Geant4 Developments For The Radon Electric Dipole Moment Search At Triumf

E T Rand, J C Bangay,L Bianco,R Dunlop,P Finlay,P E Garrett,K G Leach,A A Phillips,C S Sumithrarachchi,C E Svensson,J Wong

INTERNATIONAL NUCLEAR PHYSICS CONFERENCE 2010 (INPC): STANDARD MODEL TESTS AND FUNDAMENTAL SYMMETRIES（2011）

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摘要

An experiment is being developed at TRIUMF to search for a time-reversal violating electric dipole moment (EDM) in odd-A isotopes of Rn. Extensive simulations of the experiment are being performed with GEANT4 to study the backgrounds and sensitivity of the proposed measurement technique involving the detection of gamma rays emitted following the beta decay of polarized Rn nuclei. GEANT4 developments for the RnEDM experiment include both realistic modelling of the detector geometry and full tracking of the radioactive beta, gamma, internal conversion, and x-ray processes, including the gamma-ray angular distributions essential for measuring an atomic EDM.

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关键词

gamma ray,electric dipole moment,time reversal,beta decay

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