/*===================================================================*/ /* NRDF D1670 Data No.4 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,4; D#=D1670; TITLE=/ Isobalic analog state of 11Li /; ATH=(T.TERANISHI'1', S.SHIMOURA'2', Y.ANDO'2', M.HIRAI'3', N.IWASA'2', T.KIKUCHI'2', S.MORIYA'2', T.MOTOBAYASHI'2', H.MURAKAMI'2', T.NAKAMURA'3', T.NISHIO'2', H.SAKURAI'1', T.UCHIBORI'2', Y.WATANABE'1', Y.YANAGISAWA'2', M.ISHIHARA'1,3'); INST-ATH=(2JPNIPC'1', 2JPNRIK'2', 2JPNTOK'3', 2GERGSI'4'); /* '2' Department of Physics */ /* '3' Department of Physics */ REF=(PL/B'5'); VLP=(407(1997)110'5'); /* Secondary reference - NP/A, 630(1998)387 (S.Shimoura et al., Proceedings of The Sixth International Conference on Nucleus-Nucleus Collisions (Gatlinburg, 1997)) RCTS=(P(11LI,11BE)N, D(11LI,11BE)N); PHQS=(ENGY-SPEC, ENGY-SPEC'6', ANGL-DSTRN'7', X'8'); /* '6' Fermi transition part */ /* '7' Fermi transition part */ /* '8' Excitation energy and width of IAS of 11Li. This is obtained by fitting Fermi part of energy spectrum (Fig.2c) with Gaussian function over the region of 0.4 MeV < Ed < 1.6 MeV. Effects of the detector acceptance and the Ed resolution were taken into account in the fitting procedure. */ /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,4; /* 2003-08-18 : Converted, Data converted to EXFOR E1670 */ ENR=X%; PHYS-FORM=SLD; BAC=SELF; POL-TGT=0%; ALGN-TGT=0%; ACC=PRJFS'9'; /* '9' A primary 18O beam of 100 AMeV bombarded a 9Be target of 1.4 g/cm2 thickness. Reaction products were analyzed by the projectile fragment separator RIPS [T.Kubo et al., Nucl. Instr. Meth. B70(1992)309] to obtain a radioactive 11Li beam. */ INST-ACC=2JPNIPC; INC-ENGY-LAB=64MEV/A'10'; /* '10' at the middle of the target */ ERS-PRJ=6%; BEAM-INTNSTY=20000PPS; POL-PRJ=0%; DET-PARTCL=(N,P,9LI); COINC=(P,N,9LI); ANT-COINC=NO; DET-SYS=(SCT'11',TOF'12'); /* '11' To detect decay particles from 11Be. The hodoscope consisted of a 5-mm thick Delta E plane and two 60-mm thick E planes. */ /* '12' To determine velocities of charged particles and neutrons over the 3.1 m flight path between the target and the hodoscope. */ /* Experimental Method: - Time-of-flight (To determine velocities of charged particles and neutrons over the 3.1 m flight path between the target and the hodoscope.) /* Analysis: - Invariant mass method /* In the reference data given are not corrected for acceptance. In this work, 11Be*(IAS) decays in two ways: 11Be*(IAS) -> 9Li+p+n (direct decay) and 11Be*(IAS) -> 10Li+p ->9Li+p+n (Sequential decay). The author assumed direct decay in the evaluation of acceptance. To avoid ambiguity due to this assumption, authors gave raw data (not corrected by acceptance) in the reference. */ /* none */ /* none */ RCT=P(11LI,11BE)N; PHQ=ANGL-DSTRN'38'; /* '38' Fermi transition part */ CHM=CH2'39'; /* '39' (CH2)n and C target are used, C target was used to subtract the contributions of carbon nuclei in the (CH2)n target. */ THK-TGT=XMG/CM**2'40'; /* '40' 191 and 188 mg/cm2 for (CH2)n and C target, respectively. ANL=DWBA; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,4; INC-ENGY-LAB=64MEV/A; SYS-ERR=10%'41'; /* '41' Total systematic error. Mainly due to the uncertainty in neutron detection efficiency */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTL DSIGMA/DOMEGA'42' DELTA-DSIGMA/DOMEGA'42,43' DATA1'44' (DEG) (MB/SR) (MB/SR) (NODIM) 0.2 371.1 +-73.9 0.32 0.6 312.6 +-38.1 0.31 1.0 246.8 +-26.7 0.31 1.4 134.2 +-18.3 0.29 1.8 83.2 +-13.5 0.27 2.2 45.2 +-9.8 0.25 2.6 21.6 +-7.0 0.23 3.0 18.7 +-5.3 0.21 3.4 2.8 +-3.8 0.19 3.8 5.2 +-2.8 0.17 4.2 2.5 +-2.1 0.15 4.6 0.5 +-1.6 0.13 \END; /*===================================================================*/ |