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$B^0 -\overline{B^0}$ mixing, $B\rightarrow J/\psi K_s$ and $B\rightarrow X_d \gamma$ in general MSSM (2002)

Ko, P. ; Kramer, G. ; Park, J.-h.

Springer

The European physical journal 25 (2002), S. 615-622

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ISSN: 1434-6052

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract. We consider the gluino-mediated SUSY contributions to B0 - $ \overline{B^0}$ mixing, $B\rightarrow J/\psi K_s$ and $B\rightarrow X_d \gamma$ in the mass insertion approximation. We find that the (LL) mixing parameter can be as large as $\vert (\delta_{13}^d)_{\mathrm {{LL}}} \vert \lesssim 2 \times 10^{-1}$ , but the (LR) mixing is strongly constrained by the $B\rightarrow X_d \gamma$ branching ratio and we find $\vert (\delta_{13}^d)_{\mathrm {{LR}}} \vert \lesssim 10^{-2}$ . The implications for the direct CP asymmetry in $B\rightarrow X_d \gamma$ and the dilepton charge asymmetry (All) are also discussed, where substantial deviations from the standard model (SM) predictions are possible.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1140/epjc/s2002-01029-x

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