/*===================================================================*/ /* NRDF D1225 Data No.17 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,17; 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,17; 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,17; INC-ENGY-LAB=90MEV; /*@10@*/ J-PTY=6+'13'; /*@11@*/ THTC=28.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.4-(3)*/ /* D1225 FIG.4-(3) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 177.663 2.339E+02 +6.103E+01-1.717E+02 180.644 2.112E+02 +6.386E+01-1.059E+02 183.793 5.689E+02 +XXXXXXXXX-1.468E+02 186.305 3.943E+02 +1.025E+02-1.017E+02 189.326 4.640E+02 +XXXXXXXXX-XXXXXXXXX 193.015 1.602E+02 +6.290E+01-7.763E+01 195.298 4.042E+02 +1.345E+01-8.364E+01 197.825 3.094E+02 +6.801E+01-5.606E+01 201.264 3.406E+02 +XXXXXXXXX-6.150E+01 205.071 2.519E+02 +5.538E+01-3.853E+01 207.185 2.130E+02 +3.837E+01-6.013E+01 210.146 1.685E+02 +3.688E+01-3.487E+01 213.121 1.472E+02 +2.078E+01-2.648E+01 216.107 1.374E+02 +3.013E+01-3.202E+01 219.511 1.199E+02 +2.160E+01-3.382E+01 223.016 2.031E+02 +3.668E+01-5.727E+01 225.197 2.642E+02 +3.743E+01-7.450E+01 228.188 2.549E+02 +3.600E+01-6.578E+01 231.413 6.983E+01 +3.404E+01-2.594E+01 \END; /*===================================================================*/ |