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/* NRDF D1822 Data No.14 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,14;
D#=D1822;
TITLE=/Structure of the unbound 11N nucleus by the (3He,6He)
reaction/;
PURPOSE=/This experiment was performed in order to confirm the
energies and widths of the ground state and low-lying levels
of the unbound 11N in the consideration of a possible halo
structure in 11N./;
ATH=(V.GUIMARAES'1', S.KUBONO'2', F.C.BARKER'3', M.HOSAKA'4',
S.C.JEONG'5', I.KATAYAMA'5', T.MIYACHI'2', T.NOMURA'5',
M.H.TANAKA'5', Y.FUCHI'5', H.KAWASHIMA'5', S.KATO'6',
C.C.YUN'7', K.ITO'7', H.ORIHARA'7', T.TERAKAWA'7', T.KISHIDA'8',
Y.PU'8', S.HAMADA'9', M.HIRAI'10', H.MIYATAKE'5');
INST-ATH=(3BZLUSP'1', 2JPNTOK'2', 3AULCBR'3', 2JPNJPN'4', 2JPNKEK'5',
2JPNYMG'6', 2JPNTOH'7', 2JPNIPC'8', 2JPNJAE'9', 2JPNTOK'10');
/* '1' Instituto de Fisica */
/* '2' Center for Nuclear Study */
/* '3' Department of Theoretical Physics, Research School of
Physical Science and Engineering */
/* '4' Institute for Molecular Science, Okazaki */
/* '5' Institute of Particle and Nuclear Studies */
/* '6' Physics Department */
/* '7' Cyclotron and Radioisotope Center */
/* '10' Department of Physics */
REF=(PR/C'11', RBF'12');
VLP=(67(2003)064601'11', 33(2003)263'12');
/* '12' V.Guimaraes et al., Proceedings of the XXV Workshop on
Nuclear Physics in Brazil (Sao Pedro, 2002) */
RCTS=14N(3HE,6HE)11N;
PHQS=(ENGY-SPEC'13', RESN-ENGY'14', ANGL-DSTRN, OPT-POTL-PARA);
/* '13' 6He energy spectra */
/* '14' Energy above the 10C+p threshold (decay energy) of the 11N
reasonance */
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,14;
/* 2003-10-03 : Compiled */
RTY=PKUP;
ENR=99.95%;
CHM=ELM;
PHYS-FORM=GAS;
THK-TGT=XMG/CM**2'15';
/* '15' 14N2 gas target filled to a pressure of about 21 cm Hg */
POL-TGT=0%;
ALGN-TGT=0%;
ACC=CYC;
INST-ACC=2JPNTOK'16';
/* '16' Center for Nuclear Study */
INC-ENGY-LAB=73.40MEV;
ERS-PRJ=0.05MEV;
BEAM-INTNSTY=[0.5UA;
POL-PRJ=0%;
DET-PARTCL=6HE;
COINC=NO;
ANT-COINC=NO;
DET-SYS=(MAG'17',PROP-CNTR'18',SCT'19',TOF'20',EDE'21');
/* '17' QDD type spectrograph to analyze 6He and other products
/* '18' Gas proportinal counter to detect reaction products and
measure energy loss */
/* '19' To measure energy and time-of-flight */
/* '20' ToF was obtained from the time interval between
cyclotron-rf and fast signal from plastic scintillator. */
/* '21' E and Delta E are obtained from plastic scintillator and
proportional counter. */
ERS-DET=[200KEV'22';
/* '22' FWHM */
CALB-DET=/ The known states of 21Mg from 24Mg(3He,6He)21Mg is used for
energy calibration. /;
/* Experimental Method:
- Time-of-flight (ToF was obtained from the time interval between
cyclotron-rf and fast signal from plastic scintillator.)
- Particle identification by 'E/Delta E' measurement (E and Delta
E are obtained from plastic scintillator and proportional
counter.)
RCT=14N(3HE,6HE)11N;
PHQ=ANGL-DSTRN;
ANL=DWBA'63';
/* '63' Computer code 'TWOFNR' was used. */
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,14;
INC-ENGY-LAB=73.40MEV;
RSD=11N;
EXC-ENGY=2.31MEV'64';
/* '64' Decay energy of 11N measured from 10C+p threshold
(Q-value=-22.788 MeV) */
TRNSF-L=1'65';
/* '65' Transferred angular momentum L */
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'66'
(DEG) (NB/SR) (NB/SR)
9.86 281. +-30.
12.32 211. +-23.
17.38 256. +-25.
21.7 301. +-30.
26.01 197. +-20.
31.72 146. +-15.
37.39 109. +-12.
43.02 77. +-8.
\END;
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