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Title: Search for Scalar Top Quark Production in pp Collisions at {radical}(s) =1.8 TeV

Abstract

We have searched for direct production of scalar top quarks at the Collider Detector at Fermilab in 88 pb{sup -1} of pp collisions at {radical}(s)=1.8 TeV . We assume the scalar top quark decays into either a bottom quark and a chargino or a bottom quark, a lepton, and a scalar neutrino. The event signature for both decay scenarios is a lepton, missing transverse energy, and at least two b -quark jets. For a chargino mass of 90 GeV/c{sup 2} and scalar neutrino masses of at least 40 GeV/c{sup 2} , we find no evidence for scalar top production and present upper limits on the production cross section in both decay scenarios. (c) 2000 The American Physical Society.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [9];  [10]
  1. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  2. Waseda University, Tokyo 169, (Japan)
  3. Rockefeller University, New York, New York 10021 (United States)
  4. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
  5. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)
  6. Istituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, (Italy)
  7. University of Michigan, Ann Arbor, Michigan 48109 (United States)
  8. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
  9. Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China (China)
  10. Rockefeller University, New York, New York 10021 (United States) (and others)
Publication Date:
OSTI Identifier:
20216793
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 84; Journal Issue: 23; Other Information: PBD: 5 Jun 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; PROTON-ANTIPROTON INTERACTIONS; T QUARKS; FERMILAB COLLIDER DETECTOR; PARTICLE DECAY; B QUARKS; NEUTRINOS; SPARTICLES; SUPERSYMMETRY; EXPERIMENTAL DATA

Citation Formats

Affolder, T., Akimoto, H., Akopian, A., Albrow, M. G., Amaral, P., Amendolia, S. R., Amidei, D., Anikeev, K., Antos, J., and Apollinari, G. Search for Scalar Top Quark Production in pp Collisions at {radical}(s) =1.8 TeV. United States: N. p., 2000. Web. doi:10.1103/PhysRevLett.84.5273.
Affolder, T., Akimoto, H., Akopian, A., Albrow, M. G., Amaral, P., Amendolia, S. R., Amidei, D., Anikeev, K., Antos, J., & Apollinari, G. Search for Scalar Top Quark Production in pp Collisions at {radical}(s) =1.8 TeV. United States. doi:10.1103/PhysRevLett.84.5273.
Affolder, T., Akimoto, H., Akopian, A., Albrow, M. G., Amaral, P., Amendolia, S. R., Amidei, D., Anikeev, K., Antos, J., and Apollinari, G. Mon . "Search for Scalar Top Quark Production in pp Collisions at {radical}(s) =1.8 TeV". United States. doi:10.1103/PhysRevLett.84.5273.
@article{osti_20216793,
title = {Search for Scalar Top Quark Production in pp Collisions at {radical}(s) =1.8 TeV},
author = {Affolder, T. and Akimoto, H. and Akopian, A. and Albrow, M. G. and Amaral, P. and Amendolia, S. R. and Amidei, D. and Anikeev, K. and Antos, J. and Apollinari, G.},
abstractNote = {We have searched for direct production of scalar top quarks at the Collider Detector at Fermilab in 88 pb{sup -1} of pp collisions at {radical}(s)=1.8 TeV . We assume the scalar top quark decays into either a bottom quark and a chargino or a bottom quark, a lepton, and a scalar neutrino. The event signature for both decay scenarios is a lepton, missing transverse energy, and at least two b -quark jets. For a chargino mass of 90 GeV/c{sup 2} and scalar neutrino masses of at least 40 GeV/c{sup 2} , we find no evidence for scalar top production and present upper limits on the production cross section in both decay scenarios. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevLett.84.5273},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 23,
volume = 84,
place = {United States},
year = {2000},
month = {6}
}