/*===================================================================*/ /* NRDF D1733 Data No.4 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,4; D#=D1733; TITLE=/ Double-pion production induced by deutron-proton collisions in the incident deutron momentum range 2.1-3.8 GeV/c /; PURPOSE=/ The purpose of this experiment is (1) to extend the analysis of d-p interactions to obtain the d-p double-pion production cross sections, and from them deduce the p-p and n-p double-pion production cross sections, (2) to analyze the N-N double-pion production data in terms of various production mechanisms such as N-N double-pion production with one nucleon in the deuteron and the other as the spectator nucleon, and two sequential N-N single-pion production reactions involving all two nucleons in the deuteron, and (3) to analyze the d-p double-pion production reactions as the sum of the N-N double-pion production reactions and two sequential N-N single-pion production reactions. /; ATH=(T.TSUBOYAMA'1', F.SAI'1', N.KATAYAMA'1', T.KISHIDA'1', S.S.YAMAMOTO'1'); INST-ATH=(2JPNTOK'1'); /* '1' Department of Physics */ REF=PR/C; VLP=62(2000)034001; RCTS=(P(D,PIN,PIP,N,P)P, P(D,PIN,PI0,P,P)P, P(D,PIN,PIP,P)D, P(D,PIN,PIP,D)P); PHQS=(TOT-XSECTN, MOM-DSTRN'2', MOM-DSTRN'3', MOM-DSTRN'4', ENGY-SPEC'5'); /* '2' Momentum distributions of the slowest proton in the deuteron rest frame */ /* '3' Momentum distributions of the slowest neutron in the deuteron rest frame */ /* '4' Momentum distributions of proton in the deuteron rest frame /* '5' Invariant mass distribution among N-pi-pi */ /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,4; /* 2002-02-03 : Compiled */ CHM=ELM; PHYS-FORM=LIQD'6'; /* '6' KEK 1m bubble chamber filled with liquid hydrogen */ BAC=X; POL-TGT=0%; ALGN-TGT=0%; ACC=SYN; INST-ACC=2JPNKEK; ERS-PRJ=1%'7'; /* '7' See [N.Katayama et al., NP/A438(1985)685] */ POL-PRJ=0%; COINC=NO; ANT-COINC=NO; DET-SYS=(BUBBLC,TOF'8'); /* '8' See [N.Katayama et al., NP/A438(1985)685] */ /* Experimental Method: - Time-of-flight (See [N.Katayama et al., NP/A438(1985)685]) /* 2006-08-24 : Altered, At. Re-digitized */ RCT=P(D,PIN,PIP,N,P)P; PHQ=MOM-DSTRN'9'; /* '9' Momentum distributions of the slowest proton in the deuteron rest frame */ INC-MOM-LAB=3.79GEV/C; DET-PARTCL=(PIP,PIN,P); /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,4; INC-MOM-LAB=3.79GEV/C; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; MOM-EMT'10' DATA1'11' DELTA-DATA1'11,12' (GEV) (NODIM) (NODIM) 1.713E-02 1.003E+01 +-3.119E+00 2.813E-02 1.303E+01 +-3.547E+00 3.547E-02 2.398E+01 +-4.893E+00 4.648E-02 2.801E+01 +-5.321E+00 5.627E-02 3.199E+01 +-5.627E+00 6.728E-02 3.401E+01 +-5.810E+00 7.706E-02 1.505E+01 +-3.853E+00 8.685E-02 2.104E+01 +-4.587E+00 9.664E-02 1.804E+01 +-4.281E+00 1.064E-01 1.602E+01 +-3.976E+00 1.174E-01 1.309E+01 +-3.547E+00 1.272E-01 6.055E+00 +-2.508E+00 1.370E-01 8.073E+00 +-2.875E+00 1.468E-01 1.113E+01 +-3.303E+00 1.566E-01 3.058E+00 +-1.651E+00 1.664E-01 8.073E+00 +-2.875E+00 1.774E-01 9.052E+00 +-2.997E+00 1.859E-01 4.098E+00 +-2.018E+00 1.969E-01 5.076E+00 +-2.202E+00 2.067E-01 5.076E+00 +-2.202E+00 2.165E-01 5.076E+00 +-2.202E+00 2.251E-01 5.076E+00 +-2.202E+00 2.361E-01 3.058E+00 +-1.651E+00 2.471E-01 3.058E+00 +-1.651E+00 2.557E-01 3.058E+00 +-1.651E+00 2.667E-01 3.058E+00 +-1.651E+00 2.765E-01 6.055E+00 +-2.508E+00 2.862E-01 4.098E+00 +-2.018E+00 2.960E-01 2.080E+00 +-1.346E+00 3.070E-01 2.080E+00 +-1.346E+00 3.168E-01 7.095E+00 +-2.691E+00 3.266E-01 6.055E+00 +-2.446E+00 3.364E-01 4.098E+00 +-2.018E+00 3.474E-01 4.098E+00 +-2.018E+00 3.560E-01 3.058E+00 +-1.713E+00 3.670E-01 6.055E+00 +-2.446E+00 3.780E-01 5.076E+00 +-2.202E+00 3.963E-01 4.098E+00 +-2.018E+00 4.073E-01 3.058E+00 +-1.713E+00 4.183E-01 1.040E+00 +-1.040E+00 4.281E-01 4.098E+00 +-2.018E+00 4.367E-01 6.055E+00 +-2.508E+00 4.470E-01 1.101E+00 +-9.786E-01 4.556E-01 4.098E+00 +-2.080E+00 4.678E-01 1.101E+00 +-9.786E-01 4.771E-01 2.080E+00 +-1.407E+00 4.873E-01 1.101E+00 +-9.786E-01 4.959E-01 1.101E+00 +-9.786E-01 5.076E-01 5.076E+00 +-2.202E+00 5.174E-01 3.058E+00 +-1.651E+00 5.260E-01 1.101E+00 +-1.040E+00 5.374E-01 1.101E+00 +-1.040E+00 5.566E-01 1.101E+00 +-1.040E+00 5.676E-01 2.080E+00 +-1.407E+00 5.863E-01 1.101E+00 +-9.786E-01 6.080E-01 2.080E+00 +-1.407E+00 6.168E-01 1.101E+00 +-9.786E-01 \END; /*===================================================================*/ |