PT Journal
AU Cembranos, JAR
   de la Cruz-Dombriz, A
   Gammaldi, V
   Lineros, RA
   Maroto, AL
TI Reliability of Monte Carlo event generators for gamma-ray dark matter searches
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2013
BP 077
EP 21pp
VL 09
IS 9
DI 10.1007/JHEP09(2013)077
AB 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.
ER