Search for second-generation leptoquark pairs in  ̄pp collisions at √s=1.8TeV

D0 Collaboration

doi:10.1103/PhysRevLett.84.2088

Search for second-generation leptoquark pairs in ̄pp collisions at √s=1.8TeV

D0 Collaboration

New York University
Michigan State University
Kurchatov Institute
Tata Institute of Fundamental Research, Mumbai
University of Texas at Arlington
University of Illinois at Chicago
Fermi National Accelerator Laboratory
Institute for Theoretical and Experimental Physics
Centro Brasileiro de Pesquisas Fisicas
University of Michigan, Ann Arbor
Iowa State University
Stony Brook University
University of Maryland, College Park
Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
Ernest Orlando Lawrence Berkeley National Laboratory
University of Kansas
Universités Paris VI and VII
Moscow State University
Panjab University
Lancaster University
Northern Illinois University
Florida State University
University of California, Davis
Northwestern University
Boston University
Rua São Francisco de Xavier
CINVESTAV-IPN

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

We have searched for second-generation leptoquark (LQ) pairs in the μμ+jets channel using 94 ±5pb⁻¹ of ¯pp collider data collected by the D0 experiment at the Fermilab Tevatron during 1993–1996. No evidence for a signal is observed. These results are combined with those from the μν+jets and νν+jets channels to obtain 95% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and β, the branching fraction of a LQ decay into a charged lepton and a quark. Lower limits of 200(180)GeV/c² for β=1(1/2) are set at the 95% C.L. on the mass of scalar LQ. Mass limits are also set on vector leptoquarks as a function of β.

Original language	English
Pages (from-to)	2088-2093
Number of pages	6
Journal	Physical Review Letters
Volume	84
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.84.2088
Publication status	Published - 1 Jan 2000
Externally published	Yes

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10.1103/PhysRevLett.84.2088

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@article{a9b3809324344def83e5a03dc77cbdcc,

title = "Search for second-generation leptoquark pairs in{\= }pp collisions at √s=1.8TeV",

abstract = "We have searched for second-generation leptoquark (LQ) pairs in the μμ+jets channel using 94 ±5pb−1 of ¯pp collider data collected by the D0 experiment at the Fermilab Tevatron during 1993{\textendash}1996. No evidence for a signal is observed. These results are combined with those from the μν+jets and νν+jets channels to obtain 95\% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and β, the branching fraction of a LQ decay into a charged lepton and a quark. Lower limits of 200(180)GeV/c2 for β=1(1/2) are set at the 95\% C.L. on the mass of scalar LQ. Mass limits are also set on vector leptoquarks as a function of β.",

author = "\{D0 Collaboration\} and B. Abbott and M. Abolins and V. Abramov and Acharya, \{B. S.\} and Adams, \{D. L.\} and M. Adams and S. Ahn and V. Akimov and Alves, \{G. A.\} and N. Amos and Anderson, \{E. W.\} and Baarmand, \{M. M.\} and Babintsev, \{V. V.\} and L. Babukhadia and A. Baden and B. Baldin and S. Banerjee and J. Bantly and E. Barberis and P. Baringer and Bartlett, \{J. F.\} and U. Bassler and A. Belyaev and Beri, \{S. B.\} and G. Bernardi and I. Bertram and Bezzubov, \{V. A.\} and Bhat, \{P. C.\} and V. Bhatnagar and M. Bhattacharjee and G. Blazey and S. Blessing and A. Boehnlein and Bojko, \{N. I.\} and F. Borcherding and A. Brandt and R. Breedon and G. Briskin and R. Brock and G. Brooijmans and A. Bross and D. Buchholz and Burtovoi, \{V. S.\} and Butler, \{J. M.\} and W. Carvalho and D. Casey and Z. Casilum and H. Castilla-Valdez and D. Chakraborty and F. Fleuret",

year = "2000",

month = jan,

day = "1",

doi = "10.1103/PhysRevLett.84.2088",

language = "English",

volume = "84",

pages = "2088--2093",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

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T1 - Search for second-generation leptoquark pairs in ̄pp collisions at √s=1.8TeV

AU - D0 Collaboration

AU - Abbott, B.

AU - Abolins, M.

AU - Abramov, V.

AU - Acharya, B. S.

AU - Adams, D. L.

AU - Adams, M.

AU - Ahn, S.

AU - Akimov, V.

AU - Alves, G. A.

AU - Amos, N.

AU - Anderson, E. W.

AU - Baarmand, M. M.

AU - Babintsev, V. V.

AU - Babukhadia, L.

AU - Baden, A.

AU - Baldin, B.

AU - Banerjee, S.

AU - Bantly, J.

AU - Barberis, E.

AU - Baringer, P.

AU - Bartlett, J. F.

AU - Bassler, U.

AU - Belyaev, A.

AU - Beri, S. B.

AU - Bernardi, G.

AU - Bertram, I.

AU - Bezzubov, V. A.

AU - Bhat, P. C.

AU - Bhatnagar, V.

AU - Bhattacharjee, M.

AU - Blazey, G.

AU - Blessing, S.

AU - Boehnlein, A.

AU - Bojko, N. I.

AU - Borcherding, F.

AU - Brandt, A.

AU - Breedon, R.

AU - Briskin, G.

AU - Brock, R.

AU - Brooijmans, G.

AU - Bross, A.

AU - Buchholz, D.

AU - Burtovoi, V. S.

AU - Butler, J. M.

AU - Carvalho, W.

AU - Casey, D.

AU - Casilum, Z.

AU - Castilla-Valdez, H.

AU - Chakraborty, D.

AU - Fleuret, F.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - We have searched for second-generation leptoquark (LQ) pairs in the μμ+jets channel using 94 ±5pb−1 of ¯pp collider data collected by the D0 experiment at the Fermilab Tevatron during 1993–1996. No evidence for a signal is observed. These results are combined with those from the μν+jets and νν+jets channels to obtain 95% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and β, the branching fraction of a LQ decay into a charged lepton and a quark. Lower limits of 200(180)GeV/c2 for β=1(1/2) are set at the 95% C.L. on the mass of scalar LQ. Mass limits are also set on vector leptoquarks as a function of β.

AB - We have searched for second-generation leptoquark (LQ) pairs in the μμ+jets channel using 94 ±5pb−1 of ¯pp collider data collected by the D0 experiment at the Fermilab Tevatron during 1993–1996. No evidence for a signal is observed. These results are combined with those from the μν+jets and νν+jets channels to obtain 95% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and β, the branching fraction of a LQ decay into a charged lepton and a quark. Lower limits of 200(180)GeV/c2 for β=1(1/2) are set at the 95% C.L. on the mass of scalar LQ. Mass limits are also set on vector leptoquarks as a function of β.

U2 - 10.1103/PhysRevLett.84.2088

DO - 10.1103/PhysRevLett.84.2088

M3 - Article

AN - SCOPUS:85030591889

SN - 0031-9007

VL - 84

SP - 2088

EP - 2093

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

ER -

Search for second-generation leptoquark pairs in ̄pp collisions at √s=1.8TeV

Abstract

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