SUSY-QCD corrected and Sommerfeld enhanced stau annihilation into heavy quarks with scheme and scale uncertainties

Abstract

We investigate stau-antistau annihilation into heavy quarks in the phenomenological Minimal Supersymmetric Standard Model within the DM@NLO project. We present the calculation of the corresponding cross section including corrections up to $\mathcal{O}({\alpha }_s)$ and QED Sommerfeld enhancement. The numerical impact of these corrections is discussed for the cross section and the dark matter relic density, where we focus on top-quark final states and consider either neutralino or gravitino dark matter. Similarly to previous work, we find that the presented corrections should be included when calculating the relic density or extracting parameters from cosmological observations. Considering scheme and scale variations, we estimate the theoretical uncertainty that affects the prediction of the annihilation cross section and thus the prediction of the relic density.

arXiv comment12 pages, 11 figures. Minor changes, matches published version

References in corpus (54)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results
• Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS Experiments
• SPheno, a program for calculating supersymmetric spectra, SUSY particle decays and SUSY particle production at e+ e- colliders
• DarkSUSY: Computing Supersymmetric Dark Matter Properties Numerically
• SPheno 3.1: extensions including flavour, CP-phases and models beyond the MSSM
• micrOMEGAs3.1 : a program for calculating dark matter observables
• micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
• Neutralino Relic Density including Coannihilations
• JaxoDraw: A graphical user interface for drawing Feynman diagrams
• micrOMEGAs: A program for calculating the relic density in the MSSM
• The Dipole Formalism for Next-to-Leading Order QCD Calculations with Massive Partons
• SUSY Les Houches Accord: Interfacing SUSY Spectrum Calculators, Decay Packages, and Event Generators
• Thermal Production of Gravitinos
• The Dipole Formalism for the Calculation of QCD Jet Cross Sections at Next-to-Leading Order
• micrOMEGAs5.0 : freeze-in
• SUSY Les Houches Accord 2
• JaxoDraw: A graphical user interface for drawing Feynman diagrams. Version 2.0 release notes
• Calculations of Neutralino-Stau Coannihilation Channels and the Cosmologically Relevant Region of MSSM Parameter Space
• Neutralino-Stau Coannihilation and the Cosmological Upper Limit on the Mass of the Lightest Supersymmetric Particle
• Thermal Gravitino Production and Collider Tests of Leptogenesis
• Thermal production of gravitinos
• Sommerfeld Enhancements for Thermal Relic Dark Matter
• Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
• Sommerfeld factor for arbitrary partial wave processes
• DarkSUSY 6 : An Advanced Tool to Compute Dark Matter Properties Numerically
• The Sommerfeld enhancement for dark matter with an excited state
• Indirect and direct search for dark matter
• Summary of the ATLAS experiment's sensitivity to supersymmetry after LHC Run 1 - interpreted in the phenomenological MSSM
• Bound-state Effects on Top Quark Production at Hadron Colliders
• Full one-loop corrections to the relic density in the MSSM: A few examples
• The one-loop and Sommerfeld electroweak corrections to the Wino dark matter annihilation
• Self-annihilation of the neutralino dark matter into two photons or a Z and a photon in the MSSM
• Relic density at one-loop with gauge boson pair production
• Neutralino-stop co-annihilation into electroweak gauge and Higgs bosons at one loop
• Constraints on Supersymmetric Models from Catalytic Primordial Nucleosynthesis of Beryllium
• The Sommerfeld enhancement for scalar particles and application to sfermion co-annihilation regions
• The New Look pMSSM with Neutralino and Gravitino LSPs
• SUSY-QCD Corrections to Dark Matter Annihilation in the Higgs Funnel
• Collider limits on new physics within micrOMEGAs4.3
• Neutralino Annihilation into Massive Quarks with SUSY-QCD Corrections
• One-loop corrections to neutralino-stop coannihilation revisited
• Flavour Violation in Gauge-Mediated Supersymmetry Breaking Models: Experimental Constraints and Phenomenology at the LHC
• SUSY-QCD effects on neutralino dark matter annihilation beyond scalar or gaugino mass unification
• SUSY-QCD corrections to stop annihilation into electroweak final states including Coulomb enhancement effects
• Theoretical uncertainty of the supersymmetric dark matter relic density from scheme and scale variations
• Radiative corrections to co-annihilation processes
• Gravitino LSP and leptogenesis after the first LHC results
• One-loop corrections to gaugino (co-)annihilation into quarks in the MSSM
• Potentially Large One-loop Corrections to WIMP Annihilation
• Gluino-Squark Production at the LHC: The Threshold
• Squark-pair annihilation into quarks at next-to-leading order
• LHC constraints on Gravitino Dark Matter

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• Dark Matter bound-state formation at higher order: a non-equilibrium quantum field theory approach
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• Relic density of dark matter in the inert doublet model beyond leading order for the low mass region: 1. Renormalisation and constraints
• Absolute neutrino mass as the missing link to the dark sector
• Higgsino and gaugino pair production at the LHC with aNNLO+NNLL precision
• Precision predictions for dark matter with DM@NLO in the MSSM
• New constraints on radiative seesaw models from IceCube and other neutrino detectors
• Dark Matter in the CP-violating NMSSM
• Radiative corrections to stop-antistop annihilation into gluons and light quarks
• The dipole formalism for massive initial-state particles and its application to dark matter calculations
• The Forward Physics Facility at the High-Luminosity LHC