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Search for the rare decay W{sup {plus_minus}}{r_arrow}{pi}{sup {plus_minus}}+{gamma} in proton-antiproton collisions at {radical}(s) =1.8 TeV

Journal Article · · Physical Review, D
OSTI ID:656296
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  1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  2. Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
  3. Brandeis University, Waltham, Massachusetts 02254 (United States)
  4. University of California at Los Angeles, Los Angeles, California 90024 (United States)
  5. University of Chicago, Chicago, Illinois 60637 (United States)
  6. Duke University, Durham, North Carolina 27708 (United States)
  7. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
  8. University of Florida, Gainesville, Florida 32611 (United States)
  9. Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
  10. University of Geneva, CH-1211 Geneva 4 (Switzerland)

We have searched for the rare decay W{sup {plus_minus}}{r_arrow}{pi}{sup {plus_minus}}+{gamma} in 83 pb{sup {minus}1} of data taken in proton-antiproton collisions at {radical}(s) =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{plus_minus}1.5 events. We set a 95{percent} confidence level upper limit of 7{times}10{sup {minus}4} on the ratio of partial widths, {Gamma}(W{sup {plus_minus}}{r_arrow}{pi}{sup {plus_minus}}+{gamma})/{Gamma}(W{sup {plus_minus}}{r_arrow}e{sup {plus_minus}}+{nu}). {copyright} {ital 1998} {ital The American Physical Society}

OSTI ID:
656296
Journal Information:
Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 58; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English