SUSY R-parity violating contributions to the width differences for D−bar D and Bd,s−bar Bd,s systems

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Published 10 September 2007 • Published under licence by IOP Publishing Ltd
, , Citation Shao-Long Chen et al JHEP09(2007)044 DOI 10.1088/1126-6708/2007/09/044

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1 Department of Physics and Center for Theoretical Sciences, National Taiwan University, Taipei, Taiwan

Dates

  1. Received 14 June 2007
  2. Accepted 30 August 2007
  3. Published

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1126-6708/2007/09/044

Abstract

We study R-parity violating contributions to the mixing parameter y for D0−bar D0 and B0d,s−bar B0d,s systems. We first obtain general expressions for new physics contributions to y from effective four fermion operators. We then use them to study R-parity contributions. We find that R-parity violating contributions to D0−bar D0 mixing, and Bd0−bar Bd0 to be small. There may be sizable contribution to Bs0−bar Bs0 mixing. We also obtain some interesting bounds on R-parity violating parameters using known Standard Model predictions and experimental data.

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10.1088/1126-6708/2007/09/044