GravitinoPack and decays of supersymmetric metastable particles

Published: 01-05-2016| Version 1 | DOI: 10.17632/9b5mbjschj.1
Helmut Eberl,
Vassilis C. Spanos


Abstract We present the package GravitinoPack that calculates the two- and three-body decays of unstable supersymmetric particles involving the gravitino in the final or initial state. In a previous paper, we already showed results for the gravitino decaying into two and three particles. In this paper, we incorporate the processes where an unstable neutralino, stau or stop decays into a gravitino and Standard Model particles. This is the case in gravitino dark matter supersymmetric models, where the g... Title of program: GravitinoPack Catalogue Id: AEZL_v1_0 Nature of problem If Supersymmetry (SUSY) is realized in nature, each Standard Model (SM) particle is accompanied by its superpartner. The gravitino, the spin 3/2 superpartner of the graviton, belongs to the spectrum of the most important supersymmetric models. The gravitino can be the Lightest Supersymmetric Particle (LSP), in the so-called gravitino Dark Matter (DM) models. Thus, the Next to the Lightest Supersymmetric Particle (NLSP) is long-lived, since it decays gravitationally to the LSP (gravitino) and SM ... Versions of this program held in the CPC repository in Mendeley Data AEZL_v1_0; GravitinoPack; 10.1016/j.cpc.2015.12.027 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)