Uncertainties in direct neutron capture calculations due to nuclear structure models

T. Rauscher; K.L. Kratz; H. Oberhummer; J. Dobaczewski; P. Moller; M. Sharma

Uncertainties in direct neutron capture calculations due to nuclear structure models

T. Rauscher, K.L. Kratz, H. Oberhummer, J. Dobaczewski, P. Moller, M. Sharma

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Abstract

The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. For spherical nuclei close to the dripline the statistical model (Hauser-Feshbach) approach is not applicable and direct contributions may dominate the cross sections. For neutron-rich, even-even Sn targets, we compare the resulting neutron capture cross sections when consistently taking the input for the direct capture calculations from three different microscopic models. The results underline the sensitivity of cross sections calculated in the direct model to nuclear structure models which can lead to high uncertainties when lacking experimental information

Original language	English
Pages (from-to)	C327-C330
Number of pages	4
Journal	Nuclear Physics A
Volume	621
Issue number	1-2
Publication status	Published - 4 Aug 1997
Event	4th International Conference on Nuclei in the Cosmos - NOTRE DAME, India Duration: 20 Jun 1996 → 27 Jun 1996

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PARTICLE

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title = "Uncertainties in direct neutron capture calculations due to nuclear structure models",

abstract = "The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. For spherical nuclei close to the dripline the statistical model (Hauser-Feshbach) approach is not applicable and direct contributions may dominate the cross sections. For neutron-rich, even-even Sn targets, we compare the resulting neutron capture cross sections when consistently taking the input for the direct capture calculations from three different microscopic models. The results underline the sensitivity of cross sections calculated in the direct model to nuclear structure models which can lead to high uncertainties when lacking experimental information",

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T1 - Uncertainties in direct neutron capture calculations due to nuclear structure models

AU - Rauscher, T.

AU - Kratz, K.L.

AU - Oberhummer, H.

AU - Dobaczewski, J.

AU - Moller, P.

AU - Sharma, M.

PY - 1997/8/4

Y1 - 1997/8/4

N2 - The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. For spherical nuclei close to the dripline the statistical model (Hauser-Feshbach) approach is not applicable and direct contributions may dominate the cross sections. For neutron-rich, even-even Sn targets, we compare the resulting neutron capture cross sections when consistently taking the input for the direct capture calculations from three different microscopic models. The results underline the sensitivity of cross sections calculated in the direct model to nuclear structure models which can lead to high uncertainties when lacking experimental information

AB - The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. For spherical nuclei close to the dripline the statistical model (Hauser-Feshbach) approach is not applicable and direct contributions may dominate the cross sections. For neutron-rich, even-even Sn targets, we compare the resulting neutron capture cross sections when consistently taking the input for the direct capture calculations from three different microscopic models. The results underline the sensitivity of cross sections calculated in the direct model to nuclear structure models which can lead to high uncertainties when lacking experimental information

KW - PARTICLE

M3 - Article

SN - 0375-9474

VL - 621

SP - C327-C330

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-2

T2 - 4th International Conference on Nuclei in the Cosmos

Y2 - 20 June 1996 through 27 June 1996

ER -

Uncertainties in direct neutron capture calculations due to nuclear structure models

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