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 /* NRDF D1634 Data No.3                                              */
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 /* Bibliography                                                      */
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 \\BIB,3;
 D#=D1634;
 TITLE=/ Study of the n p -> p p pi- reaction in the incident neutron
         momentum range 1.0-1.9 GeV/c /;
 PURPOSE=/ To study the neutron-proton singe-pion production reaction
           n p -> p p pi- in the incident neutron momentum range
           1.0-1.9 GeV/c. /;
 ATH=(T.TSUBOYAMA'1', N.KATAYAMA'1', F.SAI'1', S.S.YAMAMOTO'1');
 INST-ATH=(2JPNTOK'1');
      /* '1' Department of Physics */
 REF=NP/A;
 VLP=486(1988)669;
 RCTS=(P(D,PIN,P,P)P, P(N,PIN,P)P, P(P,PI0,P)P);
 PHQS=(TOT-XSECTN, XSECTN'2', ANGL-DSTRN);
 /* '2' Nucleon-nucleon single-pion production cross sections,
    Sigma(01) where 0, 1 are initial and final two-nucleon isospins
    respectively */
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 /* Experimental Conditions                                           */
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 \\EXP,3;
 /* 2003-10-01 : Compiled */
 CHM=ELM;
 PHYS-FORM=LIQD;
 POL-TGT=0%;
 ALGN-TGT=0%;
 ACC=SYN'3';
 /* '3' 12GeV proton synchrotron */
 INST-ACC=2JPNKEK;
 POL-PRJ=0%;
 ION-SOURCE=/ Spallation(Momenta of secondary beam of deuterons were
              determined from the kinematical fit of fully constrained
              dp -> ppppi- events.) /;
 DET-PARTCL=(PIN,P);
 COINC=(P,PIN);
 ANT-COINC=NO;
 DET-SYS=BUBBLC'4';
 /* '4' 1m liquid-hydrogen bubble chamber */
 RCT=(P(N,PIN,P)P-P(P,PI0,P)P);
 PHQ=XSECTN'11';
 /* '11' Nucleon-nucleon single-pion production cross sections,
         Sigma(01) where 0, 1 are initial and final two-nucleon
         isospins respectively */
 INC-MOM-LAB=(1.04GEV/C, 1.14GEV/C, 1.25GEV/C, 1.34GEV/C, 1.44GEV/C,
              1.48GEV/C, 1.59GEV/C, 1.69GEV/C, 1.79GEV/C, 1.89GEV/C);
 ANL=(X'12',X'13');
 /* '12' Prediction by VerWest and Arndt [B.J.VerWest and R.A.
         Arndt, Phys.Rev.C25(1982)1979.] */
 /* '13' Deck Model with and without an I=0 dibaryon by Grein et
         al. [W.Grein et al., Phys.Lett.B96(1980)176.] */
 /* Analysis:
    - Singma(01) is obtained by 2Sigma(np->pp pi-)-Sigma(pp->pp pi0).
      Sigma(pp->pp pi0) is interpolated from the data of ref. F.Shimizu
      et al., Nucl.Phys.A386(1982)571;Nucl.Phys.A389(1982)445.
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 /* Descriptive Parameters                                            */
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 \\DATA,3;
 INC-MOM-LAB=(1.04GEV/C, 1.14GEV/C, 1.25GEV/C, 1.34GEV/C, 1.44GEV/C,
              1.48GEV/C, 1.59GEV/C, 1.69GEV/C, 1.79GEV/C, 1.89GEV/C);
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 /* Data Table                                                        */
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 \DATA;
 MOM XSECTN'14,14' DELTA-XSECTN'14,15'
 (GEV/C) (MB) (MB)
 1.04 -0.06 +-0.08
 1.14 0.22 +-0.13
 1.25 -0.16 +-0.22
 1.34 0.19 +-0.25
 1.44 0.52 +-0.27
 1.48 0.32 +-0.27
 1.59 0.17 +-0.27
 1.69 0.84 +-0.29
 1.79 1.19 +-0.28
 1.89 2.65 +-0.29
 \END;
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