CNO cycle: "soft E1" mode of the Ne-17 excitation in the Ne-17+gamma -> O-15+2p reaction
Paper in proceeding, 2016
The O-15(2p, gamma) Ne-17 reaction is studied using the time-reversed reaction of the Ne-17 E1 Coulomb dissociation on lead target in the context of nuclear astrophysics. Looking for the relation between the data on the Coulomb excitation and the astrophysical 2p-capture rate, one faces problem to extract the Coulomb E1 strength function from the measured Coulex cross section. We use a number of phenomenological approaches to estimate influence of such processes as Coulomb-nuclear interference, populations of states with different J(pi), etc. We calculate the Ne-17+ 2p astrophysical capture rate and compare the results with different calculations.
Author
Y. L. Parfenova
Lomonosov Moscow State University
Joint Institute for Nuclear Research, Dubna
L. V. Grigorenko
GSI Helmholtz Centre for Heavy Ion Research GmbH
Joint Institute for Nuclear Research, Dubna
RRC KI
I. A. Egorova
Joint Institute for Nuclear Research, Dubna
N. B. Shulgina
RRC KI
Mikhail Zhukov
Chalmers, Physics
Journal of Physics: Conference Series
17426588 (ISSN) 17426596 (eISSN)
Vol. 665 1 012047Subject Categories (SSIF 2011)
Physical Sciences
DOI
10.1088/1742-6596/665/1/012047