/*===================================================================*/ /* NRDF D1225 Data No.61 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,61; 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,61; 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,61; INC-ENGY-LAB=90MEV; /*@13@*/ J-PTY=4+'15'; /*@14@*/ THTC=31.5DEG'16'; /*@15@*/ SYS-ERR=<20%; /*FIG.8-(5)*/ /* D1225 FIG.8-(5) */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC'17' DSIGMA'18' DELTA-DSIGMA'18' (DEG) (UB/SR/SR) (UB/SR/SR) 162.950 1.682E+01 +XXXXXXXXX-XXXXXXXXX 166.912 5.349E+01 +9.636E+00-1.634E+01 169.442 4.377E+01 +2.998E+00-1.337E+01 172.485 7.671E+01 +1.687E+01-9.521E+00 175.486 9.339E+01 +1.320E+01-1.686E+01 178.510 1.387E+02 +1.965E+01-1.722E+01 181.451 9.938E+01 +2.186E+01-1.515E+01 183.996 9.284E+01 +1.673E+01-1.417E+01 187.411 1.023E+02 +1.843E+01-1.562E+01 189.912 6.422E+01 +XXXXXXXXX-XXXXXXXXX 193.380 1.125E+02 +2.475E+01-1.391E+01 195.507 1.124E+02 +2.929E+01-2.026E+01 198.738 2.442E+01 +8.484E+00-7.458E+00 201.773 4.006E+01 +8.810E+00-1.223E+01 279.063 4.265E+02 +7.685E+01-7.689E+01 282.528 7.230E+02 +XXXXXXXXX-XXXXXXXXX 285.483 5.915E+02 +XXXXXXXXX-XXXXXXXXX 288.500 8.221E+02 +XXXXXXXXX-XXXXXXXXX 291.516 1.143E+03 +XXXXXXXXX-XXXXXXXXX 294.434 6.711E+02 +XXXXXXXXX-XXXXXXXXX 297.345 3.689E+02 +XXXXXXXXX-XXXXXXXXX 300.304 3.119E+02 +XXXXXXXXX-XXXXXXXXX 303.302 3.674E+02 +XXXXXXXXX-XXXXXXXXX 306.713 3.916E+02 +XXXXXXXXX-XXXXXXXXX 309.311 5.818E+02 +XXXXXXXXX-XXXXXXXXX 312.290 5.806E+02 +XXXXXXXXX-XXXXXXXXX 315.261 5.423E+02 +XXXXXXXXX-XXXXXXXXX 318.646 4.584E+02 +8.243E+01-3.054E+01 321.191 4.283E+02 +XXXXXXXXX-XXXXXXXXX 326.655 2.350E+02 +7.132E+01-7.187E+01 330.473 2.122E+02 +6.440E+01-5.984E+01 333.866 1.917E+02 +2.003E+01-5.854E+01 336.479 3.251E+02 +9.842E+01-9.161E+01 338.493 1.202E+02 +3.123E+01-5.174E+01 342.847 2.835E+02 +9.849E+01-6.601E+01 344.801 6.167E+01 +5.025E+01-3.886E+01 348.303 1.456E+02 +7.120E+01-5.990E+01 \END; /*===================================================================*/ |