Computing decay rates for new physics theories with FeynRules and MadGraph 5_aMC@NLO - INSPIRE

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Computing decay rates for new physics theories with FeynRules and MadGraph 5_aMC@NLO

Johan Alwall
(
- Taiwan, Natl. Taiwan U.
)
,
Claude Duhr
(
- Durham U.
)
,
Benjamin Fuks
(
- CERN and
- Strasbourg, IPHC
)
,
Olivier Mattelaer
(
- Cathol. U. Louvain (main)
)
,
Deniz Gizem Öztürk
(
- Zurich U.
)

Feb 5, 2014

12 pages

Published in:

Comput.Phys.Commun. 197 (2015) 312-323

Published: Dec, 2015

e-Print:

1402.1178 [hep-ph]

DOI:

10.1016/j.cpc.2015.08.031

Report number:

CERN-PH-TH-2014-020,
MCNET-14-03,
IPPP-14-10,
DCPT-14-20,
CP3-14-11,
CALT-68-2877,
ZU-TH-02-14

View in:

reference search140 citations

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Abstract: (Elsevier)

We present new features of the FeynRules and MadGraph 5 _aMC@NLO programs for the automatic computation of decay widths that consistently include channels of arbitrary final-state multiplicity. The implementations are generic enough so that they can be used in the framework of any quantum field theory, possibly including higher-dimensional operators. We extend at the same time the conventions of the Universal FeynRules Output (or UFO) format to include decay tables and information on the total widths. We finally provide a set of representative examples of the usage of the new functions of the different codes in the framework of the Standard Model, the Higgs Effective Field Theory, the Strongly Interacting Light Higgs model and the Minimal Supersymmetric Standard Model and compare the results to available literature and programs for validation purposes.

Note:

32 pages, 2 figures. Published version

Model building
field theory
effective field theory
operator: higher-dimensional
little Higgs model
minimal supersymmetric standard model
decay rate
final state: multiplicity
numerical calculations
new physics

References(47)

Figures(2)

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