R
R. A. Williams
Researcher at Los Alamos National Laboratory
Publications - 17
Citations - 296
R. A. Williams is an academic researcher from Los Alamos National Laboratory. The author has contributed to research in topics: Branching fraction & Particle decay. The author has an hindex of 9, co-authored 17 publications receiving 281 citations.
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Journal ArticleDOI
Search for Rare Muon Decays with the Crystal Box Detector
R. D. Bolton,M. D. Cooper,J. S. Frank,A. L. Hallin,P. Heusi,C. M. Hoffman,Gary E. Hogan,F. G. Mariam,H. S. Matis,R. E. Mischke,L. E. Piilonen,V. D. Sandberg,G. H. Sanders,Urs Sennhauser,R. Werbeck,R. A. Williams,S. L. Wilson,Robert Hofstadter,E. B. Hughes,M. W. Ritter,D. Grosnick,S. C. Wright,V. L. Highland,J. McDonough +23 more
TL;DR: A search with the Crystal Box detector shows no evidence for the lepton-family-number-nonconserving decays, and upper limits for the branching ratios of GAMMA are provided.
Journal ArticleDOI
Search for the decay micro+-->e+ gamma.
R. D. Bolton,Judd D. Bowman,Cooper,J. S. Frank,A. L. Hallin,P. Heusi,C. M. Hoffman,Gary E. Hogan,F. G. Mariam,H. S. Matis,R. E. Mischke,D. E. Nagle,L. E. Piilonen,V. D. Sandberg,G. H. Sanders,Urs Sennhauser,R. Werbeck,R. A. Williams,S. L. Wilson,R. Hofstadter,E. B. Hughes,M. W. Ritter,D. Grosnick,S. C. Wright,V. L. Highland,J. McDonough +25 more
TL;DR: This Letter reports a new experimental search for the family-number-nonconserving decay ..mu../sup +/ ..-->.. e/Sup +/..gamma... There is no evidence for the presence of this decay mode.
Journal ArticleDOI
Light-boson emission in the decay of the micro+
T. Goldman,A. L. Hallin,C. M. Hoffman,L. E. Piilonen,D Preston,R. D. Bolton,Cooper,J. S. Frank,P. Heusi,Gary E. Hogan,F. G. Mariam,H. S. Matis,R. E. Mischke,V. D. Sandberg,G. H. Sanders,Urs Sennhauser,R. Werbeck,R. A. Williams,D. Grosnick,S. C. Wright,S. L. Wilson,R. Hofstadter,E. B. Hughes,M. W. Ritter,V. L. Highland,J. McDonough +25 more
Journal ArticleDOI
Unique determination of the form-factor ratio in radiative pion decay.
L. E. Piilonen,R. D. Bolton,M. D. Cooper,J. S. Frank,A. L. Hallin,P. Heusi,Gary E. Hogan,C. M. Hoffman,F. G. Mariam,R. E. Mischke,V. D. Sandberg,R. A. Williams,S. L. Wilson,V. L. Highland,J. McDonough,D. Grosnick,S. C. Wright,M. W. Ritter +17 more
TL;DR: From a maximum-likelihood analysis of the Dalitz-plot distribution of 2364 coincident and random events, a unique value is obtained for ..gamma.., the ratio of the axial-vector to vector weak pion form factors, of 0.12.
Journal ArticleDOI
Search for the muon-number--nonconserving decay. mu -->. e/sup +/ < or approx. =/sup +/e/sup -/
R. D. Bolton,Judd D. Bowman,R. D. Carlini,M. D. Cooper,M. Duong-van,J. S. Frank,A. L. Hallin,P. Heusi,C. M. Hoffman,F. G. Mariam,H. S. Matis,R. E. Mischke,D. E. Nagle,V. D. Sandberg,G. H. Sanders,Urs Sennhauser,R. L. Talaga,R. Werbeck,R. A. Williams,S. L. Wilson,E. B. Hughes,R. Hofstadter,D. Grosnick,S. C. Wright,Gary E. Hogan,V. L. Highland +25 more
TL;DR: In this article, the branching ratio of B/sub mu3e/m3e was investigated and eleven such events were observed, all of which agree in number and spectra with expectations based on standard electroweak theory.