/*===================================================================*/ /* NRDF D1225 Data No.85 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,85; 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,85; 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,85; INC-ENGY-LAB=140MEV; /*@13@*/ J-PTY=4+'15'; /*@14@*/ THTC=22.5DEG'16'; /*@15@*/ SYS-ERR=<20%; /*FIG.9-(8)*/ /* D1225 FIG.9-(8) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'17' DSIGMA'18' DELTA-DSIGMA'18' (DEG) (UB/SR/SR) (UB/SR/SR) 161.231 3.536E+01 +XXXXXXXXX-2.427E+01 164.314 1.037E+01 +2.505E+01-1.616E+00 167.192 6.331E+01 +XXXXXXXXX-XXXXXXXXX 170.316 1.005E+01 +XXXXXXXXX-5.618E+00 173.224 3.937E+01 +XXXXXXXXX-9.414E+00 177.053 5.939E+01 +1.102E+01-1.571E+01 179.162 9.915E+01 +XXXXXXXXX-XXXXXXXXX 182.159 1.027E+02 +2.771E+01-1.901E+01 184.712 1.351E+02 +1.972E+01-1.310E+01 187.708 1.448E+02 +1.561E+01-2.676E+01 191.581 1.143E+02 +8.022E+00-1.792E+01 194.168 9.008E+01 +2.423E+01-5.925E+00 196.710 1.405E+02 +2.607E+01-1.540E-01 199.263 1.848E+02 +4.993E+01-3.415E+01 202.696 1.729E+02 +5.420E+01-4.996E+01 205.739 9.053E+01 +3.249E+01-2.162E+01 208.304 1.004E+02 +2.705E+01-3.597E+01 211.318 8.191E+01 +1.860E+01-5.791E+01 289.556 1.389E+03 +XXXXXXXXX-XXXXXXXXX 292.551 1.489E+03 +XXXXXXXXX-XXXXXXXXX 295.998 1.135E+03 +XXXXXXXXX-XXXXXXXXX 299.426 1.137E+03 +XXXXXXXXX-XXXXXXXXX 302.454 7.558E+02 +XXXXXXXXX-XXXXXXXXX 304.156 8.970E+02 +XXXXXXXXX-XXXXXXXXX 308.057 4.699E+02 +XXXXXXXXX-XXXXXXXXX 310.615 5.773E+02 +XXXXXXXXX-XXXXXXXXX 313.204 4.399E+02 +XXXXXXXXX-XXXXXXXXX 316.647 3.590E+02 +XXXXXXXXX-XXXXXXXXX 320.064 4.264E+02 +4.586E+01-5.439E+01 323.119 1.883E+02 +5.078E+01-6.325E+01 326.080 3.367E+02 +4.915E+01-5.285E+01 328.619 5.434E+02 +3.858E+01-1.438E+02 331.708 1.438E+02 +7.292E+01-1.128E+02 334.669 2.572E+02 +8.077E+01-9.213E+01 338.095 2.665E+02 +4.957E+01-8.339E+01 341.975 1.898E+02 +4.311E+01-7.216E+01 344.579 1.179E+02 +7.215E+01-9.572E+01 346.767 5.963E+01 +9.013E+01-ZZZZZZZZZ 349.699 1.661E+02 +1.110E+02-9.032E+01 356.127 1.666E+02 +1.629E+02-8.522E+01 \END; /*===================================================================*/ |