Search for the Rare Radiative Decay: $W\rightarrowπγ$ in \ppbar\ Collisions at $\sqrt{s} = 1.96$ TeV

Details Search for the Rare Radiative Decay: $W\rightarrowπγ$ in \ppbar\ Collisions at $\sqrt{s} = 1.96$ TeV Search for the Rare Radiative Decay: $W\rightarrowπγ$ in \ppbar\ Collisions at $\sqrt{s} = 1.96$ TeV

2011-04-08

arxiv.org/abs/1104.1585v1

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

We present a search for the rare radiative decay \wpigamma\ using data corresponding to an integrated luminosity of 4.3 \invfb\ of proton-antiproton collisions at a center of mass energy of 1.96 TeV collected by the CDF experiment at Fermilab. As no statistically significant signal is observed, we set a 95% confidence level upper limit on the relative branching fraction \bratio\ at $6.4\times 10^{-5}$, a factor of 10 improvement over the previous limit.

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