/*===================================================================*/ /* NRDF D0354 Data No.63 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,63; D#=D354; TITLE=/EXCITATION FUNCTION OF GIANT RESONANCES AS DOORWAY STATES IN THE 12C(P,P)12C REACTION BETWEEN 19 AND 23 MEV/; PURPOSE=/THE AIM OF THIS WORK IS TO USE A COMPLEMENTARY WAY OF DETERMINING THE PROPERTIES OF THEGIANT RESONANCES, THROUGH THE STUDY OF INELASTIC SCATTERING TO LOW-LYING STATES. THIS OCCURS WHEN THE PROJECTILE ENERGY IS SUCH THAT MULTI-STEP SECOND ORDER SCATTERING PROCESSES MEDIATED BY VIRTUAL FORMATION OF THESE GIANT RESONANCES ARE COMPARABLE TO THOSE OF THE NORMAL DIRECT REACTION. THE INTERST OF THE INCIDENT ENERGY REGION LIES IN THE FACT THAT THE EXCITATION ENERGY OF THE VIRTUAL CORE EXCITED STATES CORRESPONDS TO THE LOCATION OF GIANT DIPOLE AND QUADRUPOLE RESONANCES./; ATH=(Y.R.GAILLARD'1',P.MARTIN'1',G.PERRIN'1',P.DE SAINTIGNON'1', M.BUENERD'1',J.M.LOISEAUX'1',J.L.ESCUDIE'2',A.TARRATS'2', H.V.GERAMB'3'); INST-ATH=(2FR GRE'1',2FR SAC'2',2GERHAM'3'); REF=NP/A; VLP=327(1979)349; RCTS=(12C(P,P)12C); ACC=(CYC); INST-ACC=2FR GRE; INC-ENGY-LAB-RANGE=19.15MEV(200KEV)23.34MEV; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,63; RCT=12C(P,P)12C; CHM=(CH2,CD2); THK-TGT=2.00MG/CM**2; BAC=SELF; DELTA-INC-ENGY-LAB=30[60KEV; BEAM-INTNSTY=20[30NA; POL-PRJ=YES; DET-PARTCL=(P); DET-SYS=(SI,CNTR-TLSCP); SOLID-ANGL=1DEGMSR; ERS-DET=200[300KEV; ANL=(OPT-MODEL,COLL-MODEL); PHQ=(XSECTN,ANGL-DSTRN,DSIGMA/DOMEGA,ANALPW,X'A'); /*@53@*/ /*@54@*/ ANL=(OPT-MODEL,CC); /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,63; RSD=12C; EXC-ENGY=4.44MEV; J-PI=2+; INC-ENGY-LAB=21.38MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA (DEG) (MB/SR) /*FIG.2-(K)*/ \END; /*===================================================================*/ |