Programs

Home Page of SuSpect :
a program for the calculation of the SUpersymmetric particle SPECTrum

Authors:	Abdelhak Djouadi, Jean-Loic Kneur and Gilbert Moultaka
	(Charles Coulomb, CNRS & Université Montpellier).
Latest version :	2.52 latest modifications on October 21, 2019.
hep-ph/0211331 :	official reference to be used for the program.

This Fortran code calculates the SUSY and Higgs particle spectrum in the unconstrained Minimal Supersymmetric Standard Model (MSSM), as well as in constrained models (cMSSMs) such as the minimal Supergravity (mSUGRA), the gauge mediated (GMSB) and anomaly mediated (AMSB) Supersymmetry breaking scenarii. All important features and ingredients are included:

renormalization group evolution between low and high energy scales,
consistent implementation of radiative electroweak symmetry breaking,
calculation of the physical particle masses with radiative corrections.

Downloading the latest SuSpect2 version needed files:

SuSpect252.gz: all needed SuSpect2 routines in compressed format (latest version 2.52, Oct 21, 2019).
Main changes in version > 2.5:

Improved (more complete) radiative corrections for all sparticle masses; some changes in output mixing angles. Version 2.52: some bugs (of former version 2.51) corrected in chargino mass radiative corrections.
- Compiled list of modifications/corrected bugs are indicated explicitly in this file.

Information on SuSpect:

Short explanations to run the code are given in the file SuSpect2.readme.
A short "users manual" can be obtained here (reference is also here )
To be advised about future SuSpect updates or important modifs/bug corrections, click here.
(NB for more minor modifs, please check that you download the latest version by looking at the file numbers (ver 2.**) and corresponding release dates as indicated above)

For additional information, comments, complaints or suggestions please E-mail to: J-L Kneur.

SuSpect3 (C++) version 3: Release alpha

Abdelhak Djouadi, Jean-Loic Kneur, Gilbert Moultaka, Michael Ughetto, Dirk Zerwas

suspect3-LH.pdf gives a preliminary description and motivations.

For more specific SuSpect3.alpha C++ installation/compilation issues please contact D. Zerwas
SuSpect3-alpha.tar.gz: all needed SuSpect3 C++ files in compressed format.

Please note that in the SuSpect3 SLHA input file the first label changes in BLOCK SUSPECT_CONFIG example

Many more input examples are distributed with the source files and stored under the examples directory.

Noteworthy features of previous versions:
Main changes in previous version 2.43:
-Few bugs corrected (gnu fortran read/write issues; one bug related to light Higgs mass stability at very high soft scalar terms for low (EWSB) scale input with MA_pole, MU input, see details here

Main changes in previous versions 2.40/2.41 (May 8, Aug. 5 2008):
-Upgraded compatibility with latest SLHA (ver 2) input/output files and conventions. ! users of previous versions <= 2.34: please read here about some input convention changes to conform SLHA input formats
-Improved algorithms for some input choices (typically MA_pole,MU input etc)
-Faster RGE algorithm
NB none of these modifications affect the 'basic' spectrum calculation, so sparticle masses should be identical to ver. 2.34 (up to minute changes due to slight modifications in RGE algorithms, precision, etc...).

-Version 2.3--2.34 (May 2005):
Consistent calculation in the DRbar renormalisation scheme of Higgs mass radiative corrections at one-loop + dominant 2-loop (courtesy of Pietro Slavich routines and input). Plus many additions/improvements in other radiative corrections, few bugs corrected (see details in section "Modifs/corrected bugs" below).
-Options to read input and write output files in the "Les Houches accord" (SLHA) format (see hep-ph/0311123).
-Information in output files on experimentally constrained (g_mu -2, Br(b-> s gamma),..) or theoretically constrained (fine-tuning) quantities.
Full two-loop Renormalization Group Evolution for all beta functions.

To upgrade with SuSpect ver > 2.32 already existing interfaces with previous (old) SuSpect versions click here.

Older versions :

v 2.34 of (last modif) May 13, 2005: SuSpect2_old

Bottom-up RGE option for info: input file sample: suspect2_lha_bottup.in
(SPS1a benchmark point at GUT scale recovered from low energy input with MA_pole, MU(EWSB scale) input;
corresponding output in: suspect2_lha_bottup.out

Other Suspect-related examples: maximal lightest Higgs mass scenario in unconstrained MSSM (see hep-ph/0406166 for a detailed discussion of Higgs mass predictions in constrained and unconstrained MSSM models):
Input file sample
Corresponding output file