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/* NRDF D1820 Data No.8 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,8;
D#=D1820;
TITLE=/ Isoscalar giant dipole resonance in 208Pb via inelastic
alpha scattering at 400 MeV and nuclear incompressibility /;
PURPOSE=/ To investigate isoscalar giant dipole resonance in 208Pb
ATH=(M.UCHIDA'1', H.SAKAGUCHI'1', M.ITOH'1', M.YOSOI'1', T.KAWABATA'1',
H.TAKEDA'1', Y.YASUDA'1', T.MURAKAMI'1', T.ISHIKAWA'1', T.TAKI'1',
N.TSUKAHARA'1', S.TERASHIMA'1', U.GARG'2', M.HEDDEN'2',
B.KHARRAJA'2', M.KOSS'2', B.K.NAYAK'2', S.ZHU'2', M.FUJIWARA'3,4',
H.FUJIMURA'3', K.HARA'3', E.OBAYASHI'3', H.P.YOSHIDA'3',
H.AKIMUNE'5', M.N.HARAKEH'6', M.VOLKERTS'6');
INST-ATH=(2JPNKTO'1', 1USANOT'2', 2JPNRCN'3', 2JPNJAE'4', 2JPNKON'5',
2NEDGRN'6');
/* '1' Department of Physics */
/* '2' Physics Department */
/* '4' Advanced Science Research Center */
/* '5' Department of Physics */
/* '6' Kernfysisch Versneller Instituut */
REF=PL/B;
VLP=557(2003)12;
/* Secondary reference
- Uchida, Thesis(2003)
RCTS=208PB(ALPHA,ALPHA)208PB;
PHQS=(ENGY-SPEC, ANGL-DSTRN'7', STRGTH-FUNCT'8', STRGTH-FUNCT'9',
STRGTH-FUNCT'10', STRGTH-FUNCT'11', EWSR);
/* '7' Double differential cross section (dsigma/dOmega/dE) for
fixed E */
/* '8' Strength distribution for T=0, L=0 transitions, ISGMR */
/* '9' Strength distribution for T=0, L=1 transitions, ISGDR */
/* '10' Strength distribution for T=0, L=2 transitions, ISGQR */
/* '11' Strength distribution for T=0, L=3 transitions, HERO */
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,8;
/* 2003-07-26 : Compiled, Im + Am */
RTY=INEL-SCATT;
ENR=X%;
CHM=ELM;
PHYS-FORM=SLD;
THK-TGT=10.1MG/CM**2;
BAC=SELF;
POL-TGT=0%;
ALGN-TGT=0%;
ACC=CYC'12';
/* '12' RCNP ring cyclotron */
INST-ACC=2JPNRCN;
INC-ENGY-LAB=386MEV'13';
/* '13' Reference gives 400 MeV but correct value is 386 MeV
(private communication with H.Sakaguchi (2003.12.17)). */
CHRG-INC-ION=2;
POL-PRJ=0%;
DET-PARTCL=ALPHA;
COINC=NO;
ANT-COINC=NO;
DET-SYS=(MAG'14',MWDC'15',SCT'15');
/* '14' To momentum-analyze inelastically scattered particles
with the high resolution magnetic spectrometer Grand Raiden
[M. Fujiwara et al., Nucl. Instrum. Methods. Phys. Res.
A422(1999)484] */
/* '15' Focal-plane detection system consisted of two MWDC [T.
Noro, et al., RCNP Annual Report (1991) 177] and two plastic
scintillation counters */
ERS-DET=200KEV'16';
/* '16' Typical value (FWHM) */
CALB-DET=/ Energy scale was calibrated using elastic and inelastic
scattering of alpha-particles from 12C (g.s., 4.439, 7.641
and 9.41 MeV states) under the same magnetic-field
conditions as those in the measurements for 208Pb. /;
ANL=DWBA'17';
/* '17' Multipole decomposition analysis (MDA) was used analysis
of giant-resonance data. The angular distribution was fitted
with the superposition of multipolarity, with calculated DWBA
cross sections. */
/* Experimental Method:
- Ray-tracking technique
RCT=208PB(ALPHA,ALPHA)208PB;
PHQ=EWSR;
/* Analysis:
- Multipole deconposition analysis (MDA) was used analysis of
giant-resonance data. The angular distribution was fitted with
the superposition of multipolarity, with calculated DWBA cross
sections.
- Fitting of strength function
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,8;
INC-ENGY-LAB=386MEV'18';
/* '18' Reference gives 400 MeV but correct value is 386 MeV
(private communication with H.Sakaguchi (2003.12.17)). */
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
EXC-ENGY DELTA-EXC-ENGY WDTH DELTA-WDTH EWSR DELTA-EWSR FLAG'38'
(MEV) (MEV) (MEV) (MEV) (%) (%) (NODIM)
13.5 +-0.2 3.6 +-0.4 76 +-4 1
13.5 +-0.2 4.2 +-0.3 58 +-3 2
12.7 +-0.2 3.5 +-0.4 28 +-1 3
12.5 +-0.3 4.4 +-0.5 21 +-1 4
23.0 +-0.3 10.3 +-0.1 117 +-3 3
22.5 +-0.3 10.9 +-0.9 107 +-7 4
\END;
/*===================================================================*/
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