/*===================================================================*/ /* NRDF D0368 Data No.4 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,4; D#=D368; TITLE=/TEST OF DETAILED BALANCE AT ISOLATED RESONANCES IN THE REACTIONS 27AL+P --> <-- 24MG+ALPHA AND TIME REVERSIBILITY/; PURPOSE=/IT IS WELL KNOWN THAT FOR NUCLEA REACTIONS PROCEEDING VIA AN ISOLATED RESONANCE, THE ANGLE-INTEGRATED CROSS SECTIONS AUTOMATICALLY SATISFY DETAILED BALANCE, WHETHER OR NOT NUCLEAR FORCES ARE TIME REVERSIBLE. HOWEVER, THIS IS NOT THE CASE FOR THE DIFFERENTIAL CROSS SECTIONS, SO THAT A DETAILED-BALANCE TEST FOR TIME REVERSIBILITY BECOMES POSSIBLE,IN PRINCIPLE, IN THE REGION OF ISOLATED RESONANCES. WE DESCRIBE THE FIRST SUCH EXPERIMENTAL TEST OF DETAILED BALANCE, THE REACTION STUDIED BEING 27AL+P --> <-- 24MG+ALPHA, TAKING PLACE THROUGH THE ISOLATED J-PI=2+ RESONANCE AT EXC-ENGY=12.901 MEV IN 28SI. ATH=(H.DRILLER'1',E.BLANKE'1',H.GENZ'2',A.RICHTER'2',G.SCHRIEDER'2', J.M.PEARSON'3'); INST-ATH=(2GERBOC'1',2GERTHD'2',1CANMON'3'); REF=NP/A; VLP=317(1979)300; RCTS=(27AL(P,ALPHA)24MG,24MG(ALPHA,P)27AL); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,4; RCT=24MG(ALPHA,P)27AL; ENR=X%; CHM=ELM; THK-TGT=(6.0UG/CM**2,1.0UG/CM**2); BAC=C; THK-BAC=(9UG/CM**2,4UG/CM**2); POL-TGT=NO; ALGN-TGT=NO; ACC=VDG; INST-ACC=2GERBOC; INC-ENGY-LAB-RANGE=3.380MEV(1.1KEV)3.520KEV; DELTA-INC-ENGY-LAB=X KEV; ERS-PRJ=0.03%; BEAM-INTNSTY=250NA; POL-PRJ=NO; DET-PARTCL=(P); DET-SYS=SBD; SOLID-ANGL=3.897MSR; ERS-DET=X KEV; ANL=(X'1'); /*@3@*/ PHQ=(XSECTN,EXC-FUNCT,DSIGMA/DOMEGA); /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,4; CMPD=28SI; THTL=177.73DEG; /*FIG.5-(B)*/ /* D368 FIG.5-(B) */ /* SER#= 4 */ /* XSCALE=LINEAR YSCALE=LINEAR */ /* XMAX= 3.00000000E+03 YMAX= 1.00000000E+01 */ /* XMIN= 2.90000000E+03 YMIN=-9.99999642E-02 */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-CM DSIGMA/DOMEGA (KEV) (MB/SR) 2911.29 4.41E-01 2911.29 4.41E-01 2912.40 4.90E-01 2912.95 5.88E-01 2913.77 7.60E-01 2914.88 1.03E+00 2915.70 2.23E+00 2917.35 7.81E+00 2918.46 9.14E+00 2919.83 8.87E+00 2919.83 8.45E+00 2920.11 5.82E+00 2921.21 3.64E+00 2922.59 2.82E+00 2923.14 1.77E+00 2922.86 1.52E+00 2922.59 1.42E+00 2923.14 1.30E+00 2923.69 1.13E+00 2925.07 1.03E+00 2925.34 9.08E-01 2925.89 8.09E-01 2926.72 6.62E-01 2927.00 5.14E-01 2928.10 6.62E-01 2929.75 5.14E-01 2931.68 4.65E-01 2933.33 5.39E-01 2935.81 4.41E-01 2937.74 5.64E-01 2939.67 1.47E+00 2941.05 2.01E+00 2942.15 1.57E+00 2942.97 1.03E+00 2943.53 7.60E-01 2946.00 5.88E-01 2947.66 5.64E-01 2949.31 4.41E-01 2950.96 4.65E-01 2953.72 3.67E-01 2956.47 3.18E-01 2960.05 5.14E-01 2974.93 4.16E-01 2979.61 6.37E-01 2980.16 5.14E-01 2981.82 6.13E-01 2984.02 7.60E-01 2984.85 1.08E+00 2986.50 2.43E+00 2986.78 3.41E+00 2987.88 4.08E+00 2989.26 4.03E+00 2989.81 2.97E+00 2991.18 2.06E+00 2991.74 1.15E+00 2992.56 8.83E-01 2993.39 1.01E+00 2994.77 6.62E-01 2996.42 7.36E-01 2997.52 4.90E-01 2998.35 6.62E-01 3000.27 4.65E-01 3001.38 5.14E-01 3001.93 3.67E-01 3003.03 4.90E-01 3003.86 4.41E-01 3005.23 4.41E-01 3005.51 3.42E-01 3007.16 2.93E-01 3007.99 5.39E-01 \END; /*===================================================================*/ |