P. Varghese
University of Oregon
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Featured researches published by P. Varghese.
Physical Review Letters | 1977
G. S. Blanpied; W.R. Coker; R. P. Liljestrand; L. Ray; G. W. Hoffman; D.G. Madland; C. L. Morris; J. C. Pratt; James E. Spencer; H. A. Thiessen; Norton M. Hintz; G. S. Kyle; M. A. Oothoudt; T. S. Bauer; J.C. Fong; G. Igo; R. J. Ridge; C.A. Whitten; T. Kozlowski; D. K. McDaniels; P. Varghese; P. M. Lang; H. Nann; Kamal K. Seth; C. Glashausser
Differential cross sections for elastic scattering of 0.8-GeV protons from /sup 12/C, /sup 58/Ni, and /sup 208/Pb have been measured. Preliminary analysis of the data in terms of the Kerman-McManus-Thaler formalism with spin-dependent nucleon-nucleon amplitudes shows sensitivity to details of proton and neutron matter distributions.
Physics Letters B | 1978
G. W. Hoffmann; G. S. Blanpied; W. R. Coker; R. P. Liljestrand; L. Ray; James E. Spencer; H. A. Thiessen; Norton M. Hintz; M. A. Oothoudt; T. S. Bauer; G. Igo; G. Pauletta; J. Soukup; C.A. Whitten; H. Nann; Kamal K. Seth; C. Glashausser; D. K. McDaniels; J. R. Tinsley; P. Varghese
Abstract Differential cross section and analyzing power data for elastic scattering of 0.8 GeV polarized protons from 116Sn and 124Sn are analyzed in terms of a spin-dependent Kerman-McManus-Thaler formalism. Neutron matter densities and rms radii are deduced with careful attention to sources of error, and found to be in good agreement with Hartree-Fock predictions.
Physics Letters B | 1979
L. Ray; T. Kozlowski; D.G. Madland; C. L. Morris; J. C. Pratt; James E. Spencer; N. Tanaka; H. A. Thiessen; G. S. Kyle; Norton M. Hintz; M. A. Oothoudt; P. M. Lang; H. Nann; Kamal K. Seth; D. K. McDaniels; P. Varghese; G. S. Blanpied; G. W. Hoffmann; R. P. Liljestrand; J.C. Fong; G. Igo; R. J. Ridge; R. Rolfe; C.A. Whitten
Abstract New differential cross sections for 0.8 GeV proton inelastic excitation of the first 2+ and 4+ states in 58Ni are compared with distorted wave Born approximation and coupled-channels predictions. Multistep processes and multi-phonon mixing are both shown to be important in describing the excitation of the 4+ state.
Nuclear Physics | 1980
T.C. Sharma; L.W. Swenson; K.S. Krane; P. Varghese; D.K. McDaniels; H. A. Thiessen; N. Tanaka; Richard R. Silbar; M.B. Greenfield; C. F. Moore
Abstract A singles measurement of the quasielastic scattering of 255 MeV pions by 27 Al and 208 Pb has been made. The measured values for the ratio R of π + and π − induced cross section, averaged over all measured angles of 2.2 ± 0.2 and 1.5 ± 0.1 for 27 Al and 208 Pb respectively are substantially below the classical impulse approximation value of 11. A semiclassical nucleon charge exchange model is described for singles and coincidence measurements and is compared with the measured proton spectra. The comparison indicates that the singles proton spectra are dominated by events other than the quasielastic process whereas the coincidence data reported earlier and compared with the present calculations support the quasielastic interpretation. A strongly decreasing dependence of R on A for coincidence measurements may be interpreted as supporting the view that recoil nucleon charge exchange plays an important role in the quasielastic knockout process.
Physical Review Letters | 1977
G. S. Blanpied; W.R. Coker; R. P. Liljestrand; L. Ray; G. W. Hoffman; D.G. Madland; C. L. Morris; J. C. Pratt; James E. Spencer; H. A. Thiessen; Norton M. Hintz; G. S. Kyle; M. A. Oothoudt; T. S. Bauer; J.C. Fong; G. Igo; R. J. Ridge; C.A. Whitten; Thomas Kozlowski; D. K. McDaniels; P. Varghese; P. M. Lang; H. Nann; Kamal K. Seth; C. Glashausser
Differential cross sections for elastic scattering of 0.8-GeV protons from /sup 12/C, /sup 58/Ni, and /sup 208/Pb have been measured. Preliminary analysis of the data in terms of the Kerman-McManus-Thaler formalism with spin-dependent nucleon-nucleon amplitudes shows sensitivity to details of proton and neutron matter distributions.
Physical Review Letters | 1977
G. S. Blanpied; W.R. Coker; R. P. Liljestrand; L. Ray; G. W. Hoffman; D.G. Madland; C. L. Morris; J. C. Pratt; James E. Spencer; H. A. Thiessen; Norton M. Hintz; G. S. Kyle; Oothoudt; T. S. Bauer; J.C. Fong; G. Igo; R. J. Ridge; C.A. Whitten; Thomas Kozlowski; D. K. McDaniels; P. Varghese; P. M. Lang; H. Nann; Kamal K. Seth; C. Glashausser
Differential cross sections for elastic scattering of 0.8-GeV protons from /sup 12/C, /sup 58/Ni, and /sup 208/Pb have been measured. Preliminary analysis of the data in terms of the Kerman-McManus-Thaler formalism with spin-dependent nucleon-nucleon amplitudes shows sensitivity to details of proton and neutron matter distributions.
Physical Review Letters | 1978
G. W. Hoffman; G. S. Blanpied; W.R. Coker; R. P. Liljestrand; Norton M. Hintz; M. A. Oothoudt; T. S. Bauer; G. Igo; G. Pauletta; J. Soukup; C.A. Whitten; D.G. Madland; J. C. Pratt; L. Ray; James E. Spencer; H. A. Thiessen; H. Nann; Kamal K. Seth; C. Glashausser; D. K. McDaniels; J. R. Tinsley; P. Varghese
Physical Review Letters | 1978
L. W. Swenson; T.C. Sharma; K. Krane; P. Varghese; D. K. McDaniels; H. A. Thiessen; Noby Tanaka; M. Greenfield; C. F. Moore
Physical Review C | 1979
K. S. Krane; T.C. Sharma; L. W. Swenson; D. K. McDaniels; P. Varghese; B.E. Wood; Richard R. Silbar; H.D. Wohlfahrt; C.A. Goulding
Physical Review Letters | 1978
G. S. Blanpied; W.R. Coker; R. P. Liljestrand; L. Ray; G. W. Hoffman; D.G. Madland; C. L. Morris; J. C. Pratt; James E. Spencer; H. A. Thiessen; Norton M. Hintz; G. S. Kyle; M. A. Oothoudt; T. S. Bauer; J.C. Fong; G. Igo; R. J. Ridge; C.A. Whitten; T. Kozlowski; D. K. McDaniels; P. Varghese; P. M. Lang; H. Nann; Kamal K. Seth; C. Glashausser
