dc.contributor.author | Kiss, G. G. | |
dc.contributor.author | Szücs, T. | |
dc.contributor.author | Rauscher, T. | |
dc.contributor.author | Török, Zs | |
dc.contributor.author | Csedreki, L. | |
dc.contributor.author | Fülöp, Zs | |
dc.contributor.author | Gyürky, Gy | |
dc.contributor.author | Halász, Z. | |
dc.date.accessioned | 2015-05-12T07:50:41Z | |
dc.date.available | 2015-05-12T07:50:41Z | |
dc.date.issued | 2015-05-01 | |
dc.identifier.citation | Kiss , G G , Szücs , T , Rauscher , T , Török , Z , Csedreki , L , Fülöp , Z , Gyürky , G & Halász , Z 2015 , ' Measurement of (α,n) reaction cross sections of erbium isotopes for testing astrophysical rate predictions ' , Journal of Physics G: Nuclear and Particle Physics , vol. 42 , no. 5 , 055103 . https://doi.org/10.1088/0954-3899/42/5/055103 | |
dc.identifier.issn | 0954-3899 | |
dc.identifier.uri | http://hdl.handle.net/2299/15910 | |
dc.description | Date of Acceptance: 30/01/2015 | |
dc.description.abstract | The γ-process in core-collapse and/or type Ia supernova explosions is thought to explain the origin of the majority of the so-called p nuclei (the 35 proton-rich isotopes between Se and Hg). Reaction rates for γ-process reaction network studies have to be predicted using Hauser-Feshbach statistical model calculations. Recent investigations have shown problems in the prediction of α-widths at astrophysical energies which are an essential input for the statistical model. It has an impact on the reliability of abundance predictions in the upper mass range of the p nuclei. With the measurement of the <sup>164,166</sup>Er(α,n)<sup>167,169</sup>Yb reaction cross sections at energies close to the astrophysically relevant energy range we tested the recently suggested low energy modification of the α+nucleus optical potential in a mass region where γ-process calculations exhibit an underproduction of the p nuclei. Using the same optical potential for the α-width which was derived from combined <sup>162</sup>Er(α,n) and <sup>162</sup>Er(α,γ) measurement makes it plausible that a low-energy modification of the optical α+nucleus potential is needed. | en |
dc.format.extent | 10 | |
dc.format.extent | 291699 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of Physics G: Nuclear and Particle Physics | |
dc.subject | activation method | |
dc.subject | astrophysical gammaprocess | |
dc.subject | measured cross section | |
dc.subject | Nuclear and High Energy Physics | |
dc.title | Measurement of (α,n) reaction cross sections of erbium isotopes for testing astrophysical rate predictions | en |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Science & Technology Research Institute | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1088/0954-3899/42/5/055103 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |