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In this paper, we study the upper bounds on the mass insertion parameters$(\delta^{q}_{AB})_{ij}$ in the minimal supersymmetric standard model (MSSM).We found that the information from the measured branching ratio of $B \to X_sl^+ l^-$ decay can help us to improve the upper bounds on the mass insertionsparameters $\left (\delta^{u,d}_{AB})_{3j,i3}$. Some regions allowed by thedata of $Br(B \to X_s \gamma) $ are excluded by the requirement of a SM-like$C_{7\gamma}(m_b)$ imposed by the data of $Br(B \to X_s l^+ l^-)$.Comment: 16 pages, 5 eps figure files, typos remove

communications in theoretical physics/communications in theoretical physics

B → X s γ, X s l + l − Decays and Constraints on Mass Insertion Parameters in MSSM