/*===================================================================*/ /* NRDF D1225 Data No.81 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,81; 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,81; 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,81; INC-ENGY-LAB=140MEV; /*@13@*/ J-PTY=4+'15'; /*@14@*/ THTC=34.5DEG'16'; /*@15@*/ SYS-ERR=<20%; /*FIG.9-(4)*/ /* D1225 FIG.9-(4) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'17' DSIGMA'18' DELTA-DSIGMA'18' (DEG) (UB/SR/SR) (UB/SR/SR) 147.681 9.506E+00 +5.502E+00-6.379E+00 150.903 4.015E+01 +1.196E+01-1.117E+01 153.856 7.614E+00 +4.812E+00-5.109E+00 156.132 4.601E+01 +1.572E+01-1.493E+01 159.718 3.021E+01 +9.000E+00-1.109E+01 162.338 3.130E+01 +9.364E+00-1.212E+01 165.829 3.354E+01 +1.146E+01-1.431E+01 168.842 4.370E+01 +6.098E+00-1.606E+01 171.361 7.635E+01 +1.961E+01-2.127E+01 174.889 6.726E+01 +1.727E+01-2.327E+01 177.878 9.986E+01 +1.028E+01-2.785E+01 181.032 6.343E+01 +2.163E+01-2.327E+01 183.190 7.486E+01 +2.235E+01-2.899E+01 286.225 3.887E+02 +1.160E+02-4.792E+01 288.350 5.401E+02 +XXXXXXXXX-XXXXXXXXX 291.917 3.911E+02 +XXXXXXXXX-XXXXXXXXX 295.394 4.474E+02 +XXXXXXXXX-XXXXXXXXX 297.609 3.936E+02 +XXXXXXXXX-XXXXXXXXX 301.576 3.468E+02 +XXXXXXXXX-XXXXXXXXX 303.835 2.428E+02 +XXXXXXXXX-XXXXXXXXX 307.782 2.360E+02 +XXXXXXXXX-XXXXXXXXX 310.442 2.010E+02 +XXXXXXXXX-XXXXXXXXX 313.126 1.502E+02 +3.858E+01-1.840E+01 316.172 1.663E+02 +2.949E+01-1.552E+01 319.765 1.057E+02 +2.695E+01-2.429E+01 321.954 1.059E+02 +2.292E+01-1.880E+01 324.734 4.851E+01 +1.454E+01-2.243E+01 328.071 1.138E+02 +3.391E+01-3.690E+01 331.587 1.070E+02 +3.182E+01-3.927E+01 334.265 8.266E+01 +3.187E+01-4.491E+01 337.375 6.599E+01 +5.273E+01-5.971E+01 339.932 9.478E+01 +4.103E+01-4.032E+01 342.585 8.341E+01 +4.031E+01-3.385E+01 346.775 2.344E+01 +1.609E+01-ZZZZZZZZZ 349.421 2.132E+01 +3.018E+01-ZZZZZZZZZ 352.480 2.210E+01 +2.038E+01-ZZZZZZZZZ 359.345 4.567E+01 +4.500E+01-2.269E+01 361.914 6.145E+01 +4.217E+01-ZZZZZZZZZ 364.928 8.006E+01 +6.405E+01-ZZZZZZZZZ 370.847 2.368E+02 +1.627E+02-ZZZZZZZZZ \END; /*===================================================================*/ |