/*===================================================================*/ /* NRDF D1225 Data No.28 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,28; 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,28; 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,28; INC-ENGY-LAB=90MEV; /*@10@*/ J-PTY=4+'13'; /*@11@*/ THTC=25.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.5-(2)*/ /* D1225 FIG.5-(2) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 212.252 1.860E+01 +1.381E+01-1.011E+01 215.738 1.860E+01 +1.381E+01-1.038E+01 218.789 4.796E+01 +1.852E+01-2.458E+01 220.969 4.796E+01 +1.852E+01-2.533E+01 224.891 5.646E+01 +1.686E+01-3.068E+01 228.814 3.754E+00 +1.744E+01-XXXXXXXXX 231.429 3.693E+01 +1.953E+01-2.261E+01 233.608 9.216E+01 +XXXXXXXXX-4.261E+01 236.223 6.648E+01 +3.517E+01-3.074E+01 239.709 8.920E+01 +XXXXXXXXX-3.800E+01 242.324 6.648E+01 +2.568E+01-2.575E+01 245.375 1.686E+01 +1.157E+01-9.163E+00 248.862 4.642E+01 +1.192E+01-2.452E+01 254.092 3.816E+01 +2.212E+01-1.956E+01 256.707 2.844E+01 +1.504E+01-1.994E+01 \END; /*===================================================================*/ |