/*===================================================================*/ /* NRDF D1225 Data No.38 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,38; 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,38; 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,38; INC-ENGY-LAB=110MEV; /*@10@*/ J-PTY=7-'13'; /*@11@*/ THTC=22.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.6-(2)*/ /* D1225 FIG.6-(2) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 56.260 1.236E+02 +4.735E+01-8.120E+01 59.251 1.016E+02 +4.358E+01-5.646E+01 62.292 2.438E+02 +XXXXXXXXX-7.318E+01 65.232 6.876E+01 +2.331E+01-3.039E+01 68.177 2.137E+01 +1.821E+01-ZZZZZZZZZ 71.205 3.829E+01 +3.739E+01-2.382E+01 73.814 8.608E+01 +1.849E+01-5.930E+01 179.278 1.822E+02 +1.341E+02-1.197E+02 205.816 8.863E+01 +3.800E+01-4.230E+01 208.447 3.138E+02 +9.297E+01-8.693E+01 211.892 4.479E+02 +1.142E+02-5.450E+01 214.464 4.476E+02 +1.141E+02-6.710E+01 217.444 2.934E+02 +1.124E+02-4.392E+01 221.292 2.413E+02 +7.147E+01-4.900E+01 223.855 2.050E+02 +6.076E+01-4.164E+01 226.825 1.071E+02 +3.172E+01-3.451E+01 229.390 9.397E+01 +5.401E+01-5.221E+01 \END; /*===================================================================*/ |