/*===================================================================*/ /* NRDF D0204 Data No.3 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,3; D#=D204; TITLE=/GAMMA DECAY OF G9/2 ISOBARIC ANALOG RESONANCE IN 57CO/; PURPOSE=/FOR THE COPPER ISOTOPES(A=59[63) THE STRENGTH OF G9/2 IAR TO ANTI-IAR(AIAR) TRANSITION IS IN THE RANGE OF 10[20 % OF THE S.P. ESTIMATES, GRADUALLY INCREASING WITH MASS NUMBER. ON EITHER SIDE OF THESE NUCLEI,HOWEVER, THE STRENGTH OF THIS TRANSITION SEEMS TO BE REDUCED. TO BETTER UNDERSTAND THIS PHENOMENON AND TO COMPLETE THE M1 STRENGTH SYSTEMATICS, FURTHER DATA ON TARGET NUCLEI WHOSE 1F9/2 PROTON SHELL IS NOT COMPLETELY FILLED WOULD BE VERY USEFUL. WE STUDIED THE 56FE(P,GAMMA)57CO REACTION TO LOCATE THE 9/2+ IAR AND AIAR AND INVESTIGATED THE DECAY OF THE IAR./; ATH=(C.RANGACHARYULU'1',I.M.SZOGHY'1',C.ST-PIERRE'1',K.RAMAVATARAM'1'); INST-ATH=(1CANLUQ'1'); REF=PR/C; VLP=19(1979)1762; RCTS=(56FE(P,GAMMA)57CO); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,3; RCT=56FE(P,GAMMA)57CO; ENR=99%; THK-TGT=20UG/CM**2; BAC=C; THK-BAC=20UG/CM**2; POL-TGT=NO; ALGN-TGT=NO; ACC=(VDG); INST-ACC=1CANLUQ; INC-ENGY-RANGE=(3.7MEV[3.8MEV); DELTA-INC-ENGY=XKEV; ERS-PRJ=XKEV; POL-PRJ=NO; DET-PARTCL=(GAMMA); /*@3@*/ DET-SYS=(GE(LI)); SOLID-ANGL=XMSR; ERS-DET=1KEV; ANL=(SHELL-MODEL); PHQ=(EXC-FUNCT,ANGL-DSTRN'8',EXC-ENGY,RESN-ENGY,SPIN'8',PTY'8',IAS'6',B E-L,BM-L); /*@6@*/ /*@8@*/ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,3; /*@9@*/ /*@17@*/ CMPD=57CO; RSD=57CO; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; DATA1'10' J-PI DATA2'11' J-PI DATA3'12' DATA3-ERR BE-1'16' BM-1'16' RATIO'15,16' (MEV) (NODIM) (MEV) (NODIM) (EV) (EV) (UNIT1'13) (UNIT2'14') (NODIM) 9.690 9/2+ 0.0 7/2- 0.137 0.020 1.44 X X 9.690 9/2+ 1.223 9/2- 0.029 0.005 4.56E-4 X X 9.690 9/2+ 4.597 9/2+ 0.029 0.006 X 1.89E-2 0.011 \END; /*===================================================================*/ |