/*===================================================================*/ /* NRDF D1225 Data No.31 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,31; 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,31; 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,31; INC-ENGY-LAB=90MEV; /*@10@*/ J-PTY=4+'13'; /*@11@*/ THTC=16.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.5-(5)*/ /* D1225 FIG.5-(5) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 203.304 4.234E+00 +9.238E-01-XXXXXXXXX 209.848 1.126E+02 +2.916E+01-4.374E+01 212.068 4.320E+00 +3.756E+00-XXXXXXXXX 213.043 3.429E+01 +5.184E+01-5.200E+00 215.118 1.194E+02 +3.081E+01-4.149E+01 217.719 1.077E+02 +2.781E+01-3.519E+01 220.116 4.416E+01 +2.569E+01-6.769E+00 224.605 6.729E+01 +2.934E+01-2.754E+01 227.427 1.428E+02 +3.117E+01-4.337E+01 230.037 1.332E+02 +2.907E+01-4.917E+01 233.042 1.054E+02 +4.104E+01-3.884E+01 236.433 6.835E+01 +4.648E+00-2.522E+01 239.290 1.655E+02 +XXXXXXXXX-5.404E+01 242.188 1.593E+01 +6.205E+00-ZZZZZZZZZ 245.218 1.391E+01 +2.109E+01-ZZZZZZZZZ 247.918 9.975E+01 +2.575E+01-3.253E+01 250.454 1.292E+01 +1.042E+01-ZZZZZZZZZ 254.770 5.462E+01 +1.200E+01-2.337E+01 257.061 8.079E+01 +3.132E+01-2.818E+01 260.674 1.233E+02 +3.202E+01-3.450E+01 263.525 5.392E+01 +1.396E+01-1.874E+01 266.254 7.971E+01 +1.739E+01-3.417E+01 269.268 6.514E+01 +1.966E+01-2.401E+01 272.813 7.640E+01 +3.331E+01-2.972E+01 275.129 1.247E+02 +3.230E+01-4.068E+01 278.427 5.635E+01 +1.234E+01-1.956E+01 282.171 2.629E+01 +XXXXXXXXX-XXXXXXXXX \END; /*===================================================================*/ |