DETERMINATION OF THE N-13(P,GAMMA)O-14 REACTION-RATE THROUGH THE COULOMB BREAK-UP OF A O-14 RADIOACTIVE BEAM

被引：70

作者：

KIENER, J

LEFEBVRE, A

AGUER, P

BACRI, CO

BIMBOT, R

BOGAERT, G

BORDERIE, B

CLAPIER, F

COC, A

DISDIER, D

FORTIER, S

GRUNBERG, C

KRAUS, L

LINCK, I

PASQUIER, G

RIVET, MF

STLAURENT, F

STEPHAN, C

TASSANGOT, L

THIBAUD, JP

机构：

[1] CSNSM,CNRS,IN2P3,BATIMENT 104-108,F-91405 ORSAY,FRANCE

[2] IPN,CNRS,IN2P3,F-91406 ORSAY,FRANCE

[3] UNIV LOUIS PASTEUR,CRN,CNRS,IN2P3,F-67037 STRASBOURG,FRANCE

[4] GANIL,F-14021 CAEN,FRANCE

来源：

NUCLEAR PHYSICS A | 1993年 / 552卷 / 01期

关键词：

PB-208(O-14; PN-13); E = 70 MEV NUCLEON; MEASURED PROJECTILE-BREAKUP REACTION-SIGMA; O-14 LEVEL DEDUCED RADIATIVE WIDTH; ASTROPHYSICAL N-13(P; GAMMA) REACTION RATE DISCUSSED;

D O I：

10.1016/0375-9474(93)90331-Q

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In stellar-evolution models, the N-13(p, gamma)O-14 reaction plays an important role in the hot CNO cycle. Its reaction rate depends directly on the magnitude of the radiative width of the 5.17 MeV level in O-14. That width has been measured using the Coulomb break-up technique. A 70 MeV/u O-14 beam was excited in the Coulomb field of a Pb-208 target, the N-13 and proton fragments being recorded using a magnetic spectrometer and CsI scintillators, respectively. The experimental value GAMMA(gamma) = 2.4 +/- 0.9 eV is in overall agreement with other recent measurements.

引用

页码：66 / 81

页数：16

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