Search for the Rare Radiative Decay: $W\rightarrow\pi\gamma$ in $p\bar{p}$ Collisions at $\sqrt{s} = 1.96$ TeV - INSPIRE

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Search for the Rare Radiative Decay: $W\rightarrow\pi\gamma$ in $p\bar{p}$ Collisions at $\sqrt{s} = 1.96$ TeV

CDF

Collaboration

Apr, 2011

15 pages

Published in:

Phys.Rev.D 85 (2012) 032001

e-Print:

1104.1585 [hep-ex]

DOI:

10.1103/PhysRevD.85.032001

PDG:

{{\mathit W}^{+}}

\rightarrow

{{\mathit e}^{+}}{{\mathit \nu}}

Report number:

FERMILAB-PUB-11-171-E

Experiments:

FNAL-E-0830

View in:

reference search15 citations

Citations per year

Abstract: (arXiv)

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.

12.15.Ji
13.38.Be
14.70.Fm
anti-p p: inclusive reaction
W: hadroproduction
W: radiative decay
W: branching ratio: upper limit
CDF
experimental results
Batavia TEVATRON Coll

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