Abazov, VM;
Abbott, B;
Abdesselam, A;
Abolins, M;
Abramov, V;
Acharya, BS;
Adams, DL;
... D0 Collaboration, .; + view all
(2004)
Search for pair production of light scalar top quarks in p(p)over-bar collisions at root s=1.8 TeV.
PHYS REV LETT
, 93
(1)
, Article 011801. 10.1103/PhysRevLett.93.011801.
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Abstract
Using 85.2+/-3.6 pb(-1) of p (p) over bar collisions collected at roots=1.8 TeV with the D0 detector at Fermilab's Tevatron Collider, we present the results of a search for direct pair production of scalar top quarks ((t) over bar), the supersymmetric partners of the top quark. We examined events containing two or more jets and missing transverse energy, the signature of light scalar top quark decays to charm quarks and neutralinos. After selections, we observe 27 events while expecting 31.1+/-6.4 events from known standard model processes. Comparing these results to next-to-leading-order production cross sections, we exclude a significant region of (t) over tilde and neutralino phase space. In particular, we exclude the (t) over tilde mass m((t) over tilde)<122 GeV/c(2) for a neutralino mass of 45 GeV/c(2).
Type: | Article |
---|---|
Title: | Search for pair production of light scalar top quarks in p(p)over-bar collisions at root s=1.8 TeV |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevLett.93.011801 |
Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.93.011801 |
Language: | English |
Additional information: | © 2004 The American Physical Society |
Keywords: | FERMILAB TEVATRON, SUPERSYMMETRY, COLLIDER, DETECTOR, SQUARKS, PHYSICS |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Cell and Developmental Biology |
URI: | https://discovery.ucl.ac.uk/id/eprint/1374232 |
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