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/* NRDF D1591 Data No.5 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,5;
D#=D1591;
TITLE=/ 4He(4He,3He)5He(g.s.) reaction at 118 MeV, and its distorted
wave Born approximation interpretation /;
PURPOSE=/ To measure the 4He(4He,3He)5He(g.s.) reaction at 118 MeV.
ATH=(R.E.WARNER'1', J.M.FETTER'1', R.A.SWARTZ'1', A.OKIHANA'2',
T.KONISHI'2', T.YOSHIMURA'2', P.D.KUNZ'3', M.FUJIWARA'4',
K.FUKUNAGA'5', S.KAKIGI'5', T.HAYASHI'5', J.KASAGI'6',
N.KOORI'7');
INST-ATH=(1USAOBR'1', 2JPNKUE'2', 1USACLU'3', 2JPNRCN'4', 2JPNKTO'5',
2JPNTOH'6', 2JPNTKS'7');
/* '5' Institute for Chemical Research */
/* '6' Laboratory of Nuclear Science */
REF=PR/C;
VLP=49(1994)1534;
RCTS=(ALPHA(ALPHA,ALPHA)ALPHA, ALPHA(ALPHA,3HE)5HE);
PHQS=(ANGL-DSTRN, ENGY-SPEC, ANGL-DSTRN'8', OPT-POTL-PARA);
/* '8' Integrated over the 3He laboratory energy range in which 0 <
alpha-neutron relative energy in 5He < 5 MeV for central rays */
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,5;
/* 2005-09-30 : Altered, At + Ot + Sr. Re-digitized */
/* 2005-11-01 : Converted, Sr + On. Converted to EXFOR E1591 */
CHM=ELM;
PHYS-FORM=GAS;
THK-TGT=XMG/CM**2'9';
/* '9' 3.05+-0.05 atmospheres absolute pressure */
POL-TGT=0%;
ALGN-TGT=0%;
ACC=CYC'10';
/* '10' Isochronous cyclotron, AVF cyclotron */
INST-ACC=2JPNRCN;
INC-ENGY-LAB=118MEV'11';
/* '11' 4He was bombarded with 118.7 MeV alpha particles. The
energy was reduced to 118.0 MeV at target center. */
BEAM-INTNSTY=2[8NA;
POL-PRJ=0%;
COINC=NO;
ANT-COINC=NO;
DET-SYS=EDE'12';
/* '12' To separate 4He, 3He, and Z=1 groups */
/* Experimental Method:
- Particle identification by 'E/Delta E' measurement (To separate
4He, 3He, and Z=1 groups)
RCT=ALPHA(ALPHA,3HE)5HE;
RTY=STRP;
PHQ=ANGL-DSTRN'25';
/* '25' Integrated over the 3He laboratory energy range in which
0 < alpha-neutron relative energy in 5He < 5 MeV for central
rays */
DET-PARTCL=3HE;
DET-SYS=SI'26';
/* '26' To detect 3He */
ANL=DWBA'27';
/* '27' The program DWUCK4 [P.D.Kunz, computer code DWUCK4
(unpublished)] with some modification */
/* Analysis:
- Integration of energy distribution (Integrated over the 3He
laboratory energy range in which 0 < E(alpha-n) < 5 MeV for
central rays)
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,5;
INC-ENGY-LAB=118MEV;
SYS-ERR=10%'28';
/* '28' Total systematic error. Accuracy in normalization.
Renormalization against the alpha-alpha elastic cross sections
removes several possible errors: beam charge integration, gas
pressure determination, solid-angle uncertainty and dead time
STATIST-ERR=X%'29';
/* '29' Statistical uncertainties are always smaller than
normalization accuracy (+-10%) */
EMT=3HE;
EXC-ENGY=0MEV;
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
THTC DELTA-THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA FLAG'30'
(DEG) (DEG) (MB/SR) (MB/SR) (NODIM)
29.7 +-0.9 5.35 +-0.05 1.
39.6 +-0.9 4.58 +-0.04 1.
49.6 +-1.0 3.21 +-0.03 1.
49.6 +-1.0 3.09 +-0.05 2.
59.5 +-1.1 1.49 +-0.02 1.
59.5 +-1.1 1.42 +-0.03 2.
64.4 +-1.0 1.05 +-0.01 1.
69.4 +-1.2 0.90 +-0.01 1.
69.4 +-1.2 0.88 +-0.02 2.
74.5 +-1.1 0.69 +-0.01 1.
79.5 +-1.3 0.50 +-0.01 1.
79.5 +-1.3 0.48 +-0.01 2.
84.5 +-1.3 0.29 +-0.01 1.
84.5 +-1.3 0.32 +-0.01 2.
89.6 +-1.4 0.22 +-0.01 2.
94.4 +-1.5 0.30 +-0.01 2.
99.3 +-1.6 0.48 +-0.01 2.
104.1 +-1.7 0.69 +-0.01 2.
118.5 +-1.9 1.26 +-0.02 2.
\END;
/*===================================================================*/
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