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Studying double charm decays of B u , d and B s mesons in the MSSM with R -parity violation

Studying double charm decays of B u , d and B s mesons in the MSSM with R -parity violation Motivated by the possible large direct C P asymmetry of B ¯ d 0 → D + D - decays measured by the Belle Collaboration, we investigate double charm B u , d and B s decays in the minimal supersymmetric standard model with R -parity violation. We derive the bounds on relevant R -parity violating couplings from the current experimental data, which show quite consistent measurements among relative collaborations. Using the constrained parameter spaces, we explore R -parity violating effects on other observables in these decays, which have not been measured or have not been well measured yet. We find that the R -parity violating effects on the mixing-induced C P asymmetries of B ¯ d 0 → D ( * ) + D ( * ) - and B ¯ s 0 → D s ( * ) + D s ( * ) - decays could be very large; nevertheless, the R -parity violating effects on the direct C P asymmetries could not be large enough to explain the large direct C P violation of B ¯ d 0 → D + D - from Belle. Our results could be used to probe R -parity violating effects and will correlate with searches for direct R -parity violating signals in future experiments. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Studying double charm decays of B u , d and B s mesons in the MSSM with R -parity violation

Physical Review D , Volume 79 (5) – Mar 1, 2009
15 pages

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References (54)

Publisher
American Physical Society (APS)
Copyright
Copyright © 2009 The American Physical Society
ISSN
1550-2368
DOI
10.1103/PhysRevD.79.055004
Publisher site
See Article on Publisher Site

Abstract

Motivated by the possible large direct C P asymmetry of B ¯ d 0 → D + D - decays measured by the Belle Collaboration, we investigate double charm B u , d and B s decays in the minimal supersymmetric standard model with R -parity violation. We derive the bounds on relevant R -parity violating couplings from the current experimental data, which show quite consistent measurements among relative collaborations. Using the constrained parameter spaces, we explore R -parity violating effects on other observables in these decays, which have not been measured or have not been well measured yet. We find that the R -parity violating effects on the mixing-induced C P asymmetries of B ¯ d 0 → D ( * ) + D ( * ) - and B ¯ s 0 → D s ( * ) + D s ( * ) - decays could be very large; nevertheless, the R -parity violating effects on the direct C P asymmetries could not be large enough to explain the large direct C P violation of B ¯ d 0 → D + D - from Belle. Our results could be used to probe R -parity violating effects and will correlate with searches for direct R -parity violating signals in future experiments.

Journal

Physical Review DAmerican Physical Society (APS)

Published: Mar 1, 2009

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