Experimental cross section of Sm-144(alpha, gamma)Gd-148 and implications for the p-process

E. Somorjai; Zs. Fulop; A.Z. Kiss; C.E. Rolfs; H.P. Trautvetter; U. Greife; M. Junker; S. Goriely; M. Arnould; M. Rayet; T. Rauscher; H. Oberhummer

Experimental cross section of Sm-144(alpha, gamma)Gd-148 and implications for the p-process

E. Somorjai, Zs. Fulop, A.Z. Kiss, C.E. Rolfs, H.P. Trautvetter, U. Greife, M. Junker, S. Goriely, M. Arnould, M. Rayet, T. Rauscher, H. Oberhummer

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Abstract

The cross section of the Sm-144(alpha, gamma) Gd-148 reaction has been measured at bombarding energies in the 10.5-13.4 MeV range using an activation method based on the off-line alpha-activity measurement of the Gd-148 residual nucleus. The long measuring time of the alpha-decay has required the use of etched track detectors. The resulting cross sections and astrophysical S-factors are compared to new statistical model calculations. The measured data at low energies reflect the strong energy dependence of the optical potential which is found to affect significantly our predictions of the alpha-capture rate.

Original language	English
Pages (from-to)	1112-1116
Number of pages	5
Journal	Astronomy & Astrophysics
Volume	333
Issue number	3
Publication status	Published - 20 May 1998

Keywords

ALPHA-PARTICLES
supernovae : general
solar system : general
ENERGIES
SUPERNOVAE
nuclear reactions, nucleosynthesis, abundances

Cite this

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title = "Experimental cross section of Sm-144(alpha, gamma)Gd-148 and implications for the p-process",

abstract = "The cross section of the Sm-144(alpha, gamma) Gd-148 reaction has been measured at bombarding energies in the 10.5-13.4 MeV range using an activation method based on the off-line alpha-activity measurement of the Gd-148 residual nucleus. The long measuring time of the alpha-decay has required the use of etched track detectors. The resulting cross sections and astrophysical S-factors are compared to new statistical model calculations. The measured data at low energies reflect the strong energy dependence of the optical potential which is found to affect significantly our predictions of the alpha-capture rate.",

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author = "E. Somorjai and Zs. Fulop and A.Z. Kiss and C.E. Rolfs and H.P. Trautvetter and U. Greife and M. Junker and S. Goriely and M. Arnould and M. Rayet and T. Rauscher and H. Oberhummer",

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month = may,

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language = "English",

volume = "333",

pages = "1112--1116",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

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TY - JOUR

T1 - Experimental cross section of Sm-144(alpha, gamma)Gd-148 and implications for the p-process

AU - Somorjai, E.

AU - Fulop, Zs.

AU - Kiss, A.Z.

AU - Rolfs, C.E.

AU - Trautvetter, H.P.

AU - Greife, U.

AU - Junker, M.

AU - Goriely, S.

AU - Arnould, M.

AU - Rayet, M.

AU - Rauscher, T.

AU - Oberhummer, H.

PY - 1998/5/20

Y1 - 1998/5/20

N2 - The cross section of the Sm-144(alpha, gamma) Gd-148 reaction has been measured at bombarding energies in the 10.5-13.4 MeV range using an activation method based on the off-line alpha-activity measurement of the Gd-148 residual nucleus. The long measuring time of the alpha-decay has required the use of etched track detectors. The resulting cross sections and astrophysical S-factors are compared to new statistical model calculations. The measured data at low energies reflect the strong energy dependence of the optical potential which is found to affect significantly our predictions of the alpha-capture rate.

AB - The cross section of the Sm-144(alpha, gamma) Gd-148 reaction has been measured at bombarding energies in the 10.5-13.4 MeV range using an activation method based on the off-line alpha-activity measurement of the Gd-148 residual nucleus. The long measuring time of the alpha-decay has required the use of etched track detectors. The resulting cross sections and astrophysical S-factors are compared to new statistical model calculations. The measured data at low energies reflect the strong energy dependence of the optical potential which is found to affect significantly our predictions of the alpha-capture rate.

KW - ALPHA-PARTICLES

KW - supernovae : general

KW - solar system : general

KW - ENERGIES

KW - SUPERNOVAE

KW - nuclear reactions, nucleosynthesis, abundances

M3 - Article

SN - 0004-6361

VL - 333

SP - 1112

EP - 1116

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

IS - 3

ER -

Experimental cross section of Sm-144(alpha, gamma)Gd-148 and implications for the p-process

Abstract

Keywords

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