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SUMMARY:Simulation of dark photon generation process e-Z -> e-ZA' for NA64
  experiment using Geant4
DTSTART;VALUE=DATE-TIME:20181024T060000Z
DTEND;VALUE=DATE-TIME:20181024T061500Z
DTSTAMP;VALUE=DATE-TIME:20260815T095544Z
UID:indico-contribution-1182@cern.ch
DESCRIPTION:Speakers: Dmitry Shchukin (Lebedev Physical Institute RAS)\nAc
 cording to some theoretical models a new dark matter gauge boson A' (dark 
 photon) might exist\, possibly coupled with ordinary photon by different(n
 on-gravitational) type of weak interaction. The NA64 experiment at  CERN S
 PS accelerator is aimed at probing an unexplored parameter space of kineti
 c gamma-A' mixing strength and mass values of A'. Experiment utilizes 100 
 GeV electron beam and the main process is the generation of A' inside an a
 ctive target via the reaction: e-Z -> e-ZA' which is possible due to gamma
 -A' mixing. The existence of A' can be determined  by presence of missing 
 energy signature events inside the target and subsequent A' decay signatur
 e events inside downstream calorimeters. The NA64's simulation software pa
 ckage provides Monte-Carlo modelling for such processes. This work is aime
 d at developing a Geant4-like implementation of a new A' particle and proc
 esses corresponding to it's production and decay for the NA64's simulation
  software package. Added modules are based on Bremsstrahlung process imple
 mentaion for e- with modified cross section computations. Developed module
 s can be later included into further versions of Geant4 simulation toolkit
 \n\nhttps://indico.particle.mephi.ru/event/22/contributions/1182/
LOCATION:Hotel Intourist Kolomenskoye 4* Alekseevskiy hall
URL:https://indico.particle.mephi.ru/event/22/contributions/1182/
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