Results and prospects of B-physics

The ATLAS B-physics program is introduced with a brief mentioning of the relevant sub-detectors and B-physics triggers. The latest Run 1 public results, including the new-physics sensitive angular analysis of $B^0 \rightarrow \mu^+\mu^-K^{*0}$ decay, are presented. Prospects of full Run 2 and HL-LHC results and the effects of detector upgrades such as the IBL in Run 2 and ITk in HL-LHC are discussed. The expected improved results under different scenarios for the CP violation in $B^0_s\rightarrow J/\psi\phi$ and the rare decay of $\mathcal{B}(B_{(