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arXiv · 1510.03990

Measurements of CP violation in B mixing through $B \to J/ψX$ decays at LHCb

Greig A. Cowan
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Abstract

B mesons provide an ideal laboratory for measurements of CP violation and searches for CP violation beyond the Standard Model. Recent measurements of the mixing phases of the $B_s^0$ and $B^0$ mesons, $ϕ_s$ and $\sin2β$, using decays to $J/ψX$ final states are presented. In view of future improved measurements, a good understanding of pollution from sub-leading penguin topologies in these decays is needed. Those can be probed using suppressed decays like $B_s^0 \to J/ψK_S^0$ and $B_s^0 \to J/ψ\overline{K}^{*0}$. Recent results using these decay modes are presented.

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Greig A. Cowan. 2015-10-19. Measurements of CP violation in B mixing through $B \to J/ψX$ decays at LHCb. https://arxiv.org/abs/1510.03990

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