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/* NRDF D1225 Data No.27 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,27;
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,27;
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,27;
INC-ENGY-LAB=90MEV;
/*@10@*/
J-PTY=4+'13';
/*@11@*/
THTC=28.5DEG'14';
/*@12@*/
SYS-ERR=<20%;
/*FIG.5-(1)*/
/* D1225 FIG.5-(1) */
/* FOLLOWING DATA ARE TAKEN FROM GRAPH */
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
THTC'11' DSIGMA'12' DELTA-DSIGMA'12'
(DEG) (UB/SR/SR) (UB/SR/SR)
220.039 4.760E+01 +2.313E+01-2.598E+01
222.680 5.969E+01 +3.492E+01-2.778E+01
228.185 4.123E+01 +1.606E+01-2.312E+01
231.530 2.765E+01 +1.617E+01-1.664E+01
234.650 4.221E+01 +2.039E+01-2.174E+01
237.217 3.937E+01 +2.942E+01-2.092E+01
243.136 2.545E+01 +1.109E+01-1.227E+01
249.867 1.349E+01 +8.644E+00-7.358E+00
\END;
/*===================================================================*/
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