/*===================================================================*/ /* NRDF D1225 Data No.82 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,82; 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,82; 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,82; INC-ENGY-LAB=140MEV; /*@13@*/ J-PTY=4+'15'; /*@14@*/ THTC=31.5DEG'16'; /*@15@*/ SYS-ERR=<20%; /*FIG.9-(5)*/ /* D1225 FIG.9-(5) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'17' DSIGMA'18' DELTA-DSIGMA'18' (DEG) (UB/SR/SR) (UB/SR/SR) 151.979 4.588E+00 +3.469E+00-ZZZZZZZZZ 153.988 1.162E+01 +XXXXXXXXX-6.199E+00 158.755 1.093E+01 +8.262E+00-7.507E+00 160.370 2.195E+01 +4.847E+00-7.198E+00 163.677 5.566E+01 +XXXXXXXXX-1.700E+01 166.654 7.521E+01 +XXXXXXXXX-1.559E+01 169.221 8.898E+01 +9.296E+00-2.071E+01 172.778 4.919E+01 +1.081E+01-1.930E+01 175.597 1.737E+02 +XXXXXXXXX-XXXXXXXXX 178.711 1.025E+02 +XXXXXXXXX-2.897E+01 181.770 8.429E+01 +XXXXXXXXX-2.951E+01 184.310 1.177E+02 +XXXXXXXXX-3.030E+01 187.358 1.034E+02 +XXXXXXXXX-3.148E+01 191.123 1.623E+01 +XXXXXXXXX-8.905E+00 193.045 6.986E+01 +XXXXXXXXX-3.725E+01 285.643 6.801E+02 +XXXXXXXXX-XXXXXXXXX 288.669 6.821E+02 +XXXXXXXXX-XXXXXXXXX 290.815 7.550E+02 +XXXXXXXXX-XXXXXXXXX 293.830 8.090E+02 +XXXXXXXXX-XXXXXXXXX 297.387 4.472E+02 +XXXXXXXXX-XXXXXXXXX 299.993 4.196E+02 +XXXXXXXXX-XXXXXXXXX 302.619 3.448E+02 +XXXXXXXXX-XXXXXXXXX 306.117 2.744E+02 +XXXXXXXXX-XXXXXXXXX 309.630 1.977E+02 +XXXXXXXXX-XXXXXXXXX 312.624 2.418E+02 +XXXXXXXXX-XXXXXXXXX 314.758 2.860E+02 +XXXXXXXXX-XXXXXXXXX 318.299 1.746E+02 +3.128E+01-4.070E+01 321.457 7.908E+01 +2.742E+01-2.773E+01 323.936 1.589E+02 +2.871E+01-4.097E+01 326.968 1.542E+02 +4.024E+01-5.058E+01 329.973 1.766E+02 +6.152E+01-4.979E+01 331.822 8.535E+01 +1.550E+01-3.981E+01 335.741 7.260E+01 +2.203E+01-3.757E+01 339.183 8.045E+01 +2.441E+01-4.289E+01 341.870 4.593E+01 +1.396E+01-2.948E+01 347.836 7.848E+01 +4.234E+01-3.528E+01 350.944 4.789E+01 +6.177E+01-2.765E+01 354.425 4.209E+01 +3.961E+01-2.178E+01 357.688 1.392E+02 +5.464E+01-9.256E+01 360.747 1.144E+02 +6.157E+01-6.106E+01 \END; /*===================================================================*/ |