Three-Body Decays of Sleptons with General Flavor Violation and Left-Right Mixing

Abstract

We determine the widths of three-body decays of sleptons, ${\tilde{l}}^{-}\to {\tilde{l}}^{\pm }{l}^{-}{l}^{\mp },{\tilde{l}}^{-}\nu \bar{\nu },{\tilde{l}}^{-}q\bar{q}$, in the presence of arbitrary slepton flavor violation and left-right mixing. These decays are important in scenarios in which the lightest supersymmetric particle is the gravitino, a generic possibility in models with gauge- and gravity-mediated supersymmetry breaking. Three-body decays have been discussed previously assuming flavor conservation and left-right mixing in only the stau sector. Flavor violation and general left-right mixing open up many new decay channels, which provide new avenues for precision mass measurements and may play an essential role in solving the standard model flavor problem. We present results for toy models with two-generation mixing, and discuss the implementation of these results in SPICE, a program that simplifies collider event simulations of flavor-violating supersymmetric models.

25 pages, 5 figures; v2: published version

References in corpus (9)

• Flavor in Supersymmetry with an Extended R-symmetry
• The Standard Model and Supersymmetric Flavor Puzzles at the Large Hadron Collider
• Measuring Lepton Flavour Violation at LHC with Long-Lived Slepton in the Coannihilation Region
• Flavorful Supersymmetry
• Flavor Changing Processes in Supersymmetric Models with Hybrid Gauge- and Gravity-Mediation
• Flavorful Supersymmetry from Higher Dimensions
• Models and Phenomenology of Maximal Flavor Violation
• Naturally Flavorful Supersymmetry at the LHC
• Collider Signals of Maximal Flavor Violation: Same-Sign Leptons from Same-Sign Tops at the Tevatron

Cited by in corpus (2)

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