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| /*===================================================================*/
/* NRDF D1617 Data No.3 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,3;
D#=D1617;
TITLE=/ Reaction p-bar + 12C to n-bar + X at 590 MeV/c /;
PURPOSE=/ To report the first observation of antineutron production
from a complex nucleus struck by antiproton's /;
ATH=(K.NAKAMURA'1', T.FUJII'1', T.KAGEYAMA'1', F.SAI'1', S.SAKAMOTO'1',
S.SATO'1', T.TAKAHASHI'1', T.TANIMORI'1', S.S.YAMAMOTO'1',
Y.TAKADA'2');
INST-ATH=(2JPNTOK'1', 2JPNTSU'2');
/* '1' Department of Physics */
/* '2' Institute of Applied Physics */
REF=PR/C;
VLP=31(1985)1853;
RCTS=(12C(ANTIP,ANTIN)X, 1H(ANTIP,ANTIN)N);
PHQS=ANGL-DSTRN;
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,3;
/* 2005-11-02 : Converted, Am + On. Converted to EXFOR E1617 */
PHQ=ANGL-DSTRN;
CHM=ELM;
PHYS-FORM=SLD;
THK-TGT=1806+-6MG/CM**2;
POL-TGT=0%;
ALGN-TGT=0%;
ACC=SYN;
INST-ACC=2JPNKEK;
INC-MOM-LAB=590MEV/C;
DELTA-INC-MOM-LAB=0.5%;
ERS-PRJ=2.5%;
BEAM-INTNSTY=80PPS;
POL-PRJ=0%;
DET-PARTCL=ANTIN;
COINC=NO;
ANT-COINC=NO;
DET-SYS=SCT'3';
/* '3' To detect anti-neutron */
/* By author: anti-neutron detection efficiencies are nearly energy
independent, i.e. observed angular distribution is considered to
give dsigma/dOmega to a good approximation. */
RCT=(12C(ANTIP,ANTIN)X/1H(ANTIP,ANTIN)N);
ANL=GLAUBER;
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,3;
INC-MOM-LAB=590MEV/C;
DELTA-INC-MOM-LAB=0.5%;
SYS-ERR=8.5%'8';
/* '8' Total systematic error */
EMT=ANTIN;
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
THTL DSIGMA/DOMEGA-RATIO'9' DELTA-DSIGMA/DOMEGA-RATIO'9,10'
(DEG) (NODIM) (NODIM)
2.8 0.82 +-0.10
6.5 0.97 +-0.12
10.2 1.07 +-0.11
13.8 0.92 +-0.13
17.4 0.87 +-0.11
20.9 0.90 +-0.14
24.4 0.58 +-0.13
27.8 0.77 +-0.14
31.3 0.55 +-0.16
34.7 0.80 +-0.22
38.8 1.16 +-0.25
43.2 0.93 +-0.35
48.2 1.22 +-0.46
\END;
/*===================================================================*/
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