skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: {tau}-tilde{sub 1} lightest supersymmetric particle phenomenology: Two- versus four-body decay modes and resonant single slepton production at the LHC as an example

Abstract

We investigate B{sub 3} minimal supergravity models, where the lightest stau {tau}-tilde{sub 1} is the lightest supersymmetric particle. B{sub 3} models allow for lepton number and R-parity violation; the lightest supersymmetric particle can thus decay. We assume one nonzero B{sub 3} coupling {lambda}{sub ijk}{sup '} at M{sub GUT}, which generates further B{sub 3} couplings at M{sub Z}. We study the renormalization group equations and give numerical examples. The new couplings lead to additional {tau}-tilde{sub 1} decays, providing distinct collider signatures. We classify the {tau}-tilde{sub 1} decays and describe their dependence on the minimal supergravity parameters. We exploit our results for single slepton production at the LHC. As an explicit numerical example, we investigate single-smuon production, focussing on like-sign dimuons in the final state. Also considered are final states with three or four muons.

Authors:
; ;  [1]
  1. Bethe Center for Theoretical Physics and Physikalisches Institut der Universitaet Bonn, Nussallee 12, 53115 Bonn (Germany)
Publication Date:
OSTI Identifier:
21254748
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 79; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.79.016002; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CERN LHC; COUPLING; EQUATIONS; FOUR-BODY PROBLEM; LEPTON NUMBER; LEPTONS; MUONS; PARITY; PARTICLE DECAY; RENORMALIZATION; SPARTICLES; SUPERGRAVITY; TAU PARTICLES

Citation Formats

Dreiner, H K, Grab, S, Trenkel, M K, and Max-Planck-Institut fuer Physik, Foehringer Ring 6, 80805 Muenchen. {tau}-tilde{sub 1} lightest supersymmetric particle phenomenology: Two- versus four-body decay modes and resonant single slepton production at the LHC as an example. United States: N. p., 2009. Web. doi:10.1103/PHYSREVD.79.016002.
Dreiner, H K, Grab, S, Trenkel, M K, & Max-Planck-Institut fuer Physik, Foehringer Ring 6, 80805 Muenchen. {tau}-tilde{sub 1} lightest supersymmetric particle phenomenology: Two- versus four-body decay modes and resonant single slepton production at the LHC as an example. United States. https://doi.org/10.1103/PHYSREVD.79.016002
Dreiner, H K, Grab, S, Trenkel, M K, and Max-Planck-Institut fuer Physik, Foehringer Ring 6, 80805 Muenchen. 2009. "{tau}-tilde{sub 1} lightest supersymmetric particle phenomenology: Two- versus four-body decay modes and resonant single slepton production at the LHC as an example". United States. https://doi.org/10.1103/PHYSREVD.79.016002.
@article{osti_21254748,
title = {{tau}-tilde{sub 1} lightest supersymmetric particle phenomenology: Two- versus four-body decay modes and resonant single slepton production at the LHC as an example},
author = {Dreiner, H K and Grab, S and Trenkel, M K and Max-Planck-Institut fuer Physik, Foehringer Ring 6, 80805 Muenchen},
abstractNote = {We investigate B{sub 3} minimal supergravity models, where the lightest stau {tau}-tilde{sub 1} is the lightest supersymmetric particle. B{sub 3} models allow for lepton number and R-parity violation; the lightest supersymmetric particle can thus decay. We assume one nonzero B{sub 3} coupling {lambda}{sub ijk}{sup '} at M{sub GUT}, which generates further B{sub 3} couplings at M{sub Z}. We study the renormalization group equations and give numerical examples. The new couplings lead to additional {tau}-tilde{sub 1} decays, providing distinct collider signatures. We classify the {tau}-tilde{sub 1} decays and describe their dependence on the minimal supergravity parameters. We exploit our results for single slepton production at the LHC. As an explicit numerical example, we investigate single-smuon production, focussing on like-sign dimuons in the final state. Also considered are final states with three or four muons.},
doi = {10.1103/PHYSREVD.79.016002},
url = {https://www.osti.gov/biblio/21254748}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 1,
volume = 79,
place = {United States},
year = {2009},
month = {1}
}