Search for the rare decay W±→π± + γ in proton-antiproton collisions at √s=1.8 TeV

F. Abe*, H. Akimoto, A. Akopian, M. G. Albrovv, A. Amadon, S. R. Amendolia, D. Amidei, J. Antos, S. Aota, G. Apollinari, T. Arisawa, T. Asakawa, W. Ashmanskas, P. Azzi-Bacchetta, S. Bagdasarov, P. De Barbara, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, F. BedeschiS. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Bensinger, A. Beretvas, J. P. Berge, J. Berryhill, S. Bertolucci, S. Bettelli, B. Bevensee, A. Bhatti, K. Biery, C. Bigongiari, M. Binkley, D. Bisello, R. E. Blair, C. Blocker, S. Blusk, A. Bodek

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We have searched for the rare decay W± π± ir + y in 83 pb of data taken in proton-antiproton collisions at Vs = 1.8 TeV with the Collider Detector at Fermilab. We find three events in the signal region and estimate the background to be 5.2±1.5 events. We set a 95% confidence level upper limit of 7X 10~4 on the ratio of partial widths, r(W±→π± + y)/r(W±-e± + v).

Original languageEnglish
Article number031101
Pages (from-to)311011-311015
Number of pages5
JournalPhysical Review D
Issue number3
Publication statusPublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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