Search for Bs --> mu+mu- and Bd --> mu+mu- Decays with 2fb-1 of ppbar Collisions

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Throughout this paper inclusion of charge conjugate reactions are implied
Cited in the paper.
I = | p → T μ μ | / ( ∑ i p T i + | p → T μ μ | ) \mathit{I}=|\vec{p}^{\>\mu\mu}_{T}|/(\sum_{i}p^{i}_{T}+|\vec{p}^{\>\mu\mu}_{T}|) ; the sum is over all tracks with Δ η 2 + Δ ϕ 2 ≤ 1 \sqrt{\Delta\eta^{2}+\Delta\phi^{2}}\leq 1 ; Δ ϕ \Delta\phi and Δ η \Delta\eta are the azimuthal angle and pseudorapidity of track i i with respect to p → μ μ \vec{p}^{\>\mu\mu}
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In the mSUGRA model, we assume a common trilinear parameter A 0 = 0 A_{0}=0 and a positive Higgsino mixing parameter. In the co-annihilation region, the difference of the neutralino and stau masses is characterized to be less than 20 Ge V / c 2 20\>\mathrm{Ge\kern-1.00006ptV}/c^{2} . See Ref. [ 6 ] for details
Cited in the paper.