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| /*===================================================================*/
/* NRDF D1225 Data No.68 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,68;
D#=D1225;
TITLE=/VARIOUS INTERMEDIATE CHANNELS IN THE
12C+12C->12C(G.S.)+ALPHA+8BE(G.S.) REACTION/;
PURPOSE=/THE 12C+12C->12C(G.S.)+ALPHA+8BE(G.S.) REACTION HAS BEEN
INVESTIGATED BY 12C-ALPHA COINCIDENCE MEASUREMENTS AT
INCIDENT ENERGIES OF 90, 110 AND 140 MEV. CROSS SECTIONS OF
THREE KINDS OF INTERMEDIATE CHANNELS (12C+12C*, 160*+8BE AND
ALPHA+20NE*) AND OF NON-RESONANT -PARTS LEADING TO THE SAME
12C(G.S.)+ALPHA+8BE(G.S.) FINAL CHANNEL HAVE BEEN DEDUCED.
COINCIDENCE CROSS SECTIONS WERE REPRODUCED BY DWBA
CALCULATIONS/;
ATH=(S.SHIMOURA'1',A.SAKAGUCHI'1',T.SHIMODA'2',T.FUKUDA'2',K.OGURA'2',
K.KATORI'2',H.OGATA'3');
INST-ATH=(2JPNKTO'1',2JPNOSA'2',2JPNRCN'3');
REF=NP/A;
VLP=452(1986)123;
RCTS=(12C(12C,12C,ALPHA)8BE);
PHQS=(ENGY-SPEC,DSIGMA);
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,68;
RCT=12C(12C,12C,ALPHA)8BE;
ENR=NAT;
CHM=ELM;
PHYS-FORM=SLD;
THK-TGT=1.1MG/CM**2;
BAC=SELF;
POL-TGT=0%;
ALGN-TGT=0%;
ACC=(CYC);
INST-ACC=2JPNRCN;
INC-ENGY-LAB=(90MEV,110MEV,140MEV);
CHRG-INC-ION=+4;
POL-PRJ=0%;
DET-PARTCL=(ALPHA'4',12C'5');
COINC=(ALPHA'4',12C'5');
ANT-COINC=NO;
DET-SYS=(SSD'4,5',CNTR-TLSCP'4,5',X'5,6');
/*@3@*/
SOLID-ANGL=(6MSR'4',33MSR'4',130MSR'4',12MSR'5');
ANL=(DWBA);
PHQ=(ENGY-SPEC,DSIGMA);
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,68;
INC-ENGY-LAB=90MEV;
/*@13@*/
J-PTY=3-'15';
/*@14@*/
THTC=40.5DEG'16';
/*@15@*/
SYS-ERR=<20%;
/*FIG.8-(12)*/
/* D1225 FIG.8-(12) */
/* FOLLOWING DATA ARE TAKEN FROM GRAPH */
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
THTC'17' DSIGMA'18' DELTA-DSIGMA'18'
(DEG) (UB/SR/SR) (UB/SR/SR)
-82.643 1.168E+02 +6.124E+01-5.165E+01
-79.127 2.162E+02 +7.327E+01-4.939E+01
-76.515 1.667E+02 +4.248E+01-4.220E+01
-73.451 1.959E+02 +4.991E+01-3.464E+01
-70.389 2.229E+02 +5.684E+01-3.337E+01
-67.341 1.611E+02 +3.461E+01-3.273E+01
-64.715 1.833E+02 +3.938E+01-2.744E+01
-61.220 1.832E+02 +2.538E+01-5.847E+00
-58.596 2.019E+02 +3.557E+01-1.873E+01
-55.109 1.556E+02 +2.156E+01-1.893E+01
-52.488 1.556E+02 +1.589E+01-1.442E+01
-48.993 1.555E+02 +2.153E+01-2.327E+01
-45.930 1.769E+02 +1.810E+01-3.592E+01
-43.309 1.768E+02 +1.807E+01-3.126E+01
-40.677 2.444E+02 +3.383E+01-2.977E+01
-37.191 1.824E+02 +3.211E+01-2.730E+01
-34.126 2.288E+02 +4.028E+01-2.121E+01
-31.497 2.870E+02 +3.975E+01-4.295E+01
-28.001 2.962E+02 +3.027E+01-3.604E+01
-25.377 3.159E+02 +5.562E+01-6.416E+01
-22.325 2.599E+02 +4.578E+01-2.412E+01
-18.834 2.282E+02 +4.017E+01-4.634E+01
-15.763 3.365E+02 +4.667E+01-5.037E+01
-13.133 4.504E+02 +7.920E+01-5.482E+01
-9.651 2.953E+02 +1.001E+02-8.862E+01
-6.595 2.766E+02 +1.185E+02-4.140E+01
-4.421 1.999E+02 +5.911E+01-6.446E+01
-0.951 9.475E+01 +3.211E+01-3.458E+01
2.581 2.852E+02 +8.445E+01-5.792E+01
5.188 1.870E+02 +5.537E+01-7.204E+01
8.682 1.809E+02 +3.185E+01-5.426E+01
10.866 1.751E+02 +2.425E+01-4.433E+01
14.784 1.148E+02 +3.891E+01-3.700E+01
17.422 1.928E+02 +5.709E+01-7.033E+01
20.029 1.224E+02 +3.118E+01-5.410E+01
23.068 6.821E+01 +1.738E+01-3.256E+01
29.167 4.055E+01 +2.983E+01-ZZZZZZZZZ
\END;
/*===================================================================*/
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