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Journal of High Energy Physics

, 2013:77 | Cite as

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

  • J. A. R. Cembranos
  • A. de la Cruz-Dombriz
  • V. Gammaldi
  • R. A. Lineros
  • A. L. Maroto
Article

Abstract

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.

Keywords

Monte Carlo Simulations 

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Copyright information

© SISSA, Trieste, Italy 2013

Authors and Affiliations

  • J. A. R. Cembranos
    • 1
  • A. de la Cruz-Dombriz
    • 2
    • 3
  • V. Gammaldi
    • 1
  • R. A. Lineros
    • 4
  • A. L. Maroto
    • 1
  1. 1.Departamento de Física Teórica IUniversidad Complutense de MadridMadridSpain
  2. 2.Instituto de Ciencias del Espacio (ICE/CSIC) and Institut d’Estudis Espacials de Catalunya (IEEC), Campus UAB, Facultat de CiènciesBellaterra (Barcelona)Spain
  3. 3.Astrophysics, Cosmology and Gravity Centre (ACGC) and Department of Mathematics and Applied MathematicsUniversity of Cape TownCape TownSouth Africa
  4. 4.Instituto de Física Corpuscular (CSIC-Universitat de València)ValenciaSpain

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