D. Aschman
California Institute of Technology
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Featured researches published by D. Aschman.
IEEE Transactions on Nuclear Science | 1979
G. I. Kirkbride; J. O'Reilly; J. Tompkins; D. Aschman; B. L. Beron; E. D. Bloom; F. Bulos; J. E. Gaiser; G. L. Godfrey; R. Hofstadter; E. B. Hughes; C. M. Kiesling; H. Kolanoski; W. Kollmann; A. Liberman; M. J. Oreglia; R. A. Partridge; C. W. Peck; F. C. Porter; H. F. Sadrozinski; K. Strauch
We report the use of a 500 keV Van de Graaff proton accelerator to produce ¿-rays in the range 4 - 18 MeV via nuclear reactions for the purpose of calibrating a large NaI(Tl) crystal array. Data analysis indicates an energy calibration to ~ 1% over this range.
Particles and Fields-1979: APS/DPF, Montreal | 2008
R. Partridge; C. Peck; F. C. Porter; W. Kollmann; M. Richardson; K. Strauch; K. Wacker; D. Aschman; T. H. Burnett; M. Cavalli-Sforza; D. C. Coyne; H. Sadrozinski; R. Hofstadter; I. Kirkbride; H. Kolanoski; A. Liberman; J. O’Reilly; J. Tompkins; E. D. Bloom; F. Bulos; R. Chestnut; J. Gaiser; G. Godfrey; C. Kiesling; M. J. Oreglia
Evidence for an ηc candicate with a mass of 2980±15 MeV from the ψ′ inclusive γ spectrum is presented. The corresponding region in the J/ψ inclusive γ spectrum is then studied and shown to be consistent with a broad Breit‐Wigner enhancement superimposed upon a smooth background. Results from a detailed study of the two exclusive decay modes ψ′→γγ ψ→γγ e+e− and ψ′→γγ ψ→γγμ+μ− are also given. These consist of measurements of the cascade branching ratios BR(ψ′→γχ→γγψ) for χ(3.55) and χ(3.51) and upper limits on this branching ratio for χ(3.41), χ(3.45), and χ(3.59). Finally, we give branching ratios for the two decays ψ′→ηψ and ψ′→π °ψ.
Physical Review Letters | 1982
C. A. Edwards; F. C. Porter; D.L. Scharre; C. Peck; R. Hofstadter; D.G. Coyne; J. O'Reilly; Mark Oreglia; A. J. Weinstein; R. Lee; R. Horisberger; G. Godfrey; A. Osterheld; Elliott D. Bloom; F. Bulos; R. Partridge; C.B. Newman-Holmes; D. Antreasyan; D. Aschman; Y.F. Gu; I. Kirkbride; William Lockman; M. Richardson; H. Kolanoski; A. Liberman; J. Tompkins; H. Sadrozinski; K. Wacker; W.S. Kollmann; T. H. Burnett
Physical Review Letters | 1982
C. A. Edwards; R. Partridge; C. Peck; F. C. Porter; D. Antreasyan; Y.F. Gu; J. Irion; W. Kollmann; M. Richardson; K. Strauch; K. Wacker; A. J. Weinstein; D. Aschman; T. H. Burnett; M. Cavalli-Sforza; D. C. Coyne; Charles M. Newman; H. Sadrozinski; D. Gelphman; R. Hofstadter; R. Horisberger; I. Kirkbride; H. Kolanoski; K. Koenigsmann; R. Lee; A. Liberman; J. O'Reilly; A. Osterheld; Brad H. Pollock; J. Tompkins
Physical Review Letters | 1982
C. A. Edwards; F. C. Porter; D.L. Scharre; C. Peck; R. Hofstadter; D.G. Coyne; J. O'Reilly; Mark Oreglia; A. J. Weinstein; R. Lee; R. Horisberger; G. Godfrey; A. Osterheld; Elliott D. Bloom; F. Bulos; R. Partridge; C.B. Newman-Holmes; D. Antreasyan; D. Aschman; Y.F. Gu; I. Kirkbride; William Lockman; M. Richardson; H. Kolanoski; A. Liberman; J. Tompkins; H. Sadrozinski; K. Wacker; W.S. Kollmann; T. H. Burnett
Physical Review Letters | 1982
C. A. Edwards; F. C. Porter; D.L. Scharre; C. Peck; R. Hofstadter; D.G. Coyne; J. O'Reilly; M. J. Oreglia; A. J. Weinstein; R. Lee; R. Horisberger; G. Godfrey; A. Osterheld; Elliott D. Bloom; F. Bulos; R. Partridge; C.B. Newman-Holmes; D. Antreasyan; D. Aschman; Y.F. Gu; I. Kirkbride; William Lockman; M. Richardson; H. Kolanoski; A. Liberman; J. Tompkins; H. Sadrozinski; K. Wacker; W.S. Kollmann; T. H. Burnett
Physical Review Letters | 1982
C. A. Edwards; F. C. Porter; D.L. Scharre; C. Peck; R. Hofstadter; D.G. Coyne; J. O'Reilly; M. J. Oreglia; A. J. Weinstein; R. Lee; R. Horisberger; G. Godfrey; A. Osterheld; Elliott D. Bloom; F. Bulos; R. Partridge; C.B. Newman-Holmes; D. Antreasyan; D. Aschman; Y.F. Gu; I. Kirkbride; William Lockman; M. Richardson; H. Kolanoski; A. Liberman; J. Tompkins; H. Sadrozinski; K. Wacker; W.S. Kollmann; T. H. Burnett
Physical Review D | 1986
J. Gaiser; F. C. Porter; C. Peck; R. Hofstadter; D.L. Scharre; J. O'Reilly; R. Lee; A. J. Weinstein; M. J. Oreglia; Y.F. Gu; I. Kirkbride; C. A. Edwards; W.S. Kollmann; H. Sadrozinski; G. Godfrey; D. Gelphman; J. Irion; Elliott D. Bloom; F. Bulos; R. Partridge; D. Antreasyan; D. Aschman; M. Cavalli-Sforza; R. Horisberger; William Lockman; J. Tompkins; H. Kolanoski; A. Liberman; K. Wacker; Kay Konigsmann
Physical Review Letters | 1982
C. A. Edwards; R. Partridge; C. Peck; F. C. Porter; D. Antreasyan; Y.F. Gu; W. Kollmann; M. Richardson; K. Strauch; K. Wacker; A. J. Weinstein; D. Aschman; T. H. Burnett; M. Cavalli-Sforza; D. C. Coyne; Charles M. Newman; H. Sadrozinski; D. Gelphman; R. Hofstadter; R. Horisberger; I. Kirkbride; H. Kolanoski; K. Koenigsmann; R. Lee; A. Liberman; J. O'Reilly; A. Osterheld; Brad H. Pollock; J. Tompkins; E. D. Bloom
Physical Review Letters | 1980
R. Partridge; C. Peck; F. C. Porter; W. D. Kollman; M. Richardson; K. Strauch; K. Wacker; D. Aschman; T. H. Burnett; M. Cavalli-Sforza; D. C. Coyne; H. Sadrozinski; E. D. Bloom; F. Bulos; R. Chestnut; J. Gaiser; G. Godfrey; C. Kiesling; M. J. Oreglia; R. Hofstadter; I. Kirkbride; H. Kolanoski; A. Liberman; J. O'Reilly; J. Tompkins
