/*===================================================================*/ /* NRDF D1225 Data No.32 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,32; 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,32; 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,32; INC-ENGY-LAB=90MEV; /*@10@*/ J-PTY=4+'13'; /*@11@*/ THTC=13.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.5-(6)*/ /* D1225 FIG.5-(6) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 204.180 8.076E+01 +2.097E+01-2.980E+01 206.380 8.333E+01 +2.154E+01-3.723E+01 209.103 1.659E+02 +3.619E+01-2.980E+01 212.607 1.550E+02 +4.011E+01-3.198E+01 215.947 4.148E+01 +3.600E+01-ZZZZZZZZZ 218.727 1.266E+02 +XXXXXXXXX-XXXXXXXXX 221.228 4.560E+01 +3.155E+01-2.274E+01 228.243 4.248E+01 +7.608E+00-1.374E+00 230.609 1.580E+02 +4.762E+01-1.001E+01 232.847 2.192E+02 +5.674E+01-7.148E+01 236.777 1.854E+02 +1.084E+02-3.321E+01 239.914 3.030E+02 +5.416E+01-6.231E+01 242.552 3.125E+02 +5.586E+01-8.007E+01 245.173 2.826E+02 +5.051E+01-5.061E+01 249.111 2.553E+02 +3.590E+01-2.399E+01 251.672 1.457E+02 +XXXXXXXXX-XXXXXXXXX 254.779 1.891E+02 +3.387E+01-6.167E+01 257.745 8.294E+01 +XXXXXXXXX-3.398E+01 260.724 4.014E+01 +1.938E+01-XXXXXXXXX 264.317 7.479E+01 +1.337E+01-3.340E+01 267.381 6.987E+01 +1.527E+01-2.577E+01 269.994 5.916E+01 +2.306E+01-3.919E+01 273.186 1.482E+02 +2.649E+01-5.772E+01 276.191 8.739E+01 +2.626E+01-2.453E+01 279.216 6.073E+01 +1.828E+01-2.599E+01 282.169 2.413E+01 +7.281E+00-1.483E+01 285.465 1.331E+02 +XXXXXXXXX-XXXXXXXXX 287.694 1.729E+02 +XXXXXXXXX-XXXXXXXXX 291.487 5.106E+01 +2.230E+01-2.091E+01 294.112 4.772E+01 +1.045E+01-2.218E+01 \END; /*===================================================================*/ |