The program N2HDECAY is a modified version of HDECAY 6.51.
It allows for the calculation of the partial decay widths and branching ratios of the
Higgs bosons of the N2HDM, i.e. the CP-conserving 2HDM extended by a real scalar singlet field.

Released by: Margarete Mühlleitner, Marco Sampaio, Rui Santos and Jonas Wittbrodt
Program: N2HDECAY obtained from extending HDECAY 6.51

When you use this program, please cite the following references:
N2HDECAY: M. Mühlleitner, M. Sampaio, R. Santos, J. Wittbrodt, JHEP 1703 (2017) 094
HDECAY: A. Djouadi, J. Kalinowski, M. Spira, Comput. Phys. Commun. 108 (1998) 56
An update of HDECAY: A. Djouadi, J. Kalinowski, Margarete Muhlleitner, M. Spira, in arXiv:1003.1643

Informations on the Program:
  • Short explanations on the program are given here.
  • NEW: Modifs/corrected bugs are indicated explicitly in this file.

Downloading the files needed for N2HDECAY:
  • n2hdecayfiles.tar.gz contains the program package files: the input file n2hdecay.in; n2hdecay.f, dmb.f, elw.f, feynhiggs.f, haber.f, hgaga.f, hgg.f, hsqsq.f, susylha.f.
  • makefile for the compilation.

Example for an output file:

The input file n2hdecay.in provides the output files br.H1_N2HDM_a, br.H1_N2HDM_b, br.H1_N2HDM_c, br.H2_N2HDM_a, br.H2_N2HDM_b, br.H2_N2HDM_c, br.H3_N2HDM_a, br.H3_N2HDM_b, br.H3_N2HDM_c, br.H3_N2HDM_d, br.A_N2HDM_a, br.A_N2HDM_b, br.A_N2HDM_c, br.H+_N2HDM_a, br.H+_N2HDM_b and br.H+_N2HDM_c

For additional information, comments, complaints or suggestions please e-mail to: Jonas Wittbrodt, Margarete Mühlleitner.