J. W. DeWire
Cornell University
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Featured researches published by J. W. DeWire.
Nuclear Instruments and Methods in Physics Research | 1983
D. Andrews; P. Avery; K. Berkelman; R. Cabenda; D. G. Cassel; J. W. DeWire; R. Ehrlich; T. Ferguson; B.G. Gibbard; M. G. D. Gilchriese; B. Gittelman; D. L. Hartill; D. Herrup; M. Herzlinger; J. Kandaswamy; D. L. Kreinick; D. Larson; N. B. Mistry; F. Morrow; E. Nordberg; R. Perchonok; R. Plunkett; K. A. Shinsky; R. H. Siemann; A. Silverman; P. C. Stein; S. Stone; Richard Talman; D. Weber; R. Wilcke
Abstract The construction and performance of a large aperture magnetic detector designed for use at the Cornell Electon Storage Ring is descr bed.
Physics Letters B | 1987
P. Avery; D. Besson; T. J. V. Bowcock; R. T. Giles; J. F. Hassard; K. Kinoshita; F. M. Pipkin; Richard Wilson; J. Wolinski; Di Xiao; Thomas R. Gentile; P. Haas; M. Hempstead; T. Jensen; H. Kagan; R. Kass; S. Behrends; Jan M. Guida; Joan A. Guida; F. Morrow; R. Poling; E. H. Thorndike; P. Tipton; M. S. Alam; N. Katayama; I. J. Kim; C. R. Sun; V. Tanikella; D. Bortoletto; A. Chen
Abstract We have set upper limits for rare exclusive decays of B mesons arising from higher order processes in the standard model of electroweak interactions. Such decays may occur via “penguin diagrams” in B decay. We also set an upper limit on a lepton-number-violating decay mode of the neutral B meson.
Physics Letters B | 1989
P. Avery; D. Besson; L. Garren; J. Yelton; T. Bowcock; K. Kinoshita; F. M. Pipkin; M. Procario; Richard Wilson; J. Wolinski; D. Xiao; P. Baringer; P. Haas; Ha Lam; A. Jawahery; C. H. Park; D. Perticone; R. Poling; R. Fulton; M. Hempstead; T. Jensen; D. R. Johnson; H. Kagan; R. Kass; F. Morrow; J. Whitmore; W.-Y. Chen; J. Dominick; R. L. McIlwain; David Harry Miller
Abstract We have measured upper limits on branching fractions for rare exclusive decays of B mesons arising from one-loop diagrams in the standard model of electroweak interactions. We also obtain an upper limit for the lepton-number-violating decay B 0 → μ ± e ∓ .
Physics Letters B | 1989
M. S. Alam; N. Katayama; I. J. Kim; W. C. Li; X. C. Lou; C. R. Sun; D. Bortoletto; M. Goldberg; N. Horwitz; M. D. Mestayer; G. C. Moneti; V. Sharma; I. P. J. Shipsey; T. Skwarnicki; S. E. Csorna; T. Letson; I. Brock; T. Ferguson; J. P. Alexander; M. Artuso; C. Bebek; K. Berkelman; D. G. Cassel; E. Cheu; D. M. Coffman; G. Crawford; J. W. DeWire; P. S. Drell; R. Ehrlich; R. S. Galik
Abstract Using the CLEO detector, we present a measurement of the mass of the charged charmed strange baryon Ξ + c and its neutral counterpart the Ξ 0 c . The Ξ + c is observed through its decay to Ξ - π + π + , and its mass is measured to be (2467±3±4) MeV. The isospin mass splitting of the Ξ c system is found to be M ( Ξ + c )- M ( Ξ 0 c )=(−5±4±1)MeV.
Physics Letters B | 1987
C. Bebek; K. Berkelman; E. Blucher; D. G. Cassel; T. Copie; R. DeSalvo; J. W. DeWire; R. Ehrlich; R. S. Galik; M. Gilchriese; B. Gittelman; S. W. Gray; A. M. Halling; D. L. Hartill; B. K. Heltsley; S. Holzner; J. Kandaswamy; R. Kowalewski; D. L. Kreinick; Y. Kubota; N. B. Mistry; J. Mueller; R. Namjoshi; E. Nordberg; D. Perticone; D. Peterson; M. Pisharody; K. Read; D. Riley; A. Silverman
The tau lepton lifetime is measured using four different methods with the DELPHI detector. Three measurements using one prong decays are combined, accounting for correlations, resulting in ττ=298 ±7 (stat.)±4 (syst.) fs while the decay length distribution of three prong decays gives ππ=298±13 (stat)±(syst.) fs. The combined result is ττ=298±7 fs. The ratio of the Fermi coupling constant from tau decay relative to that from muon decay is found to be 0.985±0.013, compatible with lepton universality.
Physical Review Letters | 1990
J. P. Alexander; M. Artuso; C. Bebek; K. Berkelman; T. E. Browder; D. G. Cassel; E. Cheu; D. M. Coffman; G. Crawford; J. W. DeWire; P. S. Drell; R. Ehrlich; R. S. Galik; B. Gittelman; S. W. Gray; A. M. Halling; D. L. Hartill; B. K. Heltsley; J. Kandaswamy; N. Katayama; D. L. Kreinick; J. D. Lewis; G. S. Ludwig; N. B. Mistry; J. Mueller; S. Nandi; E. Nordberg; C. Oegrady; D. Peterson; M. Pisharody
Using the CLEO detector at the Cornell Electron Storage Ring (CESR), we have determined the ratio {Gamma}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{ital l}{sup +}{nu})/{Gamma}({ital D}{sub {ital s}}{sup +} {r arrow}{phi}{pi}{sup +})=0.49{plus minus}0.10{sub {minus}0.14}{sup +0.10}. We use this measurement to derive {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +}).
Physics Letters B | 1990
W.-Y. Chen; R. L. McIlwain; D. H. Miller; C. R. Ng; S. F. Schaffner; E. I. Shibata; W. M. Yao; K. Sparks; E. H. Thorndike; C. H. Wang; M. S. Alam; I. J. Kim; W. C. Li; X. C. Lou; C. R. Sun; P. N. Wang; M. I. Zoeller; D. Bortoletto; M. Goldberg; N. Horwitz; V. Jain; M. D. Mestayer; G. C. Moneti; V. Sharma; I. P. J. Shipsey; T. Skwarnicki; M. Thulasidas; S. E. Csorna; T. Letson; J. P. Alexander
Abstract Using the CLEO detector at the Cornell Electron Storage Ring, we have searched for two-photon production of charmonium in four-track final states. We have measured Γ γγ ( η c )=5.9 +2.1 −1.8 ±1.9 keV, and we have obtained 95% CL upper limits of Γ γγ ( X c 0 ) Γ γγ ( X c 2 )
Physics Letters B | 1989
R. Fulton; P. Haas; M. Hempstead; T. Jensen; D. R. Johnson; H. Kagan; R. Kass; F. Morrow; J. Whitmore; P. Baringer; W.-Y. Chen; R. L. McIlwain; D. H. Miller; C. R. Ng; E. I. Shibata; W. M. Yao; M. S. Alam; D. Chen; N. Katayama; I. J. Kim; W. C. Li; X. C. Lou; C. R. Sun; V. Tanikella; D. Bortoletto; M. Goldberg; N. Horwitz; P. Lubrano; M. D. Mestayer; G. C. Moneti
The branching ratio for inclusive ψ production in ψ(1S) decays is measured to be (0.11 ± 0.04 ± 0.02)%.
Physics Letters B | 1989
W.-Y. Chen; R. L. McIlwain; D. H. Miller; C. R. Ng; E. I. Shibata; W. M. Yao; K. Sparks; E. H. Thorndike; M. S. Alam; N. Katayama; I. J. Kim; W. C. Li; X. C. Lou; C. R. Sun; D. Bortoletto; M. Goldberg; N. Horwitz; P. Lubrano; M. D. Mestayer; G. C. Moneti; V. Sharma; I. P. J. Shipsey; T. Skwarnicki; S. E. Csorna; T. Letson; I.C. Brock; T. Ferguson; J. P. Alexander; M. Artuso; C. Bebek
Abstract Using the CLEO detector, we have measured the branching ratios for the exclusive decays of the D s + meson into K ∗0 K + , K 0 K + , and K ∗+ K 0 relative to the decay D s + →φπ + to be close to unity. We have also measured the mass diference between the D s + and D + meson to be 98.5±1.5 MeV/ c 2 .
Physics Letters B | 1971
J. W. DeWire; B. Gittelman; R. Loe; E.C. Loh; D.J. Ritchie; R.A. Lewis
Abstract The differential cross section for eta photoproductions has been measured for incident photon energies of 4 and 8 GeV and momentum tranfers − t = 0.3 to 0.8 (GeV/ c ) 2 .
