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Spectroscopy of Al-23 and P-27 using the (Li-7, He-8) reaction and the implications for Na-22 and Al-26 nucleosynthesis in explosive hydrogen burning- art. no. 025802

Authors

Caggiano, JA Bazin, D Benenson, W Davids, B Ibbotson, R Scheit, H Sherrill, BM Steiner, M Yurkon, J Zeller, AF Blank, B Chartier, M Greene, J Nolen, JA Wuosmaa, AH Bhattacharya, M Garcia, A Wiescher, M

Citation

Ja. Caggiano et al., Spectroscopy of Al-23 and P-27 using the (Li-7, He-8) reaction and the implications for Na-22 and Al-26 nucleosynthesis in explosive hydrogen burning- art. no. 025802, PHYS REV C, 6402(2), 2001, pp. 5802

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW C

ISSN journal

05562813 → ACNP

Volume

6402

Issue

Year of publication

2001

Database

ISI

SICI code

0556-2813(200108)6402:2<5802:SOAAPU>2.0.ZU;2-9

Abstract

The proton-rich nuclei Al-23 and P-27 were studied using the Mg-24(Li-7,He- 8)Al-23 and Si-28(Li-7, He-8) P-27 reactions. respectively. Several energy levels are observed in each nucleus. The mass excess of Al-23 was measured to be 6.773(28) MeV and the mass excess of P-27 was measured to be - 0.670( 41) MeV. The first excited state of Al-23 has been resolved from the ground state for the first time at an excitation energy of E-x=0.550(20) MeV. The first excited state of P-27 has been measured for the first time at an exc itation energy of E-x = 1.199(19) MeV. The astrophysical implications of th ese results for the reaction rates of Mg-22(p, gamma) Al-23 and Si-26(p, ga mma) P-27 for the nucleosynthesis of Na-22 and Al-26 in Ne novae will be di scussed.