/*===================================================================*/ /* NRDF D1225 Data No.20 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,20; 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,20; 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,20; INC-ENGY-LAB=90MEV; /*@10@*/ J-PTY=6+'13'; /*@11@*/ THTC=19.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.4-(6)*/ /* D1225 FIG.4-(6) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 179.856 5.130E+02 +XXXXXXXXX-2.020E+02 182.554 1.883E+03 +XXXXXXXXX-XXXXXXXXX 185.870 5.113E+02 +9.285E+01-1.800E+02 188.908 7.127E+02 +1.580E+02-8.891E+01 191.804 2.140E+02 +1.274E+02-9.268E+01 194.885 4.759E+02 +XXXXXXXXX-XXXXXXXXX 197.469 5.080E+02 +XXXXXXXXX-XXXXXXXXX 201.378 8.088E+02 +XXXXXXXXX-XXXXXXXXX 204.361 6.183E+02 +1.124E+02-7.726E+01 207.776 4.885E+02 +5.157E+01-7.478E+01 209.905 3.994E+02 +5.704E+01-2.588E+01 213.713 2.114E+02 +XXXXXXXXX-XXXXXXXXX 216.345 3.849E+02 +XXXXXXXXX-XXXXXXXXX 218.889 2.663E+02 +XXXXXXXXX-XXXXXXXXX 221.927 3.711E+02 +XXXXXXXXX-XXXXXXXXX 225.799 3.959E+02 +XXXXXXXXX-XXXXXXXXX 228.377 3.953E+02 +XXXXXXXXX-XXXXXXXXX 230.945 3.572E+02 +XXXXXXXXX-XXXXXXXXX 234.394 4.074E+02 +XXXXXXXXX-XXXXXXXXX 237.781 2.384E+02 +3.404E+01-2.271E+01 239.954 3.110E+02 +3.283E+01-2.015E+01 243.826 3.317E+02 +XXXXXXXXX-XXXXXXXXX 245.918 1.817E+02 +XXXXXXXXX-XXXXXXXXX 249.791 1.938E+02 +2.768E+01-2.979E+01 251.889 1.135E+02 +2.980E+01-2.660E+01 255.292 7.848E+01 +2.068E+01-2.926E+01 257.480 1.210E+02 +3.183E+01-5.680E+01 264.062 5.411E+02 +9.826E+01-1.406E+02 266.618 4.278E+02 +XXXXXXXXX-XXXXXXXXX 270.048 3.994E+02 +5.703E+01-6.138E+01 273.494 4.406E+02 +4.639E+01-9.154E+01 276.044 3.258E+02 +4.653E+01-5.912E+01 279.017 2.253E+02 +5.929E+01-4.089E+01 281.591 2.176E+02 +3.958E+01-6.171E+01 284.828 2.482E+01 +2.201E+01-ZZZZZZZZZ 287.670 4.371E+02 +9.690E+01-5.462E+01 290.284 6.515E+02 +XXXXXXXXX-XXXXXXXXX 293.337 1.073E+03 +XXXXXXXXX-XXXXXXXXX 296.304 6.941E+02 +XXXXXXXXX-XXXXXXXXX 299.698 4.342E+02 +XXXXXXXXX-XXXXXXXXX 302.708 4.482E+02 +XXXXXXXXX-XXXXXXXXX 305.141 9.326E+01 +4.593E+01-4.699E+01 \END; /*===================================================================*/ |