High spin resonances in 12C plus 12C scattering

被引：19
作者：
Chappell, SPG
Rae, WDM
Bremner, CA
Dillon, GK
Watson, DL
Greenhalgh, B
Cowin, RL
Freer, M
Singer, SM
机构：
[1] Univ Oxford, Nucl & Astrophys Lab, Oxford OX1 3RH, England
[2] Univ York, Dept Phys, York YO1 5DD, N Yorkshire, England
[3] Univ Birmingham, Sch Phys & Space Res, Birmingham B15 2TT, W Midlands, England
来源：
PHYSICS LETTERS B | 1998年 / 444卷 / 3-4期
基金：
英国工程与自然科学研究理事会;
关键词：
nuclear reactions; C-12(C-12,6 alpha); E = 31-45 MeV; excitation functions; spins; resonances; angular correlations;
D O I：
10.1016/S0370-2693(98)01415-4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report on new experimental data which reveal high spin resonances in C-12 +C-12 scattering. We have measured excitation functions for the C-12 [C-12, C-12(3(1)(-)) + C-12(3(1)(-))] reaction over the centre of mass energy range E-c.m.= 31 to 45 MeV. Resonances have been observed at E-c.m.= 32.5, 37.5 and 43 MeV. Detailed angular correlation measurements have been performed at the energy corresponding to the peak of each resonance. From an analysis of the angular correlations we suggest a dominant angular momentum of J = 22 at the highest energy. We interpret the results in terms of an alpha cluster model of superdeformed states in Mg-24. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：260 / 266
页数：7
相关论文
共 30 条
  • [1] RESONANCES IN C-12 ON CARBON REACTIONS
    ALMQVIST, E
    BROMLEY, DA
    KUEHNER, JA
    [J]. PHYSICAL REVIEW LETTERS, 1960, 4 (10) : 515 - 517
  • [2] BETTS RR, 1987, P INT NUCL PHYS C HA
  • [3] Calibration of position sensitive detectors with low-energy elastic scattering
    Chappell, SPG
    Rae, WDM
    Simmons, PM
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1997, 396 (03) : 383 - 387
  • [4] Angular correlations for alpha-particle decay in the reaction C-12[C-12,C-12(3(1)(-))->Be-8(O-1(+))+alpha]C-12* at E(cm)=32.5 MeV
    Chappell, SPG
    Rae, WDM
    [J]. PHYSICAL REVIEW C, 1996, 53 (06): : 2879 - 2884
  • [5] C-12+C-12 6-ALPHA-CHAIN STATE RESONANCE
    CHAPPELL, SPG
    WATSON, DL
    FOX, SP
    JONES, CD
    RAE, WDM
    SIMMONS, PM
    FREER, M
    FULTON, BR
    CLARKE, NM
    CURTIS, N
    LEDDY, MJ
    POPLE, JS
    HALL, SJ
    WARD, RP
    TUNGATE, G
    CATFORD, WN
    GYAPONG, GJ
    SINGER, SM
    REGAN, PH
    [J]. PHYSICAL REVIEW C, 1995, 51 (02): : 695 - 700
  • [6] CHAPPELL SPG, IN PRESS
  • [7] MOLECULAR RESONANCES IN C-12+C-12 INELASTIC-SCATTERING
    CORMIER, TM
    APPLEGATE, J
    BERKOWITZ, GM
    BRAUNMUNZINGER, P
    CORMIER, PM
    HARRIS, JW
    JACHCINSKI, CM
    LEE, LL
    BARRETTE, J
    WEGNER, HE
    [J]. PHYSICAL REVIEW LETTERS, 1977, 38 (17) : 940 - 943
  • [8] COWIN RL, IN PRESS NUCL INST A
  • [9] THE CONSTRUCTION AND OPERATION OF A HYBRID GAS-SILICON DETECTOR FOR STUDIES OF CLUSTER BREAKUP REACTIONS
    CURTIS, N
    MURPHY, AS
    LEDDY, MJ
    POPLE, JS
    CLARKE, NM
    FREER, M
    FULTON, BR
    HALL, SJ
    TUNGATE, G
    WARD, RP
    SINGER, SM
    CATFORD, WN
    GYAPONG, GJ
    CUNNINGHAM, RA
    LILLEY, JS
    CHAPPELL, SP
    FOX, SP
    JONES, CD
    WATSON, DL
    SIMMONS, PM
    HUNT, RA
    MERCHANT, AC
    SMITH, AE
    RAE, WDM
    ZHANG, J
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 351 (2-3) : 359 - 370
  • [10] A NEW TECHNIQUE FOR SPIN ALIGNMENT MEASUREMENT AND APPLICATION TO THE STUDY OF RESONANCES IN C-12 ON C-12 COLLISIONS
    DAVIS, NJ
    SHOTTER, AC
    MACDONALD, EW
    DAVINSON, T
    LIVINGSTON, K
    SELLIN, PJ
    BRANFORD, D
    PAGE, RD
    WOODS, PJ
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 330 (1-2) : 165 - 177
123