Simulation of electron trajectories in nuclear emulsion and its application

Atsushi Iyono , Saya Yamamoto , Hiroki Matsumoto , Kazuhide Okei, Takao Nakatsuka

Multiple Coulomb Scattering, Moliere theory
Energies of charged particle are determined in nuclear emulsion experiments by tracing trajectories
of charged particle and analyzing their multiple scattering properties. Traditionally they use
multiple scattering theory under the gaussian approximation and determine the energies from the
mean square deflection angle. Multiple scattering theory is improved today to take account the
single and the plural scatterings together, where the mean square deflection angle almost diverges.
We examine feasibility of the most likelihood method with Moliere theory of multiple scattering
to determine the energy of charged particle. We also examine Moliere simultaneous distribution
to determine the energy more accurately
The 34th International Cosmic Ray Conference,

Proceedings of Science

PoS

ICRC2015

957

964