Determining the unitarity triangle angle $γ$ with a four-body amplitude analysis of $\rm B^\pm \to (K^+K^-π^+π^-)_D K^\pm$ decays

Details Determining the unitarity triangle angle $γ$ with a four-body amplitude analysis of $\rm B^\pm \to (K^+K^-π^+π^-)_D K^\pm$ decays Determining the unitarity triangle angle $γ$ with a four-body amplitude analysis of $\rm B^\pm \to (K^+K^-π^+π^-)_D K^\pm$ decays

2006-11-21

arxiv.org/abs/hep-ph/0611272v3

Phys.Lett.B647:400-404,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 3 figures. (This version has bug in equation 4 fixed, and minor modification to references.)

Scientific paper

10.1016/j.physletb.2007.01.071

We explain how a four-body amplitude analysis of the $\rm D$ decay products
in the mode $\rm B^\pm \to (K^+K^-\pi^+\pi^-)_D K^\pm$ is sensitive to the
unitarity triangle angle $\gamma$. We present results from simulation studies
which show that a precision on $\gamma$ of $15^\circ$ is achievable with 1000
events and assuming a value of 0.10 for the parameter $r_B$.

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