Measurement of the Ne-18(alpha, p(0))Na-21 Reaction Cross Section in the Burning Energy Region for X-Ray Bursts

P. J. C. Salter; M. Aliotta; T. Davinson; H. Al Falou; A. Chen; B. Davids; B. R. Fulton; N. Galinski; D. Howell; G. Lotay; P. Machule; A. StJ Murphy; C. Ruiz; S. Sjue; M. Taggart; P. Walden; P. J. Woods

doi:10.1103/PhysRevLett.108.242701

Measurement of the Ne-18(alpha, p(0))Na-21 Reaction Cross Section in the Burning Energy Region for X-Ray Bursts

P. J. C. Salter, M. Aliotta, T. Davinson, H. Al Falou, A. Chen, B. Davids, B. R. Fulton, N. Galinski, D. Howell, G. Lotay, P. Machule, A. StJ Murphy, C. Ruiz, S. Sjue, M. Taggart, P. Walden, P. J. Woods

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Abstract

The Ne-18(alpha, p(0))Na-21 reaction provides one of the main HCNO-breakout routes into the rp process in x-ray bursts. The Ne-18(alpha, p(0))Na-21 reaction cross section has been determined for the first time in the Gamow energy region for peak temperatures T similar to 2 GK by measuring its time-reversal reaction Na-21(alpha, p(0))Ne-18 in inverse kinematics. The astrophysical rate for ground-state to ground-state transitions was found to be a factor of 2 lower than Hauser-Feshbach theoretical predictions. Our reduced rate will affect the physical conditions under which breakout from the HCNO cycles occurs via the Ne-18(alpha, p(0))Na-21 reaction.

Original language	English
Article number	242701
Pages (from-to)	-
Number of pages	5
Journal	Physical Review Letters
Volume	108
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.108.242701
Publication status	Published - 11 Jun 2012

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Salter, P. J. C., Aliotta, M., Davinson, T., Al Falou, H., Chen, A., Davids, B., Fulton, B. R., Galinski, N., Howell, D., Lotay, G., Machule, P., Murphy, A. S., Ruiz, C., Sjue, S., Taggart, M., Walden, P., & Woods, P. J. (2012). Measurement of the Ne-18(alpha, p(0))Na-21 Reaction Cross Section in the Burning Energy Region for X-Ray Bursts. Physical Review Letters, 108(24), -. Article 242701. https://doi.org/10.1103/PhysRevLett.108.242701

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title = "Measurement of the Ne-18(alpha, p(0))Na-21 Reaction Cross Section in the Burning Energy Region for X-Ray Bursts",

abstract = "The Ne-18(alpha, p(0))Na-21 reaction provides one of the main HCNO-breakout routes into the rp process in x-ray bursts. The Ne-18(alpha, p(0))Na-21 reaction cross section has been determined for the first time in the Gamow energy region for peak temperatures T similar to 2 GK by measuring its time-reversal reaction Na-21(alpha, p(0))Ne-18 in inverse kinematics. The astrophysical rate for ground-state to ground-state transitions was found to be a factor of 2 lower than Hauser-Feshbach theoretical predictions. Our reduced rate will affect the physical conditions under which breakout from the HCNO cycles occurs via the Ne-18(alpha, p(0))Na-21 reaction.",

author = "Salter, {P. J. C.} and M. Aliotta and T. Davinson and {Al Falou}, H. and A. Chen and B. Davids and Fulton, {B. R.} and N. Galinski and D. Howell and G. Lotay and P. Machule and Murphy, {A. StJ} and C. Ruiz and S. Sjue and M. Taggart and P. Walden and Woods, {P. J.}",

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Salter, PJC, Aliotta, M, Davinson, T, Al Falou, H, Chen, A, Davids, B, Fulton, BR, Galinski, N, Howell, D, Lotay, G, Machule, P, Murphy, AS, Ruiz, C, Sjue, S, Taggart, M, Walden, P & Woods, PJ 2012, 'Measurement of the Ne-18(alpha, p(0))Na-21 Reaction Cross Section in the Burning Energy Region for X-Ray Bursts', Physical Review Letters, vol. 108, no. 24, 242701, pp. -. https://doi.org/10.1103/PhysRevLett.108.242701

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AU - Salter, P. J. C.

AU - Aliotta, M.

AU - Davinson, T.

AU - Al Falou, H.

AU - Chen, A.

AU - Davids, B.

AU - Fulton, B. R.

AU - Galinski, N.

AU - Howell, D.

AU - Lotay, G.

AU - Machule, P.

AU - Murphy, A. StJ

AU - Ruiz, C.

AU - Sjue, S.

AU - Taggart, M.

AU - Walden, P.

AU - Woods, P. J.

PY - 2012/6/11

Y1 - 2012/6/11

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AB - The Ne-18(alpha, p(0))Na-21 reaction provides one of the main HCNO-breakout routes into the rp process in x-ray bursts. The Ne-18(alpha, p(0))Na-21 reaction cross section has been determined for the first time in the Gamow energy region for peak temperatures T similar to 2 GK by measuring its time-reversal reaction Na-21(alpha, p(0))Ne-18 in inverse kinematics. The astrophysical rate for ground-state to ground-state transitions was found to be a factor of 2 lower than Hauser-Feshbach theoretical predictions. Our reduced rate will affect the physical conditions under which breakout from the HCNO cycles occurs via the Ne-18(alpha, p(0))Na-21 reaction.

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Measurement of the Ne-18(alpha, p(0))Na-21 Reaction Cross Section in the Burning Energy Region for X-Ray Bursts

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