/*===================================================================*/ /* NRDF D1225 Data No.63 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,63; 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,63; 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,63; INC-ENGY-LAB=90MEV; /*@13@*/ J-PTY=4+'15'; /*@14@*/ THTC=25.5DEG'16'; /*@15@*/ SYS-ERR=<20%; /*FIG.8-(7)*/ /* D1225 FIG.8-(7) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'17' DSIGMA'18' DELTA-DSIGMA'18' (DEG) (UB/SR/SR) (UB/SR/SR) 163.913 1.925E+01 +1.429E+01-1.074E+01 168.147 4.508E+01 +3.605E+01-1.257E+01 174.160 4.374E+01 +9.469E+00-2.022E+01 175.459 3.717E+01 +1.969E+01-7.586E+00 179.713 6.487E+01 +1.668E+01-1.808E+01 182.695 9.004E+01 +1.949E+01-2.070E+01 185.271 9.014E+01 +XXXXXXXXX-XXXXXXXXX 188.267 1.028E+02 +1.435E+01-9.599E+00 190.832 1.212E+02 +2.153E+01-1.131E+01 194.682 1.477E+02 +2.061E+01-1.381E+01 197.286 9.991E+01 +2.163E+01-9.325E+00 200.683 1.687E+02 +XXXXXXXXX-XXXXXXXXX 203.328 6.340E+01 +1.895E+01-1.456E+01 206.347 5.218E+01 +1.786E+01-3.258E+01 282.627 3.947E+02 +1.014E+02-5.942E+01 285.586 7.595E+02 +XXXXXXXXX-XXXXXXXXX 289.023 7.361E+02 +XXXXXXXXX-XXXXXXXXX 292.035 6.682E+02 +XXXXXXXXX-XXXXXXXXX 294.630 5.151E+02 +XXXXXXXXX-XXXXXXXXX 297.189 6.481E+02 +XXXXXXXXX-XXXXXXXXX 301.483 6.493E+02 +XXXXXXXXX-XXXXXXXXX 303.636 5.892E+02 +XXXXXXXXX-XXXXXXXXX 306.642 5.899E+02 +XXXXXXXXX-XXXXXXXXX 310.062 7.186E+02 +XXXXXXXXX-XXXXXXXXX 312.214 6.738E+02 +XXXXXXXXX-XXXXXXXXX 316.105 4.560E+02 +6.364E+01-8.122E+01 318.688 4.139E+02 +8.960E+01-1.330E+01 321.222 7.459E+02 +1.615E+02-9.134E+01 324.798 1.019E+02 +8.760E+01-ZZZZZZZZZ 328.145 3.529E+02 +1.054E+02-5.322E+01 331.178 2.388E+02 +6.133E+01-7.206E+01 334.167 3.005E+02 +6.504E+01-7.652E+01 337.659 1.330E+02 +8.406E+01-7.609E+01 340.637 1.970E+02 +6.733E+01-5.946E+01 346.216 2.040E+02 +4.417E+01-6.616E+01 \END; /*===================================================================*/ |