Reliability of Monte Carlo event generators for gamma-ray dark matter searches

A bstract 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++...

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Veröffentlicht in:	The journal of high energy physics 2013-09, Vol.2013 (9), p.1-21, Article 77
Hauptverfasser:	Cembranos, J. A. R., de la Cruz-Dombriz, A., Gammaldi, V., Lineros, R. A., Maroto, A. L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Channels Classical and Quantum Gravitation Computer simulation Dark matter Elementary Particles FORTRAN Gamma rays Generators High energy physics Monte Carlo methods Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Relativity Theory Spectra String Theory
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Beschreibung
Zusammenfassung:	A bstract 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.
ISSN:	1029-8479 1029-8479
DOI:	10.1007/JHEP09(2013)077