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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 : 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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