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/* NRDF D1706 Data No.22 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,22;
D#=D1706;
TITLE=/ Subthreshold antiproton production in pA, dA and alpha A
reactions /;
PURPOSE=/ To examine the antiproton production cross section in the
case of light ions, since a large cross section had been
observed in heavy-ion reactions; however unexpectedly, large
cross sections were also found in the light-ion-induced
reactions relative to proton-induced reactions. /;
ATH=(Y.SUGAYA'1', D.ASHERY'2', J.CHIBA'2', H.ITO'3', K.KIMURA'4',
YU.T.KISELEV'5', S.KOUDA'6', K.MIYANO'7', T.MURAKAMI'3',
J.MURATA'3', T.NAGAE'2', Y.NAKAI'8', M.NOMACHI'2', M.NUMAJIRI'2',
H.OCHIISHI'6', S.SAWADA'3', M.SEKIMOTO'2', T.SHIBATA'2',
T.SUZUKI'8', K.H.TANAKA'2', M.K.VLASOV'5', Y.YAMANOI'2',
K.YASUDA'3', Y.YOSHIMURA'2');
INST-ATH=(2JPNJPN'1', 2JPNKEK'2', 2JPNKTO'3', 2JPNNIA'4', 4RUSITE'5',
2JPNKYU'6', 2JPNNII'7', 2JPNIPC'8');
/* '1' Tokyo University of Agriculture and Technology, Tokyo */
/* '3' Department of Physics */
/* '6' Department of Physics */
/* '7' Department of Physics */
REF=NP/A;
VLP=634(1998)115;
RCTS=(C(P,ANTIP)X, 27AL(P,ANTIP)X, CU(P,ANTIP)X, PB(P,ANTIP)X,
C(D,ANTIP)X, 27AL(D,ANTIP)X, CU(D,ANTIP)X, PB(D,ANTIP)X,
C(ALPHA,ANTIP)X, 27AL(ALPHA,ANTIP)X, CU(ALPHA,ANTIP)X, C(P,KP)X,
27AL(P,KP)X, CU(P,KP)X, PB(P,KP)X, C(D,KP)X, 27AL(D,KP)X,
CU(D,KP)X, PB(D,KP)X, C(ALPHA,KP)X, 27AL(ALPHA,KP)X,
CU(ALPHA,KP)X, C(P,KN)X, 27AL(P,KN)X, CU(P,KN)X, PB(P,KN)X,
C(D,KN)X, 27AL(D,KN)X, CU(D,KN)X, PB(D,KN)X, C(ALPHA,KN)X,
27AL(ALPHA,KN)X, CU(ALPHA,KN)X, C(P,PIP)X, 27AL(P,PIP)X,
CU(P,PIP)X, PB(P,PIP)X, C(D,PIP)X, 27AL(D,PIP)X, CU(D,PIP)X,
PB(D,PIP)X, C(ALPHA,PIP)X, 27AL(ALPHA,PIP)X, CU(ALPHA,PIP)X,
C(P,PIN)X, 27AL(P,PIN)X, CU(P,PIN)X, PB(P,PIN)X, C(D,PIN)X,
27AL(D,PIN)X, CU(D,PIN)X, PB(D,PIN)X, C(ALPHA,PIN)X,
27AL(ALPHA,PIN)X, CU(ALPHA,PIN)X);
PHQS=MOM-DSTRN;
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,22;
/* 2002-05-24 : Compiled, On */
/* 2003-06-27 : Altered, On. SF3 and SF4 corrected */
/* 2006-07-08 : Altered, On. Systematic uncertainties corrected */
PHQ=MOM-DSTRN;
ENR=X%;
CHM=ELM;
PHYS-FORM=SLD;
BAC=X;
POL-TGT=0%;
ALGN-TGT=0%;
ACC=CYC'9';
/* '9' KEK-PS */
INST-ACC=2JPNKEK;
POL-PRJ=0%;
COINC=NO;
ANT-COINC=NO;
DET-SYS=(MAG,SCT'10',MWPC,CRNKOV'11');
/* '10' To perform ToF measurements */
/* '11' Lead glass Cherenkov counter to separate electrom from
pions */
/* 2006-10-05 : Altered, On. Heading of data error corrected */
RCT=CU(ALPHA,KP)X;
RTY=INCL;
THK-TGT=13400MG/CM**2;
INC-ENGY-LAB=(2.0GEV, 2.5GEV, 3.0GEV, 3.5GEV, 4.0GEV, 5.0GEV);
BEAM-INTNSTY=XMA'61';
/* '61' About half of 5*10**12 particle per pulse. */
DET-PARTCL=KP;
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,22;
SYS-ERR=(12%'12',10%'13',5%'14',1%'15',1%'16');
/* '12' Uncertainty in beam intensity measurement */
/* '13' Uncertainty in acceptance calculation */
/* '14' Uncertainty in correction for loss due to interaction */
/* '15' Uncertainty in correction for loss due to analytical cuts
/* '16' Uncertainty in correction for decay */
THTL=5.1DEG;
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
INC-ENGY-LAB MOM-EMT-LAB DSIGMA/DOMEGA/DP
DELTA-DSIGMA/DOMEGA/DP'62'
(GEV) (GEV/C) (MB/SR/(GEV/C)) (MB/SR/(GEV/C))
2.0 1.0 2.51 +-1.78
2.0 1.5 4.52 +-1.51
2.5 1.0 12.8 +-2.7
2.5 1.5 5.84 +-0.99
2.5 2.0 2.66 +-0.53
2.5 2.5 0.855 +-0.270
3.0 1.0 22.7 +-3.6
3.0 1.5 12.2 +-1.7
3.0 2.0 7.52 +-0.96
3.0 2.5 2.28 +-0.47
3.5 1.0 31.9 +-4.3
3.5 1.5 27.1 +-2.7
3.5 2.0 16.0 +-1.5
3.5 2.5 7.15 +-0.82
4.0 1.0 53.5 +-5.4
4.0 1.5 42.4 +-3.4
4.0 2.0 22.4 +-1.7
4.0 2.5 12.7 +-1.0
5.0 1.5 72.1 +-4.1
5.0 2.0 48.2 +-2.3
5.0 2.5 34.1 +-1.5
\END;
/*===================================================================*/
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