopus citations

Abstract

Searches for scalar top and scalar bottom quarks, as well as for mass-degenerate scalar quarks of the first two families are performed at 189 GeV centre-of-mass energy with the L3 detector at LEP. No signals are observed. Model-independent limits on the scalar top production cross sections are determined for the decay modes t₁ → cx₁/⁰ and t₁ → blv. For scalar quarks of the other flavours q → qx₁/⁰ decays are considered. Within the framework of the Minimal Supersymmetric Standard Model mass limits are set at 95% C.L. for these particles. Indirect limits on the gluino mass are also derived.

Original language	English
Pages (from-to)	308-320
Number of pages	13
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	471
Issue number	2-3
DOIs	https://doi.org/10.1016/S0370-2693(99)01363-5
State	Published - Dec 30 1999

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10.1016/S0370-2693(99)01363-5

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@article{2c76b6b1b96d45f9af1f5c35f54198c2,

title = "Searches for scalar quarks in e+e- interactions at √s = 189 GeV",

abstract = "Searches for scalar top and scalar bottom quarks, as well as for mass-degenerate scalar quarks of the first two families are performed at 189 GeV centre-of-mass energy with the L3 detector at LEP. No signals are observed. Model-independent limits on the scalar top production cross sections are determined for the decay modes t1 → cx1/0 and t1 → blv. For scalar quarks of the other flavours q → qx1/0 decays are considered. Within the framework of the Minimal Supersymmetric Standard Model mass limits are set at 95\% C.L. for these particles. Indirect limits on the gluino mass are also derived.",

author = "\{L3 Collaboration\} and M. Acciarri and P. Achard and O. Adriani and M. Aguilar-Benitez and J. Alcaraz and G. Alemanni and J. Allaby and A. Aloisio and Alviggi, \{M. G.\} and G. Ambrosi and H. Anderhub and Andreev, \{V. P.\} and T. Angelescu and F. Anselmo and A. Arefiev and T. Azemoon and T. Aziz and P. Bagnaia and L. Baksay and A. Balandras and Ball, \{R. C.\} and S. Banerjee and Sw Banerjee and A. Barczyk and R. Barillere and L. Barone and P. Bartalini and M. Basile and R. Battiston and A. Bay and F. Becattini and U. Becker and F. Behner and L. Bellucci and J. Berdugo and P. Berges and B. Bertucci and Betev, \{B. L.\} and S. Bhattacharya and M. Biasini and A. Biland and Blaising, \{J. J.\} and Blyth, \{S. C.\} and Bobbink, \{G. J.\} and A. B{\"o}hm and L. Boldizsar and B. Borgia and D. Bourilkov and M. Bourquin and I. Iashvili",

year = "1999",

month = dec,

day = "30",

doi = "10.1016/S0370-2693(99)01363-5",

language = "English",

volume = "471",

pages = "308--320",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "2-3",

}

TY - JOUR

T1 - Searches for scalar quarks in e+e- interactions at √s = 189 GeV

AU - L3 Collaboration

AU - Acciarri, M.

AU - Achard, P.

AU - Adriani, O.

AU - Aguilar-Benitez, M.

AU - Alcaraz, J.

AU - Alemanni, G.

AU - Allaby, J.

AU - Aloisio, A.

AU - Alviggi, M. G.

AU - Ambrosi, G.

AU - Anderhub, H.

AU - Andreev, V. P.

AU - Angelescu, T.

AU - Anselmo, F.

AU - Arefiev, A.

AU - Azemoon, T.

AU - Aziz, T.

AU - Bagnaia, P.

AU - Baksay, L.

AU - Balandras, A.

AU - Ball, R. C.

AU - Banerjee, S.

AU - Banerjee, Sw

AU - Barczyk, A.

AU - Barillere, R.

AU - Barone, L.

AU - Bartalini, P.

AU - Basile, M.

AU - Battiston, R.

AU - Bay, A.

AU - Becattini, F.

AU - Becker, U.

AU - Behner, F.

AU - Bellucci, L.

AU - Berdugo, J.

AU - Berges, P.

AU - Bertucci, B.

AU - Betev, B. L.

AU - Bhattacharya, S.

AU - Biasini, M.

AU - Biland, A.

AU - Blaising, J. J.

AU - Blyth, S. C.

AU - Bobbink, G. J.

AU - Böhm, A.

AU - Boldizsar, L.

AU - Borgia, B.

AU - Bourilkov, D.

AU - Bourquin, M.

AU - Iashvili, I.

PY - 1999/12/30

Y1 - 1999/12/30

N2 - Searches for scalar top and scalar bottom quarks, as well as for mass-degenerate scalar quarks of the first two families are performed at 189 GeV centre-of-mass energy with the L3 detector at LEP. No signals are observed. Model-independent limits on the scalar top production cross sections are determined for the decay modes t1 → cx1/0 and t1 → blv. For scalar quarks of the other flavours q → qx1/0 decays are considered. Within the framework of the Minimal Supersymmetric Standard Model mass limits are set at 95% C.L. for these particles. Indirect limits on the gluino mass are also derived.

AB - Searches for scalar top and scalar bottom quarks, as well as for mass-degenerate scalar quarks of the first two families are performed at 189 GeV centre-of-mass energy with the L3 detector at LEP. No signals are observed. Model-independent limits on the scalar top production cross sections are determined for the decay modes t1 → cx1/0 and t1 → blv. For scalar quarks of the other flavours q → qx1/0 decays are considered. Within the framework of the Minimal Supersymmetric Standard Model mass limits are set at 95% C.L. for these particles. Indirect limits on the gluino mass are also derived.

UR - https://www.scopus.com/pages/publications/0033619873

U2 - 10.1016/S0370-2693(99)01363-5

DO - 10.1016/S0370-2693(99)01363-5

M3 - Article

AN - SCOPUS:0033619873

SN - 0370-2693

VL - 471

SP - 308

EP - 320

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 2-3

ER -

Searches for scalar quarks in e⁺e^- interactions at √s = 189 GeV

Abstract

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