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Alpha-unbound Levels In Ar-34 From Ar-36(p,t)ar-34 Reaction Measurements And Implications For The Astrophysical S-30(alpha, P)cl-33 Reaction Rate

Title: Alpha-unbound Levels In Ar-34 From Ar-36(p,t)ar-34 Reaction Measurements And Implications For The Astrophysical S-30(alpha, P)cl-33 Reaction Rate.
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Name(s): Long, A. M., author
Adachi, T., author
Beard, M., author
Berg, G. P. A., author
Couder, M., author
deBoer, R. J., author
Dozono, M., author
Gorres, J., author
Fujita, H., author
Fujita, Y., author
Hatanaka, K., author
Ishikawa, D., author
Kubo, T., author
Matsubara, H., author
Namiki, Y., author
O'Brien, S., author
Ohkuma, Y., author
Okamura, H., author
Ong, H. J., author
Patel, D., author
Sakemi, Y., author
Shimbara, Y., author
Suzuki, S., author
Talwar, R., author
Tamii, A., author
Volya, A., author
Wakasa, T., author
Watanabe, R., author
Wiescher, M., author
Yamada, R., author
Zenihiro, J., author
Type of Resource: text
Genre: Journal Article
Text
Journal Article
Date Issued: 2018-05-22
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The S-30(alpha,p)Cl-33 reaction has been identified in several type-1 x-ray burst (XRB) sensitivity studies as a significant reaction within the alpha p process, possibly influencing not only the abundances of burst ashes but also the bolometric shape of double-peaked light curves coming from certain XRB systems. Given the dearth of experimental data on the(30)S(alpha,p)Cl-33 reaction at burst temperatures, we have performed high energy-resolution forward-angle Ar-36(p,t)Ar-34 measurements in order to identify levels in( 34)Ar that could appear as resonances in the S-30(alpha,p)Cl-33 reaction. Energies of levels identified in this work, along with model-based assumptions for spin assignments and spectroscopic factors, were then used to determine a rate for the S-30(alpha,p)Cl-33 reaction based on a narrow-resonance formalism. The rates determined in this work are then compared with two standard Hauser-Feshbach model predictions over a range of XRB temperatures.
Identifier: FSU_libsubv1_wos_000433031700004 (IID), 10.1103/PhysRevC.97.054613 (DOI)
Keywords: particle spectroscopic strengths, rp-process, systematics, x-ray-bursts, beam line, grand-raiden, magnetic spectrometer, neutron-stars, sd-shell, shell nuclei
Publication Note: The publisher’s version of record is available at https://doi.org/10.1103/PhysRevC.97.054613
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000433031700004
Owner Institution: FSU
Is Part Of: Physical Review C.
2469-9985
Issue: iss. 5, vol. 97

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Long, A. M., Adachi, T., Beard, M., Berg, G. P. A., Couder, M., DeBoer, R. J., … Zenihiro, J. (2018). Alpha-unbound Levels In Ar-34 From Ar-36(p,t)ar-34 Reaction Measurements And Implications For The Astrophysical S-30(alpha, P)cl-33 Reaction Rate. Physical Review C. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000433031700004