NMSSMTOOLS

Latest update: 08.04.2026, version 6.2.0

Directory NMSSMTools_6.2.0 (tared and gzipped), contains NMHDECAY, NMSPEC, NMGMSB, NMHDECAY_CPV, NMSDECAY, EXPCON (experimental constraints), SAMPLES (sample input and output files), micrOMEGAs v6.0
and SmodelS v3.0.

How to use NMSSMTools: README (plain text).

Changes in version 6.2.0 (H_SM is the SM-like 125 GeV Higgs, H/A are heavier states and h/a lighter)

- Improved combination of signals and comparison to experimental limits for different states in the H/A → 2τ channel (CMS and ATLAS), taking into account experimental resolution and H/A widths. Also applied in the 2b and 2t channels.
- New constraints on
- H/H_SM/h → invisible   from ATLAS (arXiv:2202.07953),
- h/a → 2γ   from ATLAS (arXiv:2211.04172),
- h/a → 2τ   from ATLAS (arXiv:2409.20381),
- H/A → 2γ   from ATLAS (arXiv:2102.13405),
- H/A → 2b   from CMS (arXiv:2502.06568),
- H/A → 2t   from ATLAS (arXiv:2408.17164),
- H/A → Zγ   from ATLAS (arXiv:2304.11962 and arXiv:2309.04364),
- H/A → H_SM h/a → 2b2γ   from CMS (arXiv:2508.11494) and ATLAS (arXiv:2404.12915),
- H/A → H_SM h/a → 2τ2γ   from CMS (arXiv:2506.23012),
- H → H_SM h → 2b2V   from CMS (arXiv:2602.00273 and arXiv:2602.18223),
- H → H_SM h → 2τ2V   from ATLAS (arXiv:2307.11120),
- H → H_SM H_SM → 4b   from ATLAS (arXiv:2404.17193 and arXiv:2210.05415),
- A → ZH → ZZZ   from ATLAS (arXiv:2401.04742),
- A → ZH → ZH_SM H_SM → Z4b   from ATLAS (arXiv:2210.05415),
- H_SM → hh/aa → 2γ2τ   from ATLAS (arXiv:2412.14046).

NB: For some of the constraints above, the same final states have already been searched for in CMS and/or ATLAS (and the resulting constraints integrated in NMSSMTools) but either in a different mass range or in a different production mode. Hence they are listed as new constraints and not updated constraints.
- Updated constraints on
- H/A → 2t   from CMS (arXiv:2507.05119) with thanks to Afiq Anuar for fixing corrupted HEPdata files,
- H → ZZ   from ATLAS (arXiv:2009.14791),
- H → WW   from ATLAS (ATLAS-CONF-2022-066),
- H → H_SM H_SM → 2b2τ   from CMS (arXiv:2601.20011),
- A → ZH_SM → 2l2τ   from CMS (arXiv:2501.14825),
- H_SM → Za → Z2γ   from ATLAS (arXiv:2312.01942),
- H_SM → hh/aa → 2b2τ   and   2b2μ   from CMS (arXiv:2402.13358),
- H_SM → hh/aa → 4b   from ATLAS (arXiv:2507.01165),
- H_SM → hh/aa → 4τ   from CMS (arXiv:2508.06947) and ATLAS (arXiv:2503.05463),
- H_SM → hh/aa → 4μ   from CMS (arXiv:2407.20425),
- H_SM → hh/aa → 4γ   from CMS (arXiv:2601.00183 and arXiv:2208.01469) and ATLAS (arXiv:2312.03306),
- BR(H_SM → invisible) < 13%   from CMS (arXiv:2602.18611).

- Updated constraints on dark matter direct detection cross sections from
- LUX-ZEPLIN (SI, SDn and SDp) from arXiv:2410.17036 and arXiv:2512.08065,
- PandaX_4T (SI, SDn and SDp) from arXiv:2507.11930,
- XENON_NT (SI and SDn) from arXiv:2601.11296,
- DarkSide50 (SI) from arXiv:2511.13629.

- Compiler dependent bugs corrected in NMSDecay with thanks to Rahul Puri and Alexander Pukhov.