# QRAP: A numerical code for projected (Q)uasiparticle (RA)ndom (P)hase approximation

## Description

Abstract A computer code for quasiparticle random phase approximation - QRPA and projected quasiparticle random phase approximation - PQRPA models of nuclear structure is explained in details. The residual interaction is approximated by a simple δ-force. An important application of the code consists in evaluating nuclear matrix elements involved in neutrino-nucleus reactions. As an example, cross sections for ^(56)Fe and ^(12)C are calculated and the code output is explained. The application to ot... Title of program: QRAP (Quasiparticle RAndom Phase approximation) Catalogue Id: AEFZ_v1_0 Nature of problem The program calculates neutrino- and antineutrino-nucleus cross sections as a function of the incident neutrino energy, and muon capture rates, using the QRPA or PQRPA as nuclear structure models. Versions of this program held in the CPC repository in Mendeley Data AEFZ_v1_0; QRAP (Quasiparticle RAndom Phase approximation); 10.1016/j.cpc.2010.02.003 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)