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Measurement of the 18Ne(α,p0) 21Na reaction cross section in the burning energy region for x-ray bursts.

Salter, PJ, 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 and Woods, PJ (2012) Measurement of the 18Ne(α,p0) 21Na reaction cross section in the burning energy region for x-ray bursts. Phys Rev Lett, 108 (24).

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Abstract

The 18Ne(α,p) 21Na reaction provides one of the main HCNO-breakout routes into the rp process in x-ray bursts. The 18Ne(α,p0) 21Na reaction cross section has been determined for the first time in the Gamow energy region for peak temperatures T∼2  GK by measuring its time-reversal reaction 21Na(p,α) 18Ne 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 18Ne(α,p) 21Na reaction.

Item Type: Article
Authors :
NameEmailORCID
Salter, PJUNSPECIFIEDUNSPECIFIED
Aliotta, MUNSPECIFIEDUNSPECIFIED
Davinson, TUNSPECIFIEDUNSPECIFIED
Al Falou, HUNSPECIFIEDUNSPECIFIED
Chen, AUNSPECIFIEDUNSPECIFIED
Davids, BUNSPECIFIEDUNSPECIFIED
Fulton, BRUNSPECIFIEDUNSPECIFIED
Galinski, NUNSPECIFIEDUNSPECIFIED
Howell, DUNSPECIFIEDUNSPECIFIED
Lotay, Gg.lotay@surrey.ac.ukUNSPECIFIED
Machule, PUNSPECIFIEDUNSPECIFIED
Murphy, ASUNSPECIFIEDUNSPECIFIED
Ruiz, CUNSPECIFIEDUNSPECIFIED
Sjue, SUNSPECIFIEDUNSPECIFIED
Taggart, MUNSPECIFIEDUNSPECIFIED
Walden, PUNSPECIFIEDUNSPECIFIED
Woods, PJUNSPECIFIEDUNSPECIFIED
Date : 15 June 2012
Identification Number : https://doi.org/10.1103/PhysRevLett.108.242701
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:40
Last Modified : 17 May 2017 15:12
URI: http://epubs.surrey.ac.uk/id/eprint/840043

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