A high-resolution study of the C(γ,p) reaction with 49-78.5 MeV tagged photons

S.V. Springham; D. Branford; T. Davinson; A.C. Shotter; J. Yorkston; J.C. McGeorge; J.D. Kellie; S.J. Hall; R. Beck; P. Jennewein; B. Schoch

A high-resolution study of the C(γ,p) reaction with 49-78.5 MeV tagged photons

S.V. Springham, D. Branford, T. Davinson, A.C. Shotter, J. Yorkston, J.C. McGeorge, J.D. Kellie, S.J. Hall, R. Beck, P. Jennewein, B. Schoch

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We present tabulated cross-section measurements for the reaction C(γ, p) leading to resolved, low-lying, excited states of B. The measurements were obtained using tagged photons of 49-78.5 MeV and for mean laboratory proton emission angles from 65° to 115°. The proton excitation energy spectra are dominated by the ground state ( 3 2), 2.13 MeV ( 1 2), 5.02 MeV ( 3 2) and doublet ( 7 2, 1 2) states of B. No evidence is found for the population of the 4.45 MeV ( 5 2) state. Our analysis demonstrates that both the ground-state and excited-state cross-section data scale with momentum mismatch. The data are qualitatively discussed within the context of the existing (e, e'p) data and direct knockout and quasideuteron models. A consistent and quantitative understanding of the data will require more sophisticated models than are currently available.

Original language	English
Pages (from-to)	93-107
Number of pages	15
Journal	Nuclear Physics A
Volume	517
Issue number	1
Publication status	Published - 15 Oct 1990

Cite this

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title = "A high-resolution study of the C(γ,p) reaction with 49-78.5 MeV tagged photons",

abstract = "We present tabulated cross-section measurements for the reaction C(γ, p) leading to resolved, low-lying, excited states of B. The measurements were obtained using tagged photons of 49-78.5 MeV and for mean laboratory proton emission angles from 65° to 115°. The proton excitation energy spectra are dominated by the ground state ( 3 2), 2.13 MeV ( 1 2), 5.02 MeV ( 3 2) and doublet ( 7 2, 1 2) states of B. No evidence is found for the population of the 4.45 MeV ( 5 2) state. Our analysis demonstrates that both the ground-state and excited-state cross-section data scale with momentum mismatch. The data are qualitatively discussed within the context of the existing (e, e'p) data and direct knockout and quasideuteron models. A consistent and quantitative understanding of the data will require more sophisticated models than are currently available.",

author = "S.V. Springham and D. Branford and T. Davinson and A.C. Shotter and J. Yorkston and J.C. McGeorge and J.D. Kellie and S.J. Hall and R. Beck and P. Jennewein and B. Schoch",

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T1 - A high-resolution study of the C(γ,p) reaction with 49-78.5 MeV tagged photons

AU - Springham, S.V.

AU - Branford, D.

AU - Davinson, T.

AU - Shotter, A.C.

AU - Yorkston, J.

AU - McGeorge, J.C.

AU - Kellie, J.D.

AU - Hall, S.J.

AU - Beck, R.

AU - Jennewein, P.

AU - Schoch, B.

PY - 1990/10/15

Y1 - 1990/10/15

N2 - We present tabulated cross-section measurements for the reaction C(γ, p) leading to resolved, low-lying, excited states of B. The measurements were obtained using tagged photons of 49-78.5 MeV and for mean laboratory proton emission angles from 65° to 115°. The proton excitation energy spectra are dominated by the ground state ( 3 2), 2.13 MeV ( 1 2), 5.02 MeV ( 3 2) and doublet ( 7 2, 1 2) states of B. No evidence is found for the population of the 4.45 MeV ( 5 2) state. Our analysis demonstrates that both the ground-state and excited-state cross-section data scale with momentum mismatch. The data are qualitatively discussed within the context of the existing (e, e'p) data and direct knockout and quasideuteron models. A consistent and quantitative understanding of the data will require more sophisticated models than are currently available.

AB - We present tabulated cross-section measurements for the reaction C(γ, p) leading to resolved, low-lying, excited states of B. The measurements were obtained using tagged photons of 49-78.5 MeV and for mean laboratory proton emission angles from 65° to 115°. The proton excitation energy spectra are dominated by the ground state ( 3 2), 2.13 MeV ( 1 2), 5.02 MeV ( 3 2) and doublet ( 7 2, 1 2) states of B. No evidence is found for the population of the 4.45 MeV ( 5 2) state. Our analysis demonstrates that both the ground-state and excited-state cross-section data scale with momentum mismatch. The data are qualitatively discussed within the context of the existing (e, e'p) data and direct knockout and quasideuteron models. A consistent and quantitative understanding of the data will require more sophisticated models than are currently available.

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M3 - Article

AN - SCOPUS:0002330498

SN - 0375-9474

VL - 517

SP - 93

EP - 107

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1

ER -

A high-resolution study of the C(γ,p) reaction with 49-78.5 MeV tagged photons

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