Search for supersymmetry in pp collisions at s=1.96TeV using the trilepton signature for chargino-neutralino production

Authors

T. Aaltonen, Helsingin Yliopisto
J. Adelman, The Enrico Fermi Institute
T. Akimoto, University of Tsukuba
M. G. Albrow, Fermi National Accelerator Laboratory
B. Álvarez GonzÁlez, Universidad de Cantabria
S. Amerio, Istituto Nazionale Di Fisica Nucleare, Sezione di Padova
D. Amidei, University of Michigan, Ann Arbor
A. Anastassov, Northwestern University
A. Annovi, INFN, Laboratori Nazionali Di Frascati
J. Antos, Univerzita Komenského v Bratislave
G. Apollinari, Fermi National Accelerator Laboratory
A. Apresyan, Purdue University
T. Arisawa, Waseda University
A. Artikov, Joint Institute for Nuclear Research, Dubna
W. Ashmanskas, Fermi National Accelerator Laboratory
A. Attal, Universitat Autònoma de Barcelona
A. Aurisano, Texas A&M University
F. Azfar, University of Oxford
P. Azzurri, University of Pennsylvania
W. Badgett, Fermi National Accelerator Laboratory
A. Barbaro-Galtieri, Lawrence Berkeley National Laboratory
V. E. Barnes, Purdue University
B. A. Barnett, Johns Hopkins University
V. Bartsch, University College London
G. Bauer, Massachusetts Institute of Technology
P. H. Beauchemin, Université McGill
F. Bedeschi, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
P. Bednar, Univerzita Komenského v Bratislave

Document Type

Article

Publication Date

12-15-2008

Abstract

We use the three lepton and missing energy trilepton signature to search for chargino-neutralino production with 2.0fb-1 of integrated luminosity collected by the CDF II experiment at the Tevatron pp collider. We expect an excess of approximately 11 supersymmetric events for a choice of parameters of the mSUGRA model, but our observation of 7 events is consistent with the standard model expectation of 6.4 events. We constrain the mSUGRA model of supersymmetry and rule out chargino masses up to 145GeV/c2 for a specific choice of parameters. © 2008 The American Physical Society.

Publication Source (Journal or Book title)

Physical Review Letters

Recommended Citation

Aaltonen, T., Adelman, J., Akimoto, T., Albrow, M., Álvarez GonzÁlez, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Apresyan, A., Arisawa, T., Artikov, A., Ashmanskas, W., Attal, A., Aurisano, A., Azfar, F., Azzurri, P., Badgett, W., Barbaro-Galtieri, A., Barnes, V., Barnett, B., Bartsch, V., Bauer, G., Beauchemin, P., Bedeschi, F., & Bednar, P. (2008). Search for supersymmetry in pp collisions at s=1.96TeV using the trilepton signature for chargino-neutralino production. Physical Review Letters, 101 (25) https://doi.org/10.1103/PhysRevLett.101.251801