/*===================================================================*/ /* NRDF D1225 Data No.69 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,69; 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,69; 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,69; INC-ENGY-LAB=90MEV; /*@13@*/ J-PTY=3-'15'; /*@14@*/ THTC=37.5DEG'16'; /*@15@*/ SYS-ERR=<20%; /*FIG.8-(13)*/ /* D1225 FIG.8-(13) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'17' DSIGMA'18' DELTA-DSIGMA'18' (DEG) (UB/SR/SR) (UB/SR/SR) -78.293 2.062E+02 +5.339E+01-7.175E+01 -76.098 3.852E+02 +5.417E+01-5.842E+01 -72.585 3.377E+02 +XXXXXXXXX-XXXXXXXXX -69.951 3.377E+02 +1.472E+02-XXXXXXXXX -66.878 5.717E+02 +XXXXXXXXX-XXXXXXXXX -63.805 5.717E+02 +XXXXXXXXX-XXXXXXXXX -60.732 4.850E+02 +XXXXXXXXX-XXXXXXXXX -57.659 4.114E+02 +XXXXXXXXX-XXXXXXXXX -55.024 3.060E+02 +XXXXXXXXX-XXXXXXXXX -51.951 2.961E+02 +XXXXXXXXX-XXXXXXXXX -48.000 2.131E+02 +XXXXXXXXX-XXXXXXXXX -45.366 2.596E+02 +2.692E+01-4.649E+01 -42.293 2.512E+02 +2.605E+01-2.360E+01 -39.220 2.596E+02 +2.692E+01-2.439E+01 -35.707 1.749E+02 +3.127E+01-2.157E+01 -33.073 3.852E+02 +XXXXXXXXX-XXXXXXXXX -30.000 2.683E+02 +4.796E+01-4.069E+01 -27.805 3.728E+02 +XXXXXXXXX-XXXXXXXXX -23.854 3.607E+02 +6.448E+01-5.470E+01 -21.220 3.852E+02 +6.887E+01-5.842E+01 -17.268 3.162E+02 +5.653E+01-5.664E+01 -15.073 2.352E+02 +4.205E+01-5.442E+01 -11.561 4.541E+02 +8.118E+01-8.133E+01 -8.927 4.394E+02 +9.587E+01-9.037E+01 -5.854 4.850E+02 +6.820E+01-8.686E+01 -2.341 2.772E+02 +6.049E+01-3.418E+01 0.732 3.981E+02 +5.598E+01-8.188E+01 2.927 3.490E+02 +7.615E+01-8.076E+01 6.878 3.060E+02 +XXXXXXXXX-4.641E+01 9.512 1.104E+02 +3.322E+01-3.840E+01 12.585 2.865E+02 +2.972E+01-8.031E+01 16.098 1.068E+02 +2.765E+01-3.483E+01 18.293 1.259E+02 +6.093E+01-6.484E+01 21.805 3.607E+02 +XXXXXXXXX-1.676E+02 \END; /*===================================================================*/ |