/*===================================================================*/ /* NRDF D1825 Data No.1 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,1; D#=D1825; TITLE=/ Isomeric 0+ state in 12Be /; PURPOSE=/ To produce 12Be in the isomeric second 0+ state. /; ATH=(S.SHIMOURA'1', A.SAITO'2', T.MINEMURA'3', Y.U.MATSUYAMA'2', H.BABA'2', H.AKIYOSHI'3', N.AOI'4', T.GOMI'2', Y.HIGURASHI'2', K.IEKI'2', N.IMAI'4', N.IWASA'5', H.IWASAKI'1', S.KANNO'2', S.KUBONO'1', M.KUNIBU'2', S.MICHIMASA'1', T.MOTOBAYASHI'2', T.NAKAMURA'6', H.SAKURAI'4', M.SERATA'2', E.TAKESHITA'2', S.TAKEUCHI'2', T.TERANISHI'1', K.UE'1', K.YAMADA'2', Y.YANAGISAWA'3', M.ISHIHARA'3', N.ITAGAKI'4'); INST-ATH=(2JPNTOK'1', 2JPNRIK'2', 2JPNIPC'3', 2JPNTOK'4', 2JPNTOH'5', 2JPNTIT'6'); /* '1' Center for Nuclear Study */ /* '2' Department of Physics */ /* '4' Department of Physics */ /* '5' Department of Physics */ /* '6' Department of Applied Physics */ REF=PL/B; VLP=560(2003)31; RCTS=9BE(18O,12BE)X; PHQS=(ANGL-CORRL'7', ENGY-SPEC); /* '7' Azimuthal angular correlation */ /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,1; /* 2003-10-08 : Compiled, Kc + Sr */ RTY=FRAG; ENR=NAT; CHM=ELM; PHYS-FORM=SLD; THK-TGT=2000MG/CM**2; BAC=SELF; POL-TGT=0%; ALGN-TGT=0%; ACC=CYC'8'; /* '8' RIKEN Ring Cyclotron */ INST-ACC=2JPNIPC; INC-ENGY-LAB=100MEV/A; POL-PRJ=0%; COINC=(GAMMA,12BE); ANT-COINC=NO; DET-SYS=(SCT'9',NAI'10',EDE,TOF); /* '9' The 12Be fragment after the isomeric decay was recorded by a plastic scintillator hodoscope with a 1 x 1 m2 active area located 4 m downstream of NaI scintillators (DALI). */ /* '10' NaI(Tl) scintillator. Gamma rays were detected by an array of 68 NaI(Tl) scintillators (DALI) positioned at 70 cm downstream of the F3 scintillator. Each NaI had an active volume of 12 x 6 x 6 cm3. */ ERS-DET=XKEV'11'; /* '11' The energy threshold for each detector was set to be lower than 50 keV. */ /* Experimental Method: - Particle identification by 'E/Delta E' measurement - Time-of-flight - Coincidence /* 2006-10-05 : Altered, Is. Re-digitized */ RCT=9BE(18O,12BE)X; PHQ=ANGL-CORRL'12'; /* '12' Azimuthal angular correlation */ DET-PARTCL=(GAMMA'13',12BE); /* '13' Prompt gamma from 12Be */ ANL=X'14'; /* '14' The theoretical predictions assuming the 0 to 2 to 0, 3 to 2 to 0 and the 4 to 2 to 0 transitions are shown, respectively. */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,1; INC-ENGY-LAB=100MEV/A; EMT-1=12BE; ENGY-GAMMA=(0.14MEV'15',2.1MEV'16'); /* '15' Prompt gamma from 12Be via NONe */ /* '16' Prompt gamma from 12Be via NONe */ ENGY-EMT-1-LAB=60MEV/A; EXC-ENGY-EMT-1=2.24MEV; DELTA-EXC-ENGY-EMT-1=0.02MEV; J-PTY-EMT-1=0+; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; PHIL'17' COUNTS DELTA-COUNTS (DEG) (ARB) (ARB) 1.003E+01 5.167E+01 +-5.343E+00 2.993E+01 4.257E+01 +-3.130E+00 4.999E+01 3.727E+01 +-3.047E+00 7.005E+01 4.307E+01 +-5.009E+00 8.994E+01 4.341E+01 +-4.884E+00 1.100E+02 3.523E+01 +-2.964E+00 1.301E+02 3.986E+01 +-3.715E+00 1.500E+02 4.558E+01 +-3.673E+00 1.700E+02 5.059E+01 +-5.217E+00 \END; /*===================================================================*/ |