/*===================================================================*/ /* NRDF D1225 Data No.6 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,6; 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,6; 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,6; INC-ENGY-LAB=90MEV; /*@10@*/ J-PTY=7-'13'; /*@11@*/ THTC=25.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.3-(3)*/ /* D1225 FIG.3-(3) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 55.546 2.067E+02 +6.220E+01-7.633E+01 57.662 3.174E+02 +8.216E+01-8.895E+01 60.935 3.511E+01 +3.976E+01-1.751E+01 182.480 5.102E+01 +1.757E+01-2.709E+01 212.937 5.555E+02 +5.760E+01-8.422E+01 215.536 5.384E+02 +XXXXXXXXX-XXXXXXXXX 218.630 2.984E+02 +5.334E+01-XXXXXXXXX 221.637 3.642E+02 +7.946E+01-4.490E+01 224.651 4.162E+02 +5.852E+01-6.312E+01 227.284 3.001E+02 +5.373E+01-4.543E+01 230.760 2.637E+02 +5.752E+01-1.079E+02 \END; /*===================================================================*/ |