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Title: {sup 3}He+{sup 4}He astrophysical factor study using activation method

Abstract

In 1998, [2] pointed out the big difference for the S{sub 34}(0) ('old' experimental data) when experimental results were grouped starting from the main two methods: S{sub 34}(0) = 0.507(16)keVb for the direct capture and S{sub 34}(0) = 0.572(26)keVb for the activation. Its importance for the Standard Solar Model was the reason to ask for new measurements to understand the discrepancy. 'New' results solved this issue by equalizing the above values, but introduced a new situation to clarify: a discrepancy between the S{sub 34}(E) variations for 'old' and 'new' data at higher energies than E{sub CM} 1.0MeV. 'Old' theoretical models, used for extrapolating the S{sub 34}(E) to the stellar energies, couldn't explain this new behavior. New experimental data was required, again, by theorists. We started this project with the main goal to clarify the situation. Here are the results.

Authors:
 [1]
  1. Institute of Nuclear Research (ATOMKI), H-4001 Debrecen, POB.51 (Hungary)
Publication Date:
OSTI Identifier:
22075624
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1491; Journal Issue: 1; Conference: Conference on nuclear structure and dynamics 2012, Opatija (Croatia), 9-13 Jul 2012; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; CAPTURE; ENERGY-LEVEL TRANSITIONS; HELIUM 3; HELIUM 4; MASS NUMBER; SPECTROSCOPIC FACTORS; STAR MODELS; VARIATIONS

Citation Formats

Bordeanu, C. {sup 3}He+{sup 4}He astrophysical factor study using activation method. United States: N. p., 2012. Web. doi:10.1063/1.4764257.
Bordeanu, C. {sup 3}He+{sup 4}He astrophysical factor study using activation method. United States. doi:10.1063/1.4764257.
Bordeanu, C. Sat . "{sup 3}He+{sup 4}He astrophysical factor study using activation method". United States. doi:10.1063/1.4764257.
@article{osti_22075624,
title = {{sup 3}He+{sup 4}He astrophysical factor study using activation method},
author = {Bordeanu, C.},
abstractNote = {In 1998, [2] pointed out the big difference for the S{sub 34}(0) ('old' experimental data) when experimental results were grouped starting from the main two methods: S{sub 34}(0) = 0.507(16)keVb for the direct capture and S{sub 34}(0) = 0.572(26)keVb for the activation. Its importance for the Standard Solar Model was the reason to ask for new measurements to understand the discrepancy. 'New' results solved this issue by equalizing the above values, but introduced a new situation to clarify: a discrepancy between the S{sub 34}(E) variations for 'old' and 'new' data at higher energies than E{sub CM} 1.0MeV. 'Old' theoretical models, used for extrapolating the S{sub 34}(E) to the stellar energies, couldn't explain this new behavior. New experimental data was required, again, by theorists. We started this project with the main goal to clarify the situation. Here are the results.},
doi = {10.1063/1.4764257},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1491,
place = {United States},
year = {2012},
month = {10}
}