/*===================================================================*/ /* NRDF D1225 Data No.29 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,29; 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,29; 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,29; INC-ENGY-LAB=90MEV; /*@10@*/ J-PTY=4+'13'; /*@11@*/ THTC=22.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.5-(3)*/ /* D1225 FIG.5-(3) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 207.711 3.300E+01 +2.307E+01-2.231E+01 210.517 8.601E+01 +2.610E+01-3.534E+01 215.953 2.427E+01 +3.328E+01-ZZZZZZZZZ 216.473 3.732E+01 +1.816E+01-2.523E+01 219.815 1.678E+01 +1.470E+01-ZZZZZZZZZ 223.127 6.295E+01 +XXXXXXXXX-2.334E+01 226.248 8.738E+01 +1.922E+01-3.923E+01 228.729 4.203E+01 +1.455E+01-2.177E+01 232.666 4.326E+01 +XXXXXXXXX-2.372E+01 234.742 2.457E+01 +2.309E+01-1.486E+01 237.971 5.991E+01 +1.317E+01-3.621E+01 241.390 4.010E+01 +2.803E+01-2.710E+01 244.530 6.148E+01 +2.140E+01-2.977E+01 247.189 7.478E+01 +XXXXXXXXX-3.075E+01 250.316 1.073E+02 +XXXXXXXXX-3.755E+01 253.677 5.330E+01 +3.146E+01-2.581E+01 256.336 6.484E+01 +1.696E+01-2.406E+01 259.387 6.251E+01 +1.375E+01-2.051E+01 262.140 1.270E+01 +1.277E+01-ZZZZZZZZZ 267.818 1.262E+01 +1.725E+01-ZZZZZZZZZ \END; /*===================================================================*/ |