/*===================================================================*/ /* NRDF D1733 Data No.5 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,5; 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,5; /* 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'13'; /* '13' Momentum distributions of the slowest neutron in the deuteron rest frame */ INC-MOM-LAB=3.79GEV/C; DET-PARTCL=(PIP,PIN,P); /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,5; INC-MOM-LAB=3.79GEV/C; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; MOM-EMT'14' DATA1'15' DELTA-DATA1'15,16' (GEV) (NODIM) (NODIM) 3.558E-02 6.003E+00 +-2.450E+00 4.417E-02 5.008E+00 +-2.236E+00 5.399E-02 4.012E+00 +-2.006E+00 6.503E-02 2.006E+00 +-1.409E+00 7.485E-02 3.997E+00 +-2.006E+00 8.466E-02 4.992E+00 +-2.236E+00 9.448E-02 1.011E+00 +-9.954E-01 1.055E-01 3.997E+00 +-2.006E+00 1.153E-01 2.006E+00 +-1.409E+00 1.252E-01 1.011E+00 +-9.954E-01 1.362E-01 1.011E+00 +-9.954E-01 1.448E-01 3.002E+00 +-1.730E+00 1.534E-01 1.991E+00 +-1.409E+00 1.656E-01 1.011E+00 +-9.951E-01 1.755E-01 2.006E+00 +-1.394E+00 1.951E-01 1.011E+00 +-9.954E-01 2.135E-01 1.011E+00 +-9.954E-01 2.245E-01 1.011E+00 +-9.954E-01 2.356E-01 1.991E+00 +-1.409E+00 2.454E-01 1.991E+00 +-1.409E+00 2.564E-01 1.991E+00 +-1.409E+00 2.650E-01 1.011E+00 +-9.951E-01 2.748E-01 1.991E+00 +-1.409E+00 2.957E-01 1.011E+00 +-9.954E-01 3.153E-01 1.011E+00 +-9.954E-01 3.448E-01 3.002E+00 +-1.730E+00 3.558E-01 1.011E+00 +-9.954E-01 3.669E-01 1.011E+00 +-9.954E-01 3.742E-01 1.011E+00 +-9.954E-01 3.951E-01 2.006E+00 +-1.409E+00 4.061E-01 1.011E+00 +-9.954E-01 4.147E-01 1.011E+00 +-9.954E-01 4.442E-01 1.011E+00 +-9.954E-01 4.748E-01 1.011E+00 +-9.954E-01 4.859E-01 1.011E+00 +-9.954E-01 5.362E-01 1.011E+00 +-9.954E-01 5.755E-01 1.011E+00 +-9.954E-01 5.951E-01 1.991E+00 +-1.409E+00 6.454E-01 1.011E+00 +-9.954E-01 6.564E-01 1.011E+00 +-9.954E-01 \END; /*===================================================================*/ |