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arXiv · hep-ph/0112303

B_d-Bbar_d Mixing and the B_d -> J/psi K_s Asymmetry in General SUSY Models

D. Becirevic·M. Ciuchini·E. Franco·V. Gimenez·G. Martinelli·A. Masiero·M. Papinutto·J. Reyes·L. Silvestrini
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Abstract

We present a next-to-leading order determination of the gluino-mediated SUSY contributions to B_d-Bbar_d mixing and to the CP asymmetry a_{J/psi K_s} in the framework of the mass-insertion approximation. Using hadronic matrix elements recently computed on the lattice, we obtain improved constraints on the squark-mass splittings.

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D. Becirevic, M. Ciuchini, E. Franco, V. Gimenez, G. Martinelli, A. Masiero, M. Papinutto, J. Reyes, L. Silvestrini. 2001-12-21. B_d-Bbar_d Mixing and the B_d -> J/psi K_s Asymmetry in General SUSY Models. https://doi.org/10.1016/s0550-3213(02)00291-2

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