/*===================================================================*/ /* NRDF D1225 Data No.21 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,21; 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,21; 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,21; INC-ENGY-LAB=90MEV; /*@10@*/ J-PTY=6+'13'; /*@11@*/ THTC=16.5DEG'14'; /*@12@*/ SYS-ERR=<20%; /*FIG.4-(7)*/ /* D1225 FIG.4-(7) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'11' DSIGMA'12' DELTA-DSIGMA'12' (DEG) (UB/SR/SR) (UB/SR/SR) 181.615 4.008E+02 +1.247E+02-1.513E+02 184.316 2.758E+03 +XXXXXXXXX-XXXXXXXXX 186.877 1.899E+03 +XXXXXXXXX-XXXXXXXXX 189.867 1.263E+03 +XXXXXXXXX-XXXXXXXXX 193.318 1.397E+03 +XXXXXXXXX-XXXXXXXXX 195.863 7.333E+02 +1.652E+02-1.348E+02 199.711 4.715E+02 +XXXXXXXXX-XXXXXXXXX 202.293 4.553E+02 +XXXXXXXXX-XXXXXXXXX 205.334 7.063E+02 +XXXXXXXXX-XXXXXXXXX 208.777 6.819E+02 +XXXXXXXXX-XXXXXXXXX 211.367 7.541E+02 +XXXXXXXXX-XXXXXXXXX 214.807 7.038E+02 +XXXXXXXXX-XXXXXXXXX 217.836 8.911E+02 +XXXXXXXXX-XXXXXXXXX 221.265 6.787E+02 +XXXXXXXXX-XXXXXXXXX 222.979 5.924E+02 +XXXXXXXXX-XXXXXXXXX 226.422 5.719E+02 +XXXXXXXXX-XXXXXXXXX 229.821 2.712E+02 +5.003E+01-8.943E+00 232.829 2.447E+02 +3.549E+01-3.103E+01 235.011 3.928E+02 +XXXXXXXXX-XXXXXXXXX 238.460 4.198E+02 +XXXXXXXXX-XXXXXXXXX 241.477 4.337E+02 +XXXXXXXXX-XXXXXXXXX 244.501 5.132E+02 +3.595E+01-1.701E+01 247.085 5.127E+02 +3.592E+01-4.952E+01 250.530 5.120E+02 +XXXXXXXXX-XXXXXXXXX 253.511 2.975E+02 +4.304E+01-9.905E+00 256.070 1.980E+02 +XXXXXXXXX-XXXXXXXXX 259.478 1.075E+02 +3.829E+01-3.341E+01 263.310 5.271E+01 +3.200E+01-2.204E+01 265.535 1.723E+02 +XXXXXXXXX-XXXXXXXXX 268.644 8.169E+02 +1.186E+02-1.939E+02 271.642 6.224E+02 +9.027E+01-9.685E+01 274.226 6.218E+02 +6.637E+01-4.071E+01 277.254 7.872E+02 +XXXXXXXXX-XXXXXXXXX 280.693 7.102E+02 +XXXXXXXXX-XXXXXXXXX 283.687 5.057E+02 +XXXXXXXXX-XXXXXXXXX 286.672 3.144E+02 +XXXXXXXXX-XXXXXXXXX 290.051 1.063E+02 +4.795E+01-4.442E+01 293.099 1.824E+02 +6.500E+01-1.760E+01 295.324 5.963E+02 +XXXXXXXXX-XXXXXXXXX 298.787 8.077E+02 +XXXXXXXXX-XXXXXXXXX 301.820 1.094E+03 +XXXXXXXXX-XXXXXXXXX 304.849 1.385E+03 +XXXXXXXXX-XXXXXXXXX 306.979 9.538E+02 +XXXXXXXXX-XXXXXXXXX 310.412 7.774E+02 +XXXXXXXXX-XXXXXXXXX 313.706 6.555E+01 +4.338E+01-4.482E+01 \END; /*===================================================================*/ |