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Type: Journal article
Title: SpecBit, DecayBit and PrecisionBit: GAMBIT modules for computing mass spectra, particle decay rates and precision observables
Author: Athron, P.
Balazs, C.
Dal, L.
Edsjo, J.
Farmer, B.
Gonzalo, T.
Kvellestad, A.
McKay, J.
Putze, A.
Rogan, C.
Scott, P.
Weniger, C.
White, M.
Citation: European Physical Journal C: Particles and Fields, 2018; 78(1):22-1-22-71
Publisher: Springer
Issue Date: 2018
ISSN: 1434-6044
Statement of
Peter Athron, Csaba Balázs, Lars A. Dal, Joakim Edsjö, Ben Farmer, Tomás E. Gonzalo, Anders Kvellestad, James McKay, Antje Putze, Chris Rogan, Pat Scott, Christoph Weniger, Martin White
Abstract: We present the GAMBIT modules SpecBit, DecayBit and PrecisionBit. Together they provide a new framework for linking publicly available spectrum generators, decay codes and other precision observable calculations in a physically and statistically consistent manner. This allows users to automatically run various combinations of existing codes as if they are a single package. The modular design allows software packages fulfilling the same role to be exchanged freely at runtime, with the results presented in a common format that can easily be passed to downstream dark matter, collider and flavour codes. These modules constitute an essential part of the broader GAMBIT framework, a major new software package for performing global fits. In this paper we present the observable calculations, data, and likelihood functions implemented in the three modules, as well as the conventions and assumptions used in interfacing them with external codes. We also present 3-BIT-HIT, a command-line utility for computing mass spectra, couplings, decays and precision observables in the MSSM, which shows how the three modules can easily be used independently of GAMBIT.
Rights: © The Author(s) 2018. This article is an open access publication
DOI: 10.1140/epjc/s10052-017-5390-8
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Chemistry and Physics publications

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