/*===================================================================*/ /* NRDF D1225 Data No.40 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,40; 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,40; 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,40; INC-ENGY-LAB=110MEV; /*@10@*/ J-PTY=7-'13'; /*@11@*/ THTC=16.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.6-(4)*/ /* D1225 FIG.6-(4) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 40.754 2.519E+01 +1.108E+01-ZZZZZZZZZ 49.371 1.319E+02 +5.181E+01-8.916E+01 51.946 1.081E+02 +6.379E+01-5.239E+01 56.255 2.558E+02 +6.675E+01-1.149E+02 58.810 5.951E+01 +3.204E+01-3.264E+01 60.945 2.686E+01 +1.055E+01-1.786E+01 64.835 1.193E+02 +4.685E+01-4.426E+01 68.716 3.015E+02 +6.631E+01-6.240E+01 71.297 3.929E+02 +1.026E+02-4.877E+01 73.869 2.728E+02 +4.916E+01-4.920E+01 76.886 4.952E+02 +XXXXXXXXX-XXXXXXXXX 79.879 2.092E+02 +XXXXXXXXX-XXXXXXXXX 82.878 1.191E+02 +2.146E+01-1.818E+01 85.883 1.078E+02 +7.384E+00-2.509E+01 88.884 7.004E+01 +9.926E+00-9.913E+00 92.333 1.603E+02 +2.888E+01-1.989E+01 94.919 2.723E+02 +3.859E+01-3.380E+01 98.358 3.007E+02 +5.417E+01-5.421E+01 101.376 6.231E+02 +1.123E+02-5.895E+01 183.442 1.513E+03 +3.949E+02-2.727E+02 185.155 1.051E+03 +5.129E+02-2.175E+02 206.178 1.811E+02 +3.983E+01-4.669E+01 209.192 2.879E+02 +7.516E+01-5.191E+01 212.631 3.286E+02 +5.921E+01-5.016E+01 215.208 3.178E+02 +5.727E+01-3.317E+01 217.791 4.426E+02 +1.343E+02-2.839E+01 220.795 3.749E+02 +6.757E+01-6.759E+01 224.648 1.584E+02 +1.656E+01-5.195E+01 227.233 2.602E+02 +5.724E+01-4.691E+01 230.675 3.624E+02 +6.532E+01-4.498E+01 233.681 3.280E+02 +7.213E+01-4.071E+01 236.682 2.203E+02 +6.688E+01-3.972E+01 239.691 2.433E+02 +5.352E+01-5.036E+01 242.267 2.202E+02 +4.843E+01-5.127E+01 245.703 2.201E+02 +3.118E+01-3.361E+01 249.144 2.775E+02 +6.103E+01-4.237E+01 251.718 2.200E+02 +5.744E+01-5.673E+01 254.717 1.338E+02 +4.649E+01-4.390E+01 260.719 5.842E+01 +4.764E+01-ZZZZZZZZZ 277.912 1.059E+02 +7.403E+01-ZZZZZZZZZ 284.793 1.739E+02 +1.216E+02-1.137E+02 289.940 1.023E+02 +4.996E+01-5.613E+01 293.377 1.057E+02 +4.650E+01-4.749E+01 296.823 1.857E+02 +5.635E+01-3.842E+01 299.400 1.796E+02 +5.450E+01-4.630E+01 301.987 3.369E+02 +1.135E+01-4.183E+01 305.419 2.418E+02 +4.356E+01-5.005E+01 308.847 1.423E+02 +4.943E+01-2.945E+01 311.395 2.082E+01 +1.825E+01-ZZZZZZZZZ \END; /*===================================================================*/ |