/*===================================================================*/ /* NRDF D1225 Data No.83 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,83; 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,83; 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,83; INC-ENGY-LAB=140MEV; /*@13@*/ J-PTY=4+'15'; /*@14@*/ THTC=28.5DEG'16'; /*@15@*/ SYS-ERR=<20%; /*FIG.9-(6)*/ /* D1225 FIG.9-(6) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'17' DSIGMA'18' DELTA-DSIGMA'18' (DEG) (UB/SR/SR) (UB/SR/SR) 155.498 1.125E+01 +1.285E+01-7.217E+00 158.525 1.056E+01 +7.982E+00-XXXXXXXXX 160.980 2.344E+01 +XXXXXXXXX-1.213E+01 165.228 3.388E+01 +XXXXXXXXX-XXXXXXXXX 168.152 5.966E+01 +XXXXXXXXX-XXXXXXXXX 170.742 5.786E+01 +XXXXXXXXX-XXXXXXXXX 173.278 7.815E+01 +XXXXXXXXX-XXXXXXXXX 177.129 9.258E+01 +XXXXXXXXX-XXXXXXXXX 179.713 9.281E+01 +XXXXXXXXX-XXXXXXXXX 183.171 8.715E+01 +XXXXXXXXX-XXXXXXXXX 186.230 6.706E+01 +XXXXXXXXX-XXXXXXXXX 188.723 1.181E+02 +3.588E+01-3.043E+01 191.717 1.352E+02 +3.527E+01-2.441E+01 194.377 8.523E+01 +3.751E+01-2.200E+01 196.875 1.452E+02 +5.041E+01-3.746E+01 200.452 6.577E+01 +2.003E+01-1.361E+01 288.777 9.490E+02 +XXXXXXXXX-XXXXXXXXX 292.234 8.912E+02 +XXXXXXXXX-XXXXXXXXX 295.708 7.577E+02 +XXXXXXXXX-XXXXXXXXX 298.266 8.964E+02 +XXXXXXXXX-XXXXXXXXX 301.362 5.470E+02 +XXXXXXXXX-XXXXXXXXX 303.549 4.493E+02 +XXXXXXXXX-XXXXXXXXX 306.581 4.080E+02 +XXXXXXXXX-XXXXXXXXX 310.464 3.962E+02 +XXXXXXXXX-XXXXXXXXX 312.263 2.496E+02 +XXXXXXXXX-XXXXXXXXX 315.747 1.986E+02 +2.833E+01-2.457E+01 319.635 1.866E+02 +2.626E+01-2.841E+01 322.209 1.999E+02 +2.088E+01-3.609E+01 325.155 3.083E+02 +6.747E+01-5.557E+01 327.826 1.819E+02 +1.901E+01-1.721E+01 330.782 2.627E+02 +XXXXXXXXX-8.608E+01 333.884 1.551E+02 +6.080E+01-8.504E+01 336.803 2.823E+02 +XXXXXXXXX-9.892E+01 339.496 1.459E+02 +5.730E+01-6.283E+01 343.137 4.443E+01 +3.108E+01-2.434E+01 345.183 8.636E+01 +6.054E+01-7.371E+01 348.459 1.767E+01 +5.334E+01-5.799E+00 351.306 4.947E+01 +3.460E+01-3.116E+01 355.425 1.583E+02 +7.727E+01-8.924E+01 358.576 6.938E+01 +6.074E+01-3.482E+01 \END; /*===================================================================*/ |