Improved constraints on $γ$: CKM2014 update

I report on an updated combination of all currently available tree-level measurements of the CKM angle $γ$ from LHCb. This combination currently gives LHCb's most precise value of $γ= (73^{+9}_{-10})^\circ$ obtained from $B\to DK$-like decays. For the first time in a single experiment, the uncertainty has dropped below $10^\circ$. When using $B\to Dπ$ decays in addition, the situation becomes more difficult to interpret.

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