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Conference Papers Year : 2015

Using GPU parallelization to perform realistic simulations of the LPCTrap experiments

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F. Mauger
Ph. Velten
  • Function : Author
G. Ban
  • Function : Author
  • PersonId : 829320
B. Fabre
P. Finlay
  • Function : Author
E. Liénard
  • Function : Author
  • PersonId : 940562
T. Porobic
  • Function : Author
N. Severijns
  • Function : Author
J.C. Thomas

Abstract

The LPCTrap setup is a sensitive tool to measure the β − ν angular correlation coefficient, a β ν , which can yield the mixing ratio ρ of a β decay transition. The latter enables the extraction of the Cabibbo-Kobayashi-Maskawa (CKM) matrix element V u d . In such a measurement, the most relevant observable is the energy distribution of the recoiling daughter nuclei following the nuclear β decay, which is obtained using a time-of-flight technique. In order to maximize the precision, one can reduce the systematic errors through a thorough simulation of the whole set-up, especially with a correct model of the trapped ion cloud. This paper presents such a simulation package and focuses on the ion cloud features; particular attention is therefore paid to realistic descriptions of trapping field dynamics, buffer gas cooling and the N-body space charge effects.
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Dates and versions

in2p3-01104281 , version 1 (16-01-2015)

Identifiers

Cite

X. Fabian, F. Mauger, G. Quéméner, Ph. Velten, G. Ban, et al.. Using GPU parallelization to perform realistic simulations of the LPCTrap experiments. 6th international conference on Trapped Charged Particles and Fundamental Physics (TCP2014), Nov 2014, Takamatsu, Japan. pp.87-95, ⟨10.1007/s10751-015-1192-2⟩. ⟨in2p3-01104281⟩
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