/*===================================================================*/ /* NRDF D1225 Data No.47 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,47; 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,47; 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,47; INC-ENGY-LAB=140MEV; /*@10@*/ J-PTY=7-'13'; /*@11@*/ THTC=28.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.7-(2)*/ /* D1225 FIG.7-(2) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 175.432 9.468E+01 +7.816E+01-ZZZZZZZZZ 178.728 2.338E+02 +1.518E+02-1.253E+02 181.698 2.770E+02 +2.456E+02-1.879E+02 184.599 5.413E+02 +1.897E+02-1.785E+02 187.045 1.292E+03 +4.534E+02-4.823E+02 190.822 9.590E+01 +7.330E+01-6.799E+01 193.860 6.886E+01 +6.088E+01-ZZZZZZZZZ 196.711 1.943E+02 +6.798E+01-9.124E+01 199.786 1.068E+02 +7.538E+01-7.576E+01 202.824 7.668E+01 +4.166E+01-5.845E+01 205.725 1.499E+02 +6.648E+01-4.946E+01 208.473 3.952E+01 +4.100E+00-ZZZZZZZZZ 211.456 4.235E+01 +3.240E+01-2.731E+01 217.741 1.084E+02 +5.878E+01-4.694E+01 219.874 1.123E+02 +4.976E+01-5.835E+01 223.454 3.501E+01 +3.324E+01-ZZZZZZZZZ \END; /*===================================================================*/ |