Universität zu Köln

Foteinou, V., Axiotis, M., Harissopulos, S., Dimitriou, P., Provatas, G., Lagoyannis, A., Becker, H. -W., Rogalla, D., Zilges, A., Schreckling, A. and Endres, A. (2019). Cross section measurements of proton capture reactions on Mo isotopes relevant to the astrophysical p process. Eur. Phys. J. A, 55 (5). NEW YORK: SPRINGER. ISSN 1434-601X

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Abstract

.Cross section measurements of (p,) reactions on the Mo isotopes have been performed at beam energies from 2 to 6.2 MeV that are relevant to the p-process. Partial cross sections and isomeric ratios were also determined for the Mo-92 case. Astrophysical S factors as well as reaction rates were derived from the experimental cross sections. Statistical model calculations were performed using the latest version (1.9) of the statistical model code TALYS and were compared with the new data. An overall good agreement between theory and experiment was found. In addition, the effect of different combinations of the nuclear input parameters entering the stellar reaction-rate calculations was investigated. It was found that, for certain combinations of optical-model potentials, nuclear level densities and -ray strength functions, the nuclear uncertainties propagated through the Hauser-Feshbach calculations are less than a factor of 2 which is well below the average discrepancies of the calculated p-nuclei abundances and the observations.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Foteinou, V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Axiotis, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Harissopulos, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dimitriou, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Provatas, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lagoyannis, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Becker, H. -W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rogalla, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zilges, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schreckling, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Endres, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-148277
DOI:	10.1140/epja/i2019-12738-x
Journal or Publication Title:	Eur. Phys. J. A
Volume:	55
Number:	5
Date:	2019
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1434-601X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NUCLEAR-PHYSICS; STELLAR NUCLEOSYNTHESIS; LEVEL DENSITY; LESS-THAN; FERMI GAS; R-PROCESS; MODEL; STRENGTH; POTENTIALS; SCATTERING Multiple languages Physics, Nuclear; Physics, Particles & Fields Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/14827