R. E. Pywell | Researchain

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Physical Review C | 2008

Near threshold ({gamma},{pi}{sup 0}) reactions for {sup 4}He and {sup 12}C

M. G. Barnett; R. Igarashi; R. E. Pywell; J.C. Bergstrom

The total cross section and angular distributions for the reaction {sup 4}He({gamma},{pi}{sup 0}) from a cryogenic liquid helium target have been measured within 25 MeV of threshold using tagged photons and a large acceptance {pi}{sup 0} spectrometer at the Saskatchewan Accelerator Laboratory. The reduced isovector amplitude p{sub 3}{sup (+)} has been determined from the total cross-section measurement using a distorted-wave impulse approximation analysis. Refinements from earlier analytical methods, specifically an improved background event rejection scheme and a corrective tagged photon energy calibration analysis, have also yielded an improved estimate on the p{sub 3}{sup (+)} amplitude for the {sup 12}C({gamma},{pi}{sup 0}) reaction explored previously.

Physical Review C | 1987

Absolute photoneutron cross sections for Zr, I, Pr, Au, and Pb

B. L. Berman; R. E. Pywell; S. S. Dietrich; M. N. Thompson; K. G. McNeill; J. W. Jury

Physical Review Letters | 2000

Quasifree compton scattering from the deuteron and nucleon polarizabilities

D. L. Hornidge; B. J. Warkentin; R. Igarashi; J.C. Bergstrom; Emil Hallin; N. R. Kolb; R. E. Pywell; D. M. Skopik; J.M. Vogt; G. Feldman

Physical Review C | 1993

Measurement of the reaction 3He( gamma,pp)n and its relation to three-body forces.

Sarty Aj; Doss Kg; G. Feldman; Emil Hallin; R. E. Pywell; G. A. Retzlaff; D. M. Skopik; Weller Hr; W. Dodge; J. W. Lightbody; O'Connell Js; C.C. Chang

Physical Review C | 1983

Photoneutron cross sections for the silicon isotopes

R. E. Pywell; B. L. Berman; J. W. Jury; J. G. Woodworth; K. G. McNeill; M. N. Thompson

Physical Review C | 2001

High resolution measurement of the16O(γ,pn)14N0,1,2,…reaction

K. Garrow; F. Adimi; N. R. Kolb; J. Lu; R. E. Pywell; D. M. Skopik; J.M. Vogt; J. W. Jury; A. Kuzin; M. N. Thompson; Jan Ryckebusch

Physical Review C | 2008

Near threshold(γ,π0)reactions forHe4andC12

M. G. Barnett; R. Igarashi; R. E. Pywell; J.C. Bergstrom

Physical Review C | 2001

Nuclear Compton scattering from12Cand bound-nucleon polarizabilities

B. J. Warkentin; D. Hornidge; R. Igarashi; J.C. Bergstrom; Emil Hallin; N. R. Kolb; R. E. Pywell; D. M. Skopik; J.M. Vogt; Gary J. Feldman

Physical Review C | 1985

Photoneutron cross sections for /sup 14/C

R. E. Pywell; B. L. Berman; J. G. Woodworth; J. W. Jury; K. G. McNeill; M. N. Thompson

Physical Review C | 1996

Compton scattering, meson exchange, and the polarizabilities of bound nucleons

G. Feldman; Mellendorf Ke; R. A. Eisenstein; Federspiel Fj; G. Garino; R. Igarashi; N. R. Kolb; Lucas Ma; B. E. MacGibbon; W. K. Mize; Alan M. Nathan; R. E. Pywell; Wells Dp

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