Search for light top squarks in p¯p collisions at √s = 1.8 TeV

D0 Collaboration

doi:10.1103/PhysRevLett.76.2222

Search for light top squarks in p¯p collisions at √s = 1.8 TeV

D0 Collaboration

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

98 Scopus citations

Abstract

We present a search for pair produced top squarks, the supersymmetric partners of the top quark, using the D0 detector at the Fermilab Tevatron p¯p collider. We consider a scenario in which the lighter of the two top squarks ˜t₁ decays with 100% branching fraction to a charm quark and the lightest neutralino ˜χ⁰ ₁ yielding a signal of two acollinear jets with missing transverse energy. We observe 3 events while we expect 3.5 α 1.2 events from the known standard model processes. We exclude at the 95% confidence level a significant region of the m_t₁- m_{χ₁ ⁰} parameter space. The highest m_t₁ value we exclude is 93GeV/c² with a corresponding m_{χ₁ ⁰} value of 8GeV/c².

Original language	English
Pages (from-to)	2222-2227
Number of pages	6
Journal	Physical Review Letters
Volume	76
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.76.2222
State	Published - 1996
Externally published	Yes

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10.1103/PhysRevLett.76.2222

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@article{45b2ff3d9ef2431f98902aa8d0f37aee,

title = "Search for light top squarks in p¯p collisions at √s = 1.8 TeV",

abstract = "We present a search for pair produced top squarks, the supersymmetric partners of the top quark, using the D0 detector at the Fermilab Tevatron p¯p collider. We consider a scenario in which the lighter of the two top squarks ˜t1 decays with 100\% branching fraction to a charm quark and the lightest neutralino ˜χ0 1 yielding a signal of two acollinear jets with missing transverse energy. We observe 3 events while we expect 3.5 α 1.2 events from the known standard model processes. We exclude at the 95\% confidence level a significant region of the mt1 - mχ1 0 parameter space. The highest mt1 value we exclude is 93GeV/c2 with a corresponding mχ1 0 value of 8GeV/c2.",

author = "\{D0 Collaboration\} and S. Abachi 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 J. Alitti and G. {\'A}lvarez and Alves, \{G. A.\} and E. Amidi and N. Amos and Anderson, \{E. W.\} and Aronson, \{S. H.\} and R. Astur and Avery, \{R. E.\} and A. Baden and V. Balamurali and J. Balderston and B. Baldin and J. Bantly and Bartlett, \{J. F.\} and K. Bazizi and J. Bendich and Beri, \{S. B.\} and I. Bertram and Bezzubov, \{V. A.\} and Bhat, \{P. C.\} and V. Bhatnagar and M. Bhattacharjee and A. Bischoff and N. Biswas and G. Blazey and S. Blessing and P. Bloom and A. Boehnlein and Bojko, \{N. I.\} and F. Borcherding and J. Borders 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 M. Demarteau",

year = "1996",

doi = "10.1103/PhysRevLett.76.2222",

language = "English",

volume = "76",

pages = "2222--2227",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

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TY - JOUR

T1 - Search for light top squarks in p¯p collisions at √s = 1.8 TeV

AU - D0 Collaboration

AU - Abachi, S.

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 - Alitti, J.

AU - Álvarez, G.

AU - Alves, G. A.

AU - Amidi, E.

AU - Amos, N.

AU - Anderson, E. W.

AU - Aronson, S. H.

AU - Astur, R.

AU - Avery, R. E.

AU - Baden, A.

AU - Balamurali, V.

AU - Balderston, J.

AU - Baldin, B.

AU - Bantly, J.

AU - Bartlett, J. F.

AU - Bazizi, K.

AU - Bendich, J.

AU - Beri, S. B.

AU - Bertram, I.

AU - Bezzubov, V. A.

AU - Bhat, P. C.

AU - Bhatnagar, V.

AU - Bhattacharjee, M.

AU - Bischoff, A.

AU - Biswas, N.

AU - Blazey, G.

AU - Blessing, S.

AU - Bloom, P.

AU - Boehnlein, A.

AU - Bojko, N. I.

AU - Borcherding, F.

AU - Borders, J.

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 - Demarteau, M.

PY - 1996

Y1 - 1996

N2 - We present a search for pair produced top squarks, the supersymmetric partners of the top quark, using the D0 detector at the Fermilab Tevatron p¯p collider. We consider a scenario in which the lighter of the two top squarks ˜t1 decays with 100% branching fraction to a charm quark and the lightest neutralino ˜χ0 1 yielding a signal of two acollinear jets with missing transverse energy. We observe 3 events while we expect 3.5 α 1.2 events from the known standard model processes. We exclude at the 95% confidence level a significant region of the mt1 - mχ1 0 parameter space. The highest mt1 value we exclude is 93GeV/c2 with a corresponding mχ1 0 value of 8GeV/c2.

AB - We present a search for pair produced top squarks, the supersymmetric partners of the top quark, using the D0 detector at the Fermilab Tevatron p¯p collider. We consider a scenario in which the lighter of the two top squarks ˜t1 decays with 100% branching fraction to a charm quark and the lightest neutralino ˜χ0 1 yielding a signal of two acollinear jets with missing transverse energy. We observe 3 events while we expect 3.5 α 1.2 events from the known standard model processes. We exclude at the 95% confidence level a significant region of the mt1 - mχ1 0 parameter space. The highest mt1 value we exclude is 93GeV/c2 with a corresponding mχ1 0 value of 8GeV/c2.

UR - https://www.scopus.com/pages/publications/4243902598

U2 - 10.1103/PhysRevLett.76.2222

DO - 10.1103/PhysRevLett.76.2222

M3 - Article

AN - SCOPUS:4243902598

SN - 0031-9007

VL - 76

SP - 2222

EP - 2227

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

ER -

Search for light top squarks in p¯p collisions at √s = 1.8 TeV

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