Reaction Ni58(+,pp) at T+=160 MeV

W. J. Burger; E. Beise; S. Gilad; R. P. Redwine; P. G. Roos; N. S. Chant; H. Breuer; G. Ciangaru; J. D. Silk; G. S. Blanpied; B. M. Preedom; B. G. Ritchie; M. Blecher; K. Gotow; D. M. Lee; H. Ziock

doi:10.1103/PhysRevC.41.2215

Reaction Ni58(+,pp) at T+=160 MeV

W. J. Burger, E. Beise, S. Gilad, R. P. Redwine, P. G. Roos, N. S. Chant, H. Breuer, G. Ciangaru, J. D. Silk, G. S. Blanpied, B. M. Preedom, B. G. Ritchie, M. Blecher, K. Gotow, D. M. Lee, H. Ziock

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Abstract

The reaction Ni58(+,pp) was studied with good energy resolution for an incident pion energy of 160 MeV. The angular correlation of the outgoing protons was measured for lab=30°, 75°, and 130°. From these angular correlations the contribution from direct two-nucleon absorption was extracted. A Monte Carlo calculation modeling the absorption process in terms of initial-state scattering of the pion before absorption, two-nucleon absorption, and final-state scattering of the outgoing nucleons is compared to the data. We conclude that within this framework the two-nucleon mechanism can account for less than half of the total absorption cross section in Ni58. We report results for the low-energy coincidence proton spectra (down to 5 MeV) which suggest that most of these protons come from evaporation. Angular correlation data for the reaction Ni58(-,pp) are also presented.

Original language	English (US)
Pages (from-to)	2215-2228
Number of pages	14
Journal	Physical Review C
Volume	41
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.41.2215
State	Published - 1990
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.41.2215

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@article{0337d4058a1e406da67d954d57b6b760,

title = "Reaction Ni58(+,pp) at T+=160 MeV",

abstract = "The reaction Ni58(+,pp) was studied with good energy resolution for an incident pion energy of 160 MeV. The angular correlation of the outgoing protons was measured for lab=30°, 75°, and 130°. From these angular correlations the contribution from direct two-nucleon absorption was extracted. A Monte Carlo calculation modeling the absorption process in terms of initial-state scattering of the pion before absorption, two-nucleon absorption, and final-state scattering of the outgoing nucleons is compared to the data. We conclude that within this framework the two-nucleon mechanism can account for less than half of the total absorption cross section in Ni58. We report results for the low-energy coincidence proton spectra (down to 5 MeV) which suggest that most of these protons come from evaporation. Angular correlation data for the reaction Ni58(-,pp) are also presented.",

author = "Burger, {W. J.} and E. Beise and S. Gilad and Redwine, {R. P.} and Roos, {P. G.} and Chant, {N. S.} and H. Breuer and G. Ciangaru and Silk, {J. D.} and Blanpied, {G. S.} and Preedom, {B. M.} and Ritchie, {B. G.} and M. Blecher and K. Gotow and Lee, {D. M.} and H. Ziock",

year = "1990",

doi = "10.1103/PhysRevC.41.2215",

language = "English (US)",

volume = "41",

pages = "2215--2228",

journal = "Physical Review C",

issn = "0556-2813",

publisher = "American Physical Society",

number = "5",

}

TY - JOUR

T1 - Reaction Ni58(+,pp) at T+=160 MeV

AU - Burger, W. J.

AU - Beise, E.

AU - Gilad, S.

AU - Redwine, R. P.

AU - Roos, P. G.

AU - Chant, N. S.

AU - Breuer, H.

AU - Ciangaru, G.

AU - Silk, J. D.

AU - Blanpied, G. S.

AU - Preedom, B. M.

AU - Ritchie, B. G.

AU - Blecher, M.

AU - Gotow, K.

AU - Lee, D. M.

AU - Ziock, H.

PY - 1990

Y1 - 1990

N2 - The reaction Ni58(+,pp) was studied with good energy resolution for an incident pion energy of 160 MeV. The angular correlation of the outgoing protons was measured for lab=30°, 75°, and 130°. From these angular correlations the contribution from direct two-nucleon absorption was extracted. A Monte Carlo calculation modeling the absorption process in terms of initial-state scattering of the pion before absorption, two-nucleon absorption, and final-state scattering of the outgoing nucleons is compared to the data. We conclude that within this framework the two-nucleon mechanism can account for less than half of the total absorption cross section in Ni58. We report results for the low-energy coincidence proton spectra (down to 5 MeV) which suggest that most of these protons come from evaporation. Angular correlation data for the reaction Ni58(-,pp) are also presented.

AB - The reaction Ni58(+,pp) was studied with good energy resolution for an incident pion energy of 160 MeV. The angular correlation of the outgoing protons was measured for lab=30°, 75°, and 130°. From these angular correlations the contribution from direct two-nucleon absorption was extracted. A Monte Carlo calculation modeling the absorption process in terms of initial-state scattering of the pion before absorption, two-nucleon absorption, and final-state scattering of the outgoing nucleons is compared to the data. We conclude that within this framework the two-nucleon mechanism can account for less than half of the total absorption cross section in Ni58. We report results for the low-energy coincidence proton spectra (down to 5 MeV) which suggest that most of these protons come from evaporation. Angular correlation data for the reaction Ni58(-,pp) are also presented.

UR - http://www.scopus.com/inward/record.url?scp=0000648528&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000648528&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.41.2215

DO - 10.1103/PhysRevC.41.2215

M3 - Article

AN - SCOPUS:0000648528

SN - 0556-2813

VL - 41

SP - 2215

EP - 2228

JO - Physical Review C

JF - Physical Review C

IS - 5

ER -

Reaction Ni58(+,pp) at T+=160 MeV

Abstract

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