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| /*===================================================================*/
/* NRDF D1991 Data No.1 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,1;
D#=D1991;
TITLE=/ Observation of strong low-lying E1 strength in the
two-neutron halo nucleus 11Li /;
ATH=(T.NAKAMURA'1', A.M.VINODKUMAR'1', T.SUGIMOTO'1', N.AOI'2',
H.BABA'3', D.BAZIN'4', N.FUKUDA'2', T.GOMI'2', H.HASEGAWA'3',
N.IMAI'5', M.ISHIHARA'2', T.KOBAYASHI'6', Y.KONDO'1', T.KUBO'2',
M.MIURA'1', T.MOTOBAYASHI'2', H.OTSU'6', A.SAITO'7', H.SAKURAI'2',
S.SHIMOURA'7', K.WATANABE'6', Y.X.WATANABE'5', T.YAKUSHIJI'6',
Y.YANAGISAWA'2', K.YONEDA'2');
INST-ATH=(2JPNTIT'1', 2JPNIPC'2', 2JPNRIK'3', 1USAMSU'4', 2JPNKEK'5',
2JPNTOH'6', 2JPNTOK'7');
/* '1' Department of Physics */
/* '3' Department of Physics */
/* '4' National Supercondugting Cyclotron Laboratory */
/* '6' Department of Physics */
/* '7' Center for Nuclear Study */
REF=PRL;
VLP=96(2006)252502;
RCTS=PB(11LI,11LI)PB;
PHQS=(ANGL-DSTRN, ENGY-SPEC, XSECTN, TRNSN-STRGTH'8');
/* '8' dE(B1)/dE(rel) */
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,1;
/* 2006-07-03 : Compiled, Kc + On */
/* 2006-07-03 : Recieved, On. Received by e-mail from T.Nakamura
RTY=INEL-SCATT;
CHM=ELM;
PHYS-FORM=SLD;
THK-TGT=346MG/CM**2;
POL-TGT=0%;
ALGN-TGT=0%;
ACC=(CYC'9',PRJFS'10');
/* '9' To accelerate primary 100 MeV/A 18O beam */
/* '10' To separate fragment from Be target bombarded by 18O
beam */
INST-ACC=(2JPNIPC'9',2JPNIPC'10');
/* '9' RIKEN Accelerator Research Facility */
/* '10' RIKEN projectile-fragment separator */
INC-ENGY-LAB=69.7MEV/A;
ERS-PRJ=XKEV'11';
/* '11' Momentum spread of +-3% */
BEAM-INTNSTY=XPNA'12';
/* '12' 2.0e4 ions/sec */
POL-PRJ=0%;
DET-PARTCL=(N,9LI);
COINC=(N,N,9LI);
ANT-COINC=NO;
DET-SYS=(NAI'13',SCT'14',DRFTC'15');
/* '13' DALI: To detect gamma from 9Li (no significant gamma line
was observed) */
/* '14' To detect two neutrons */
/* '15' To detect 9Li */
/* Experimental Method:
- Coincidence (Exclusion of two neutron signals from two
independent single neutron emission events are confirmed to be
negligible using 7Li(p,n)7Be reactions.)
RCT=PB(11LI,11LI)PB;
PHQ=ANGL-DSTRN;
ANL=X'16';
/* '16' Equivalent photon method */
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,1;
INC-ENGY-LAB=69.7MEV/A;
SYS-ERR=12%'17';
/* '17' Total systematic error. Systematic error in absolute
normalization coming from primarily from uncertainties in
neutron detection efficiency */
EXC-ENGY-EMT-MAX=4MEV'18';
/* '18' Excitation energy of 11Li measured from 9Li-2n threshold
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'19'
(DEG) (B/SR) (B/SR)
0.125 1.535E+03 +-1.348E+02
0.375 1.448E+03 +-7.944E+01
0.625 1.053E+03 +-6.271E+01
0.875 9.024E+02 +-5.137E+01
1.125 6.303E+02 +-3.661E+01
1.375 4.607E+02 +-2.733E+01
1.625 2.983E+02 +-2.319E+01
1.875 1.725E+02 +-2.429E+01
2.125 1.294E+02 +-1.480E+01
2.375 6.736E+01 +-1.648E+01
2.625 5.595E+01 +-9.195E+00
2.875 3.820E+01 +-7.338E+00
3.125 1.814E+01 +-5.573E+00
3.375 4.096E+00 +-5.237E+00
3.625 8.066E+00 +-4.923E+00
3.875 3.830E+00 +-6.639E+00
4.125 -2.895E+00 +-7.215E+00
4.375 4.068E+00 +-3.805E+00
4.625 8.464E+00 +-3.184E+00
4.875 1.258E+00 +-9.522E-01
\END;
/*===================================================================*/
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