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



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López Maroto, Antonio and Cruz Dombriz, Álvaro de la and Ruiz Cembranos, José Alberto and Gammaldi, Viviana and Lineros, Roberto A. (2013) Reliability of Monte Carlo event generators for gamma-ray dark matter searches. Journal of High Energy Physics (9). ISSN 1029-8479

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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 mportant role in misunderstanding dark matter signals.

Item Type:Article
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This work was supported by UCM FPI grants G/640/400/8000 (2011 Program), the Spanish MINECO projects numbers FIS2011 23000, FPA2011-27853-C02-01, FPA2011-22975 and MULTIDARK CSD2009-00064 (Consolider-Ingenio 2010 Programme). AdlCD also acknowledges _nancial support from Marie Curie - Beatriu de Pinos contract BP-B00195, Generalitat de Catalunya and ACGC, University of Cape Town. RL also acknowledges Prometeo/2009/091 (Generalitat Valenciana) and EU ITN UNILHC PITN-GA-2009-237920 _nancial support.

Uncontrolled Keywords:Galactic-Center, Models, Halos, Contraction, Simulation, Telescope, Direction, Baryons
Subjects:Sciences > Physics
ID Code:25976
Deposited On:07 Jul 2014 15:09
Last Modified:19 Feb 2015 09:14

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