Symmetry (Dec 2020)

Semi-Analytical Monte Carlo Method to Simulate the Signal of the VIP-2 Experiment

  • Edoardo Milotti,
  • Sergio Bartalucci,
  • Sergio Bertolucci,
  • Massimiliano Bazzi,
  • Mario Bragadireanu,
  • Michael Cargnelli,
  • Alberto Clozza,
  • Catalina Curceanu,
  • Luca De Paolis,
  • Raffaele Del Grande,
  • Carlo Guaraldo,
  • Mihail Iliescu,
  • Matthias Laubenstein,
  • Johann Marton,
  • Marco Miliucci,
  • Fabrizio Napolitano,
  • Kristian Piscicchia,
  • Alessandro Scordo,
  • Hexi Shi,
  • Diana Laura Sirghi,
  • Florin Sirghi,
  • Laura Sperandio,
  • Oton Vázquez Doce,
  • Johann Zmeskal

DOI
https://doi.org/10.3390/sym13010006
Journal volume & issue
Vol. 13, no. 1
p. 6

Abstract

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The VIP-2 collaboration runs an apparatus in the Gran Sasso underground laboratories of the Italian Institute for Nuclear Physics (INFN) designed to search for anomalous X-rays from electron-atom interactions due to violations of the fundamental antisymmetry of multi-electron wavefunctions. The experiment implements the scheme first proposed by Ramberg and Snow, where a current source injects electrons into a metal strip (the experiment’s target). In this paper we describe the structure of a Monte Carlo program to simulate a new upgrade of the experiment, where the anomalous X-ray emission is modulated by an arbitrary time-varying input current. A novel feature of the simulation algorithm is that the Monte Carlo program is based on a mixture of analytical and numerical methods. We report preliminary, exploratory results on the expected detection rate for different modulations of the injected current; these results are a starting point on the way to optimize the modulation scheme and indicate a large potential improvement of the detection sensitivity.

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