High-precision (p,t) reaction measurement to determine Ne18(α,p)Na21 reaction rates

A. Matic, A. M. Van Der Berg, M. N. Harakeh, H. J. Wörtche, G. P.A. Berg, M. Couder, J. L. Fisker, J. Görres, P. Leblanc, S. O'Brien, M. Wiescher, Kunihiro Fujita, K. Hatanaka, Y. Sakemi, Y. Shimizu, Y. Tameshige, A. Tamii, M. Yosoi, T. Adachi, Y. Fujita & 6 others Y. Shimbara, H. Fujita, Tomotsugu Wakasa, P. O. Hess, B. A. Brown, H. Schatz

Research output: Contribution to journalArticle

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Abstract

x-ray bursts are identified as thermonuclear explosions in the outer atmosphere of accreting neutron stars. The thermonuclear runaway is fueled by the αp process that describes a sequence of (α,p) reactions triggered by the Ne18(α,p)Na21 breakout reaction from the hot CNO cycles. We studied the level structure of the compound nucleus Mg22 by measuring the Mg24(p,t)Mg22 reaction at the Grand Raiden spectrometer at Research Center for Nuclear Physics, Osaka. A large number of α-unbound states was identified and precise excitation energies were determined. Based on shell model and α-cluster model calculations we predict the level parameters for determining the stellar reaction rate of Ne18(α,p)Na21 for a wide temperature range. x-ray burst simulations have been performed to study the impact of the reaction on the x-ray burst luminosity.

Original languageEnglish
Article number055804
JournalPhysical Review C - Nuclear Physics
Volume80
Issue number5
DOIs
Publication statusPublished - Nov 16 2009

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reaction kinetics
bursts
thermonuclear explosions
x rays
nuclear physics
neutron stars
luminosity
spectrometers
atmospheres
cycles
nuclei
excitation
simulation
temperature
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Matic, A., Van Der Berg, A. M., Harakeh, M. N., Wörtche, H. J., Berg, G. P. A., Couder, M., ... Schatz, H. (2009). High-precision (p,t) reaction measurement to determine Ne18(α,p)Na21 reaction rates. Physical Review C - Nuclear Physics, 80(5), [055804]. https://doi.org/10.1103/PhysRevC.80.055804

High-precision (p,t) reaction measurement to determine Ne18(α,p)Na21 reaction rates. / Matic, A.; Van Der Berg, A. M.; Harakeh, M. N.; Wörtche, H. J.; Berg, G. P.A.; Couder, M.; Fisker, J. L.; Görres, J.; Leblanc, P.; O'Brien, S.; Wiescher, M.; Fujita, Kunihiro; Hatanaka, K.; Sakemi, Y.; Shimizu, Y.; Tameshige, Y.; Tamii, A.; Yosoi, M.; Adachi, T.; Fujita, Y.; Shimbara, Y.; Fujita, H.; Wakasa, Tomotsugu; Hess, P. O.; Brown, B. A.; Schatz, H.

In: Physical Review C - Nuclear Physics, Vol. 80, No. 5, 055804, 16.11.2009.

Research output: Contribution to journalArticle

Matic, A, Van Der Berg, AM, Harakeh, MN, Wörtche, HJ, Berg, GPA, Couder, M, Fisker, JL, Görres, J, Leblanc, P, O'Brien, S, Wiescher, M, Fujita, K, Hatanaka, K, Sakemi, Y, Shimizu, Y, Tameshige, Y, Tamii, A, Yosoi, M, Adachi, T, Fujita, Y, Shimbara, Y, Fujita, H, Wakasa, T, Hess, PO, Brown, BA & Schatz, H 2009, 'High-precision (p,t) reaction measurement to determine Ne18(α,p)Na21 reaction rates', Physical Review C - Nuclear Physics, vol. 80, no. 5, 055804. https://doi.org/10.1103/PhysRevC.80.055804
Matic A, Van Der Berg AM, Harakeh MN, Wörtche HJ, Berg GPA, Couder M et al. High-precision (p,t) reaction measurement to determine Ne18(α,p)Na21 reaction rates. Physical Review C - Nuclear Physics. 2009 Nov 16;80(5). 055804. https://doi.org/10.1103/PhysRevC.80.055804
Matic, A. ; Van Der Berg, A. M. ; Harakeh, M. N. ; Wörtche, H. J. ; Berg, G. P.A. ; Couder, M. ; Fisker, J. L. ; Görres, J. ; Leblanc, P. ; O'Brien, S. ; Wiescher, M. ; Fujita, Kunihiro ; Hatanaka, K. ; Sakemi, Y. ; Shimizu, Y. ; Tameshige, Y. ; Tamii, A. ; Yosoi, M. ; Adachi, T. ; Fujita, Y. ; Shimbara, Y. ; Fujita, H. ; Wakasa, Tomotsugu ; Hess, P. O. ; Brown, B. A. ; Schatz, H. / High-precision (p,t) reaction measurement to determine Ne18(α,p)Na21 reaction rates. In: Physical Review C - Nuclear Physics. 2009 ; Vol. 80, No. 5.
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AU - Van Der Berg, A. M.

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AU - Berg, G. P.A.

AU - Couder, M.

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AU - Tameshige, Y.

AU - Tamii, A.

AU - Yosoi, M.

AU - Adachi, T.

AU - Fujita, Y.

AU - Shimbara, Y.

AU - Fujita, H.

AU - Wakasa, Tomotsugu

AU - Hess, P. O.

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AU - Schatz, H.

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