/*===================================================================*/ /* NRDF D1225 Data No.75 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,75; 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,75; 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,75; INC-ENGY-LAB=90MEV; /*@13@*/ J-PTY=3-'15'; /*@14@*/ THTC=19.5DEG'16'; /*@15@*/ SYS-ERR=<20%; /*FIG.8-(19)*/ /* D1225 FIG.8-(19) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'17' DSIGMA'18' DELTA-DSIGMA'18' (DEG) (UB/SR/SR) (UB/SR/SR) -69.324 2.073E+03 +XXXXXXXXX-XXXXXXXXX -65.324 2.950E+03 +XXXXXXXXX-XXXXXXXXX -62.761 1.995E+03 +XXXXXXXXX-XXXXXXXXX -59.712 1.805E+03 +XXXXXXXXX-XXXXXXXXX -55.803 1.480E+03 +XXXXXXXXX-XXXXXXXXX -52.780 1.139E+03 +XXXXXXXXX-XXXXXXXXX -50.163 1.065E+03 +XXXXXXXXX-XXXXXXXXX -47.563 9.033E+02 +XXXXXXXXX-XXXXXXXXX -44.957 7.916E+02 +XXXXXXXXX-XXXXXXXXX -41.063 5.891E+02 +XXXXXXXXX-XXXXXXXXX -37.988 6.268E+02 +XXXXXXXXX-XXXXXXXXX -35.809 5.863E+02 +XXXXXXXXX-XXXXXXXXX -31.825 7.573E+02 +XXXXXXXXX-XXXXXXXXX -29.187 8.061E+02 +XXXXXXXXX-XXXXXXXXX -26.106 8.860E+02 +9.053E+01-1.794E+02 -23.099 6.185E+02 +1.331E+02-1.413E+02 -20.045 5.781E+02 +1.236E+02-1.174E+02 -16.878 1.067E+03 +XXXXXXXXX-1.299E+02 -14.277 9.055E+02 +1.590E+02-1.355E+02 -10.796 7.929E+02 +1.399E+02-XXXXXXXXX -7.688 1.025E+03 +1.047E+02-9.501E+01 -5.172 5.175E+02 +5.265E+01-6.295E+01 -2.102 5.331E+02 +5.423E+01-9.408E+01 0.467 3.723E+02 +6.553E+01-1.357E+02 3.110 4.093E+02 +XXXXXXXXX-1.577E+02 \END; /*===================================================================*/ |