0000000000276982

AUTHOR

A. De La Cruz-dombriz

showing 2 related works from this author

Fitting formulae for photon spectra from WIMP annihilation

2011

Annihilation of different dark matter (DM) candidates into Standard Model (SM) particles could be detected through their contribution to the gamma ray fluxes that are measured on the Earth. The magnitude of such contributions depends on the particular DM candidate, but certain imprints of produced photon spectra may be analyzed in a model-independent fashion. In this work we provide the fitting formulae for the photon spectra generated by WIMP annihilation into quarks, leptons and gauge bosons channels in a wide range of WIMP masses.

High Energy Physics - TheoryQuarkHistoryParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Dark matterFOS: Physical sciences01 natural sciencesEducationStandard ModelNuclear physicsHigh Energy Physics - Phenomenology (hep-ph)WIMP0103 physical sciences010306 general physicsPhysicsGauge bosonAnnihilation010308 nuclear & particles physicsFísicaComputer Science ApplicationsHigh Energy Physics - PhenomenologyHigh Energy Physics - Theory (hep-th)Weakly interacting massive particlesAstrophysics - Cosmology and Nongalactic AstrophysicsLeptonJournal of Physics: Conference Series
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Reliability of Monte Carlo event generators for gamma-ray dark matter searches

2013

We study the differences in the gamma-ray spectra simulated by four Monte Carlo event generator packages developed in particle physics. Two different versions of PYTHIA and two of HERWIG are analyzed, namely PYTHIA 6.418 and HERWIG 6.5.10 in Fortran and PYTHIA 8.165 and HERWIG 2.6.1 in C++. For all the studied channels, the intrinsic differences between them are shown to be significative and may play an important role in misunderstanding dark matter signals.

Nuclear and High Energy PhysicsParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)FortranMonte Carlo methodDark matterFOS: Physical sciencesGamma ray spectra01 natural sciencesHigh Energy Physics - Phenomenology (hep-ph)Reliability (semiconductor)0103 physical sciences010303 astronomy & astrophysicsEvent generatorcomputer.programming_languageHigh Energy Astrophysical Phenomena (astro-ph.HE)Physics010308 nuclear & particles physicsGamma rayFísicaHigh Energy Physics - PhenomenologyMonte Carlo SimulationsAstrophysics - High Energy Astrophysical PhenomenacomputerEvent (particle physics)Astrophysics - Cosmology and Nongalactic Astrophysics
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