A HIGH-RESOLUTION STUDY OF THE NE-20(HE-3, T)NA-20 REACTION AND THE NE-19(P,GAMMA)NA-20 REACTION-RATE

被引：47
|
作者：
SMITH, MS
MAGNUS, PV
HAHN, KI
HOWARD, AJ
PARKER, PD
CHAMPAGNE, AE
MAO, ZQ
机构：
[1] YALE UNIV,AW WRIGHT NUCL STRUCT LAB,NEW HAVEN,CT 06511
[2] PRINCETON UNIV,DEPT PHYS,PRINCETON,NJ 08544
来源：
NUCLEAR PHYSICS A | 1992年 / 536卷 / 02期
基金：
美国国家科学基金会;
关键词：
NE-20(HE-3; T); E; 29.7; MEV; MEASURED SIGMA(EB); CALCULATED TEMPERATURE DEPENDENCE OF STELLAR NE-19(P; GAMMA)NA-20 REACTION RATE; NA-20 DEDUCED LEVELS; GAMMA; IMPLANTED TARGETS; MAGNETIC SPECTROGRAPH;
D O I：
10.1016/0375-9474(92)90386-X
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：
A high-precision measurement of the Ne-20(He-3, t)Na-20 reaction has been made using implanted Ne-20 transmission targets to obtain pertinent information on the low-energy resonances in the Ne-19(p, gamma)Na-20 reaction. Resonance energies (447 +/- 5, 658 +/- 5, 787 +/- 5, and 857 +/- 5 keV) and upper limits on total intrinsic widths (< 10, < 6, < 10, and < 16 keV) have been measured for four excited states above the 2.199 MeV proton threshold in Na-20. The stellar Ne-19(p, gamma)Na-20 reaction rate is calculated for temperatures between 1 x 10(8) and 1 x 10(9) K. When combined with a recent study of the O-15(alpha, gamma)Ne-19 reaction, a new estimate is made of the conditions required for breakout from the Hot CNO cycle to the rapid proton capture process.
引用
收藏
页码：333 / 348
页数：16
相关论文
共 50 条
  • [21] A STUDY OF MG-22 BY NE-20(HE-3,N) REACTION
    MCDONALD, AB
    ADELBERGER, EG
    NUCLEAR PHYSICS A, 1970, A144 (03) : 593 - +
  • [22] INELASTIC PROCESSES IN F-19(HE-3,D)NE-20 REACTION
    VERTSE, T
    DUDEKELL.A
    ELLIS, PJ
    BELOTE, TA
    ROAF, D
    NUCLEAR PHYSICS A, 1974, 223 (01) : 207 - 220
  • [23] STELLAR REACTION-RATE OF NE-20(ALPHA,GAMMA)MG-24
    SCHMALBROCK, P
    BECKER, HW
    BUCHMANN, L
    GORRES, J
    KETTNER, KU
    KIESER, WE
    KRAWINKEL, H
    ROLFS, C
    TRAUTVETTER, HP
    HAMMER, JW
    AZUMA, RE
    NUCLEAR PHYSICS A, 1983, 398 (02) : 279 - 307
  • [24] INELASTIC EFFECTS IN NE-20 (D, HE-3 F-19 REACTION
    DUDEK, A
    EDENS, DJ
    PHYSICS LETTERS B, 1971, B 36 (04) : 309 - &
  • [25] STATES IN NA-21 OBSERVED IN REACTIONS NE-20(HE-3,D) AND NA-23(P,T
    MARTIN, AM
    KEMPER, KW
    FLETCHER, NR
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1970, 15 (11): : 1329 - &
  • [26] STUDY OF NE-22 WIT NE-20 (T, P) REACTION
    FLYNN, ER
    HANSEN, O
    NATHAN, O
    NUCLEAR PHYSICS A, 1974, A228 (02) : 189 - 204
  • [27] ANGULAR CORRELATIONS IN THE REACTION NA-23(P,ALPHA-GAMMA)NE-20
    SEED, J
    PHILOSOPHICAL MAGAZINE, 1953, 44 (355): : 921 - 924
  • [28] NE-20(P,T)NE-18 REACTION AS A TEST OF NE-18 AND NE-20 WAVE FUNCTIONS
    LECUYER, J
    GILL, RD
    RAMAVATARAM, K
    CHANT, NS
    MONTAGUE, DG
    PHYSICAL REVIEW C, 1970, 2 (01): : 116 - +
  • [29] STUDY OF LEVEL STRUCTURE OF NE-20 FROM HE-3,D REACTION ON F-19
    GUPTA, HMS
    BELOTE, TA
    ROAF, D
    NUCLEAR PHYSICS A, 1976, 267 (02) : 205 - 216
  • [30] STUDY OF NE-20(T,ALPHA)F-19 REACTION AT 20 MEV
    GARRETT, JD
    HANSEN, O
    NUCLEAR PHYSICS A, 1974, A229 (02) : 204 - 218
12345