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/* NRDF D1777 Data No.21 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,21;
D#=D1777;
TITLE=/ Effect of shell structure in the fusion reactions 82Se+134Ba
and 82Se+138Ba /;
PURPOSE=/ In order to investigate the effect of the nuclear shell
structure on the fusion process, we investigated the isotope
dependence in the fusion reactions 82Se+134Ba and
82Se+138Ba. /;
ATH=(K.SATOU'1,2', H.IKEZOE'1', S.MITSUOKA'1', K.NISHIO'1',
S.C.JEONG'3');
INST-ATH=(2JPNJAE'1', 2JPNTSU'2', 2JPNKEK'3');
/* '1' Advanced Science Research Center */
/* '2' Institute of Physics and Tandem Accelerator Center */
/* '3' Institute of Particle and Nuclear Studies */
REF=PR/C;
VLP=65(2002)054602;
RCTS=(138BA(82SE,N)219TH, 138BA(82SE,X)215RA, 138BA(82SE,2*N)218TH,
138BA(82SE,X)214RA, 138BA(82SE,3*N)217TH, 138BA(82SE,4*N)216TH,
138BA(82SE,5*N)215TH, 138BA(82SE,6*N)214TH,
138BA(82SE,7*N)213TH, 138BA(82SE,X)216AC, 138BA(82SE,X)215AC,
138BA(82SE,X)214AC, 138BA(82SE,X)213AC, 138BA(82SE,X)212AC,
138BA(82SE,X)212RA, 138BA(82SE,X)211RA, 138BA(82SE,X)210RA,
138BA(82SE,X)209RA, 134BA(82SE,N)215TH, 134BA(82SE,2*N)214TH,
134BA(82SE,3*N)213TH, 134BA(82SE,4*N)212TH,
134BA(82SE,5*N)211TH, 134BA(82SE,P)215AC, 134BA(82SE,X)214AC,
134BA(82SE,X)207RA, 134BA(82SE,X)213AC, 134BA(82SE,X)212AC,
134BA(82SE,X)211AC, 134BA(82SE,X)210AC, 134BA(82SE,X)212RA,
134BA(82SE,X)211RA, 134BA(82SE,X)210RA, 134BA(82SE,X)209RA,
134BA(82SE,X)208RA, 138BA(82SE,FUSN), 134BA(82SE,FUSN));
PHQS=(XSECTN'4', X'5');
/* '4' Evaporation residue production cross section */
/* '5' fusion probability */
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,21;
/* 2003-03-12 : Compiled */
CHM=ELM;
PHYS-FORM=SLD;
BAC=AL;
THK-BAC=XMG/CM**2'6';
/* '6' 1.3 micro-meter */
POL-TGT=0%;
ALGN-TGT=0%;
ACC=VDGT'7';
/* '7' JAERI tandem booster accelerator */
INST-ACC=2JPNJAE;
POL-PRJ=0%;
COINC=NO;
ANT-COINC=NO;
DET-SYS=(SI'8',SBD'9',TOF);
/* '8' Double sided position-sensitive strip detector (DPSD). The
typical energy resolution was 75 keV (FWHM) for alpha-decay
energy of 7.921 MeV from 216Th produced in the present
reaction. */
/* '9' To measure the elastic scattering events of the 82Se from
the barium target, which used to determine the absolute value
of the evaporation residue cross sections. */
ANL=(CC'10',STATIST-MODEL'11');
/* '10' Coupled-channel calculation using the code CCDEF
[J.O.Fernandez Niello et al., Comput. Phys. Commun.
54(1989)409]. In the calculation of the fusion cross section,
the coupling of the inelastic excitations of the first 2+ and
3- states for both the projectile and the target to the fusion
process are taken into account. */
/* '11' After the coupled-channel calculation, the survival
probability of each evaporation residue is calculated by using
the statistical model code HIVAP[W. Reisdorf and M. Schadel,
Z. Phys. A343(1992),47] */
/* Experimental Method:
- Time-of-flight
RCT=(134BA(82SE,X)210RA+134BA(82SE,X)209RA);
RTY=SQNTL-RCT'121';
/* '121' Evapolation */
PHQ=XSECTN'122';
/* '122' Evaporation residue production cross section */
ENR=73.5%'123';
/* '123' The contamination of the barium isotopes 135, 1136, 137
and 138 in 134BA target are 15.24%, 4.03%, 1.94% and 5.26%,
respectively. */
THK-TGT=0.50MG/CM**2;
INC-ENGY-LAB=(214MEV, 221MEV, 232MEV, 235MEV, 239MEV, 240MEV, 245MEV,
249MEV);
DET-PARTCL=(ALPHA'127',ALPHA'125',ALPHA'126',ALPHA'124');
/* '127' Alpha from 205Rn */
/* '126' Alpha from 206Rn */
/* '125' Alpha from 209Ra */
/* '124' Alpha from 210Ra */
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,21;
NORM=/ Elastic scattering events of the 82Se beam from the barium
target were used to determine the absolute value of the
evaporation residue cross sections. /;
TOT-ERR=40%;
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
INC-ENGY-CM SIGMA DELTA-SIGMA
(MEV) (UB) (UB)
214. 0.90 +0.80-0.77
221. 1.7 +0.8-0.7
232. 1.6 +0.7-0.7
235. 1.0 +0.6-0.5
239. 1.0 +0.5-0.5
240. 0.70 +0.40-0.36
245. 0.80 +0.40-0.37
249. 0.79 +0.32-0.32
\END;
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