/*===================================================================*/ /* NRDF D1225 Data No.62 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,62; 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,62; 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,62; INC-ENGY-LAB=90MEV; /*@13@*/ J-PTY=4+'15'; /*@14@*/ THTC=28.5DEG'16'; /*@15@*/ SYS-ERR=<20%; /*FIG.8-(6)*/ /* D1225 FIG.8-(6) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'17' DSIGMA'18' DELTA-DSIGMA'18' (DEG) (UB/SR/SR) (UB/SR/SR) 162.693 2.190E+01 +9.544E+00-1.497E+01 165.242 1.524E+01 +1.056E+01-1.115E+01 168.257 5.680E+01 +1.014E+01-1.725E+01 171.232 3.954E+01 +1.723E+01-1.200E+01 174.660 8.421E+01 +1.505E+01-2.747E+01 177.221 9.602E+01 +1.715E+01-1.975E+01 180.641 1.472E+02 +2.631E+01-3.405E+01 184.052 1.520E+02 +XXXXXXXXX-XXXXXXXXX 185.757 1.520E+02 +XXXXXXXXX-XXXXXXXXX 189.160 1.093E+02 +2.387E+01-1.028E+01 191.724 1.470E+02 +2.626E+01-2.229E+01 194.702 1.129E+02 +2.464E+01-2.613E+01 197.688 1.205E+02 +3.121E+01-2.479E+01 201.510 6.449E+01 +1.670E+01-2.380E+01 279.994 4.904E+02 +8.767E+01-1.008E+02 282.548 4.159E+02 +XXXXXXXXX-XXXXXXXXX 285.966 5.969E+02 +XXXXXXXXX-XXXXXXXXX 289.398 1.549E+03 +XXXXXXXXX-XXXXXXXXX 292.372 9.768E+02 +XXXXXXXXX-XXXXXXXXX 294.920 6.367E+02 +XXXXXXXXX-XXXXXXXXX 298.327 5.579E+02 +XXXXXXXXX-XXXXXXXXX 301.730 4.014E+02 +XXXXXXXXX-XXXXXXXXX 303.855 3.084E+02 +XXXXXXXXX-XXXXXXXXX 306.859 7.250E+02 +XXXXXXXXX-XXXXXXXXX 310.280 1.149E+03 +XXXXXXXXX-XXXXXXXXX 313.689 1.111E+03 +XXXXXXXXX-XXXXXXXXX 316.657 5.565E+02 +XXXXXXXXX-XXXXXXXXX 320.068 5.563E+02 +XXXXXXXXX-XXXXXXXXX 325.105 1.877E+01 +4.258E+01-ZZZZZZZZZ 328.145 2.141E+02 +5.542E+01-5.485E+01 331.129 2.140E+02 +3.824E+01-8.333E+01 333.686 2.070E+02 +7.131E+01-5.802E+01 337.530 2.781E+02 +3.911E+01-6.433E+01 339.631 7.459E+01 +6.025E+01-6.238E+01 343.489 1.935E+02 +5.829E+01-5.876E+01 346.909 2.967E+02 +1.022E+02-6.099E+01 \END; /*===================================================================*/ |