Search for first generation scalar leptoquark pairs in pp collisions at √ s = 1.8 TeV

D0 Collaboration

doi:10.1103/PhysRevLett.80.2051

Search for first generation scalar leptoquark pairs in pp collisions at √ s = 1.8 TeV

D0 Collaboration

Department of Physics

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

61 Citations (Scopus)

Abstract

We have searched for first generation scalar leptoquark (LQ) pairs in the ev + jets channel using pp collider data (∫L dt ≈ 115pb^-1) collected by the D0 experiment at the Fermilab Tevatron during 1992-1996. The analysis yields no candidate events. We combine the results with those from the ee + jets vv + jets channels to obtain 95% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and of β, the branching fraction to a charged lepton. Comparing with the next-to-leading order theory, we set 95% C.L. lower limits on the LQ mass of 225, 204, and 79 GeV/c² for β = 1, 1/2, and 0, respectively.

Original language	English
Pages (from-to)	2051-2056
Number of pages	6
Journal	Physical review letters
Volume	80
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.80.2051
Publication status	Published - 1998

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.80.2051

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@article{7b4e0f0587dd4dc9a1e6daaac8d63f2d,

title = "Search for first generation scalar leptoquark pairs in pp collisions at √ s = 1.8 TeV",

abstract = "We have searched for first generation scalar leptoquark (LQ) pairs in the ev + jets channel using pp collider data (∫L dt ≈ 115pb-1) collected by the D0 experiment at the Fermilab Tevatron during 1992-1996. The analysis yields no candidate events. We combine the results with those from the ee + jets vv + jets channels to obtain 95\% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and of β, the branching fraction to a charged lepton. Comparing with the next-to-leading order theory, we set 95\% C.L. lower limits on the LQ mass of 225, 204, and 79 GeV/c2 for β = 1, 1/2, and 0, respectively.",

author = "\{D0 Collaboration\} and B. Abbott and M. Abolins and Acharya, \{B. S.\} and I. Adam and Adams, \{D. L.\} and M. Adams and S. Ahn and H. Aihara and Alves, \{G. A.\} and N. Amos and Anderson, \{E. W.\} and R. Astur and Baarmand, \{M. M.\} and A. Baden and V. Balamurali and J. Balderston and B. Baldin and S. Banerjee and J. Bantly and E. Barberis and Bartlett, \{J. F.\} and K. Bazizi and A. Belyaev and Beri, \{S. B.\} and I. Bertram and Bezzubov, \{V. A.\} and Bhat, \{P. C.\} and V. Bhatnagar and M. Bhattacharjee and N. Biswas and G. Blazey and S. Blessing and P. Bloom and A. Boehnlein and Bojko, \{N. I.\} and F. Borcherding and C. Boswell and A. Brandt and R. Brock 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 S. Choi and E. Won",

year = "1998",

doi = "10.1103/PhysRevLett.80.2051",

language = "English",

volume = "80",

pages = "2051--2056",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

}

TY - JOUR

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

AU - D0 Collaboration

AU - Abbott, B.

AU - Abolins, M.

AU - Acharya, B. S.

AU - Adam, I.

AU - Adams, D. L.

AU - Adams, M.

AU - Ahn, S.

AU - Aihara, H.

AU - Alves, G. A.

AU - Amos, N.

AU - Anderson, E. W.

AU - Astur, R.

AU - Baarmand, M. M.

AU - Baden, A.

AU - Balamurali, V.

AU - Balderston, J.

AU - Baldin, B.

AU - Banerjee, S.

AU - Bantly, J.

AU - Barberis, E.

AU - Bartlett, J. F.

AU - Bazizi, K.

AU - Belyaev, A.

AU - Beri, S. B.

AU - Bertram, I.

AU - Bezzubov, V. A.

AU - Bhat, P. C.

AU - Bhatnagar, V.

AU - Bhattacharjee, M.

AU - Biswas, N.

AU - Blazey, G.

AU - Blessing, S.

AU - Bloom, P.

AU - Boehnlein, A.

AU - Bojko, N. I.

AU - Borcherding, F.

AU - Boswell, C.

AU - Brandt, A.

AU - Brock, R.

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 - Choi, S.

AU - Won, E.

PY - 1998

Y1 - 1998

N2 - We have searched for first generation scalar leptoquark (LQ) pairs in the ev + jets channel using pp collider data (∫L dt ≈ 115pb-1) collected by the D0 experiment at the Fermilab Tevatron during 1992-1996. The analysis yields no candidate events. We combine the results with those from the ee + jets vv + jets channels to obtain 95% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and of β, the branching fraction to a charged lepton. Comparing with the next-to-leading order theory, we set 95% C.L. lower limits on the LQ mass of 225, 204, and 79 GeV/c2 for β = 1, 1/2, and 0, respectively.

AB - We have searched for first generation scalar leptoquark (LQ) pairs in the ev + jets channel using pp collider data (∫L dt ≈ 115pb-1) collected by the D0 experiment at the Fermilab Tevatron during 1992-1996. The analysis yields no candidate events. We combine the results with those from the ee + jets vv + jets channels to obtain 95% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and of β, the branching fraction to a charged lepton. Comparing with the next-to-leading order theory, we set 95% C.L. lower limits on the LQ mass of 225, 204, and 79 GeV/c2 for β = 1, 1/2, and 0, respectively.

UR - https://www.scopus.com/pages/publications/4243530921

U2 - 10.1103/PhysRevLett.80.2051

DO - 10.1103/PhysRevLett.80.2051

M3 - Article

AN - SCOPUS:4243530921

SN - 0031-9007

VL - 80

SP - 2051

EP - 2056

JO - Physical review letters

JF - Physical review letters

IS - 10

ER -

Search for first generation scalar leptoquark pairs in pp collisions at √ s = 1.8 TeV

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