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Title: The first science result with the JENSA gas-jet target: Confirmation and study of a strong subthreshold F 18 ( p , α ) O 15 resonance

Abstract

The astrophysical 18F(p,α)15O rate determines, in large part, the extent to which the observable radioisotope 18F is produced in novae. This rate, however, has been extremely uncertain owing to the unknown properties of a strong subthreshold resonance and its possible interference with higher-lying resonances. In addition, the new Jet Experiments in Nuclear Structure and Astrophysics (JENSA) gas-jet target has been used for the first time to determine the spin of this important resonance and significantly reduce uncertainties in the 18F(p,α)15O rate.

Authors:
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Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1242858
Alternate Identifier(s):
OSTI ID: 1341546
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 751 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTRONOMY AND ASTROPHYSICS; Novae; Nucleosynthesis; Nuclear; Reactions

Citation Formats

Bardayan, D. W., Chipps, K. A., Ahn, S., Blackmon, J. C., deBoer, R. J., Greife, U., Jones, K. L., Kontos, A., Kozub, R. L., Linhardt, L., Manning, B., Matoš, M., O'Malley, P. D., Ota, S., Pain, S. D., Peters, W. A., Pittman, S. T., Sachs, A., Schmitt, K. T., Smith, M. S., and Thompson, P. The first science result with the JENSA gas-jet target: Confirmation and study of a strong subthreshold F 18 ( p , α ) O 15 resonance. Netherlands: N. p., 2015. Web. doi:10.1016/j.physletb.2015.10.073.
Bardayan, D. W., Chipps, K. A., Ahn, S., Blackmon, J. C., deBoer, R. J., Greife, U., Jones, K. L., Kontos, A., Kozub, R. L., Linhardt, L., Manning, B., Matoš, M., O'Malley, P. D., Ota, S., Pain, S. D., Peters, W. A., Pittman, S. T., Sachs, A., Schmitt, K. T., Smith, M. S., & Thompson, P. The first science result with the JENSA gas-jet target: Confirmation and study of a strong subthreshold F 18 ( p , α ) O 15 resonance. Netherlands. https://doi.org/10.1016/j.physletb.2015.10.073
Bardayan, D. W., Chipps, K. A., Ahn, S., Blackmon, J. C., deBoer, R. J., Greife, U., Jones, K. L., Kontos, A., Kozub, R. L., Linhardt, L., Manning, B., Matoš, M., O'Malley, P. D., Ota, S., Pain, S. D., Peters, W. A., Pittman, S. T., Sachs, A., Schmitt, K. T., Smith, M. S., and Thompson, P. 2015. "The first science result with the JENSA gas-jet target: Confirmation and study of a strong subthreshold F 18 ( p , α ) O 15 resonance". Netherlands. https://doi.org/10.1016/j.physletb.2015.10.073.
@article{osti_1242858,
title = {The first science result with the JENSA gas-jet target: Confirmation and study of a strong subthreshold F 18 ( p , α ) O 15 resonance},
author = {Bardayan, D. W. and Chipps, K. A. and Ahn, S. and Blackmon, J. C. and deBoer, R. J. and Greife, U. and Jones, K. L. and Kontos, A. and Kozub, R. L. and Linhardt, L. and Manning, B. and Matoš, M. and O'Malley, P. D. and Ota, S. and Pain, S. D. and Peters, W. A. and Pittman, S. T. and Sachs, A. and Schmitt, K. T. and Smith, M. S. and Thompson, P.},
abstractNote = {The astrophysical 18F(p,α)15O rate determines, in large part, the extent to which the observable radioisotope 18F is produced in novae. This rate, however, has been extremely uncertain owing to the unknown properties of a strong subthreshold resonance and its possible interference with higher-lying resonances. In addition, the new Jet Experiments in Nuclear Structure and Astrophysics (JENSA) gas-jet target has been used for the first time to determine the spin of this important resonance and significantly reduce uncertainties in the 18F(p,α)15O rate.},
doi = {10.1016/j.physletb.2015.10.073},
url = {https://www.osti.gov/biblio/1242858}, journal = {Physics Letters B},
issn = {0370-2693},
number = C,
volume = 751,
place = {Netherlands},
year = {Tue Dec 01 00:00:00 EST 2015},
month = {Tue Dec 01 00:00:00 EST 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at https://doi.org/10.1016/j.physletb.2015.10.073

Citation Metrics:
Cited by: 18 works
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Figures / Tables:

Fig. 1 Fig. 1: The top panel shows the observed deuteron energy spectrum at 29° while the bottom panel shows the expected energies for the population of known levels in the 20Ne(p, d)19Ne reaction at the same angle and a bombarding energy of 30 MeV. Peaks labeled with stars were used formore » energy calibration.« less

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.