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/* NRDF D1814 Data No.1 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,1;
D#=D1814;
TITLE=/Search for 21B/;
PURPOSE=/To find the very neutron-rich isotope 21B among the
fragmentation of a 94A MeV 40Ar beam./;
ATH=(A.OZAWA'1', Y.YAMAGUCHI'1,2', M.CHIBA'1,3', R.KANUNGO'1',
K.KIMURA'4', S.MOMOTA'5', T.SUDA'1', T.SUZUKI'2', I.TANIHATA'1',
T.ZHENG'1,6,7', S.WATANABE'2', T.YAMAGUCHI'1,8', K.YOSHIDA'1');
INST-ATH=(2JPNIPC'1', 2JPNNII'2', 2JPNTOH'3', 2JPNNIA'4', 2JPNJPN'5',
2JPNSUT'6', 3CPRBJG'7', 2GERGSI'8');
/* '2' Department of Physics */
/* '3' Department of Physics */
/* '5' Kochi University of Technology, Tosayamada, Kochi */
/* '6' Department of Physics */
/* '7' Department of Technical Physics */
REF=PR/C;
VLP=67(2003)014610;
RCTS=(9BE(40AR,X)X, 181TA(40AR,X)X);
PHQS=XSECTN'9';
/* '9' Production cross section */
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,1;
/* 2003-07-26 : Compiled */
RTY=FRAG;
PHQ=XSECTN'10';
/* '10' Production cross section */
ENR=X%'11';
/* '11' Mass number of target is not given in reference but
obtained by private communication. */
CHM=ELM;
PHYS-FORM=SLD;
BAC=X;
POL-TGT=0%;
ALGN-TGT=0%;
ACC=CYC'12';
/* '12' AVF and RIKEN Ring Cyclotron */
INST-ACC=2JPNIPC;
INC-ENGY-LAB=[94MEV/A;
BEAM-INTNSTY=40PNA;
POL-PRJ=0%;
COINC=NO;
ANT-COINC=NO;
DET-SYS=(MAG,SCT'13',SI'14',PPAC'15',TOF'16');
/* '13' Plastic scintillator to determine TOF and delta-E */
/* '14' To provide delta-E */
/* '15' To determine magnetic rigidity (Brho) values.
Efficiencies of the PPAC at F1 for B isotope were more than 90
% and close to 100 % for B isotopes for PPAC at F2. */
/* '16' Brho-delta-E-TOF method (where Brho is magnetic rigidity
and delta-E is energy loss) */
SOLID-ANGL=5MSR;
EFCN-DET=/ The RIPS setting was optimized for seven nuclei (25F, 24O,
23N, 22C, 19B, 17B and 15B). /;
ANL=X'17';
/* '17' EPAX2 (Empirical PArametrization of fragmentation Cross
Section)[K.Suemmerer and B.Blank, Phys. Rev. C61,
034607(2000)] is used to compared with observed production
cross section in Fig. 3 and 4 in reference. */
/* Experimental Method:
- On-line mass separation (Brho-delta-E-TOF method (where Brho is
magnetic rigidity and delta-E is energy loss) )
- Time-of-flight (Brho-delta-E-TOF method (where Brho is magnetic
rigidity and delta-E is energy loss) )
/* Analysis:
- The transmission losses were estimated were estimated by Monte
Carlo type calculation using code MOCADI [A. S. Goldhaber, Phys.
Lett. 53B,306(1974)]. According to authors simulations, the
transmission from the target to F2 were typically 3-10 %.
RCT=9BE(40AR,X)X;
THK-TGT=471MG/CM**2;
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,1;
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
Z-EMT A-EMT XSECTN'18' DELTA-XSECTN'18,19'
(NODIM) (NODIM) (B) (B)
5 15 7.0E-06 +-2.7E-06
5 17 2.91E-08 +-0.45E-08
5 19 3.4E-11 +-1.1E-11
6 17 5.7E-06 +-2.2E-06
6 19 1.96E-08 +-0.57E-08
6 20 2.17E-09 +-0.50E-09
6 22 1.23E-12 +-0.99E-12
7 22 8.9E-09 +-3.5E-09
7 23 2.19E-10 +-0.94E-10
8 23 1.30E-07 +-0.51E-07
8 24 5.6E-09 +-2.2E-09
9 25 4.0E-07 +-1.5E-07
9 26 9.9E-09 +-3.9E-09
\END;
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