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

Research output: Contribution to journalArticle

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 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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