Level structure of 18Ne and its importance in the 14O(α,p)17F reaction rate

被引:14
作者
Almaraz-Calderon, S. [1 ]
Tan, W. P. [1 ]
Aprahamian, A. [1 ]
Bucher, B. [1 ]
Roberts, A. [1 ]
Wiescher, M. [1 ]
机构
[1] Univ Notre Dame, Nucl Sci Lab, Notre Dame, IN 46556 USA
来源
PHYSICAL REVIEW C | 2012年 / 86卷 / 02期
基金
美国国家科学基金会;
关键词
NUCLEI;
D O I
10.1103/PhysRevC.86.025801
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
The level structure of Ne-18 above the alpha-decay threshold has been studied using the O-16(He-3, n) reaction. A coincidence measurement of neutrons and charged particles decaying from populated states in Ne-18 has been made. Decay branching ratios were measured for six resonances and used to calculate the O-14(alpha,p)F-17 reaction rate which is a measure of one of two breakout paths from the hot CNO cycle. The new experimental information combined with previous experimental and theoretical information provides a more accurate calculation of the reaction rate.
引用
收藏
页数:9
相关论文
共 25 条
[1]  
Blackmon JC, 2003, NUCL PHYS A, V718, p127C, DOI [10.1016/S0375-9474(03)00689-4, 10.1016/S0375-9747(03)00689-4]
[2]  
Blackmon JC, 2001, NUCL PHYS A, V688, p142C, DOI 10.1016/S0375-9474(01)00686-8
[3]   Decay of a resonance in 18Ne by the simultaneous emission of two protons [J].
del Campo, JG ;
Galindo-Uribarri, A ;
Beene, JR ;
Gross, CJ ;
Liang, JF ;
Halbert, ML ;
Stracener, DW ;
Shapira, D ;
Varner, RL ;
Chavez-Lomeli, E ;
Ortiz, ME .
PHYSICAL REVIEW LETTERS, 2001, 86 (01) :43-46
[4]   MICROSCOPIC STUDY OF THE O-14(ALPHA,P)F-17 REACTION AT STELLAR ENERGIES [J].
FUNCK, C ;
LANGANKE, K .
NUCLEAR PHYSICS A, 1988, 480 (01) :188-204
[5]   Two-proton events in the 17F(p,2p)16O reaction -: art. no. 044612 [J].
Grigorenko, LV ;
Johnson, RC ;
Thompson, IJ ;
Zhukov, MV .
PHYSICAL REVIEW C, 2002, 65 (04) :446121-446124
[6]   Structure of Ne-18 and the breakout from the hot CNO cycle [J].
Hahn, KI ;
Garcia, A ;
Adelberger, EG ;
Magnus, PV ;
Bacher, AD ;
Bateman, N ;
Berg, GPA ;
Blackmon, JC ;
Champagne, AE ;
Davis, B ;
Howard, AJ ;
Liu, J ;
Lund, B ;
Mao, ZQ ;
Markoff, DM ;
Parker, PD ;
Smith, MS ;
Stephenson, EJ ;
Swartz, KB ;
Utku, S ;
Vogelaar, RB ;
Yildiz, K .
PHYSICAL REVIEW C, 1996, 54 (04) :1999-2013
[7]   Widths of astrophysically important resonances in 18Ne -: art. no. 035803 [J].
Harss, B ;
Jiang, CL ;
Rehm, KE ;
Schiffer, JP ;
Caggiano, J ;
Collon, P ;
Greene, JP ;
Henderson, D ;
Heinz, A ;
Janssens, RVF ;
Nolen, J ;
Pardo, RC ;
Pennington, T ;
Siemssen, RH ;
Sonzogni, AA ;
Uusitalo, J ;
Wiedenhöver, I ;
Paul, M ;
Wang, TF ;
Borasi, F ;
Segel, RE ;
Blackmon, JC ;
Smith, M ;
Chen, A ;
Parker, P .
PHYSICAL REVIEW C, 2002, 65 (03) :358031-358039
[8]   Stellar reactions with short-lived nuclei:: 17F(p, α)14O [J].
Harss, B ;
Greene, JP ;
Henderson, D ;
Janssens, RVF ;
Jiang, CL ;
Nolen, J ;
Pardo, RC ;
Rehm, KE ;
Schiffer, JP ;
Siemssen, RH ;
Sonzogni, AA ;
Uusitalo, J ;
Wiedenhöver, I ;
Paul, M ;
Wang, TF ;
Borasi, F ;
Segel, RE ;
Blackmon, JC ;
Smith, MS ;
Chen, A ;
Parker, P .
PHYSICAL REVIEW LETTERS, 1999, 82 (20) :3964-3967
[9]   Measurement of the inelastic branch of the 14O(α, p)17F reaction: Implications for explosive burning in novae and x-ray bursters [J].
He, J. J. ;
Woods, P. J. ;
Davinson, T. ;
Aliotta, M. ;
Buscher, J. ;
Clement, E. ;
Delahaye, P. ;
Hass, M. ;
Jenkins, D. G. ;
Kumar, V. ;
Murphy, A. St. J. ;
Neyskens, P. ;
Raabe, R. ;
Robinson, A. P. ;
Voulot, D. ;
van der Walle, J. ;
Warr, N. ;
Wenander, F. .
PHYSICAL REVIEW C, 2009, 80 (04)
[10]  
Iliadis C., 2007, Nuclear Physics of Stars