Search for the rare decay {ital W}{sup {bold {plus_minus}}}{bold {r_arrow}}{bold {pi}}{sup {bold {plus_minus}}}{bold +{gamma}}
We have searched for the rare decay {ital W}{sup {plus_minus}}{r_arrow}{pi}{sup {plus_minus}}+{gamma} in 16.7 pb{sup {minus}1} of data taken in proton-antiproton collisions at {radical}{ital s}=1.8 TeV with the CDF detector at Fermilab. We find one event consistent with the expected signal, and estimate the background to be 2.6{plus_minus}1.0(stat){plus_minus}1.3(syst) events. Without background subtraction, we find the ratio of partial widths to be {Gamma}({ital W}{sup {plus_minus}}{r_arrow}{pi}{sup {plus_minus}}+{gamma})/{Gamma}({ital W}{sup {plus_minus}}{r_arrow}{ital e}{sup {plus_minus}}+{nu}){le}2.0 {degree}10{sup {minus}3} at the 95{percent} confidence level. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 284504
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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