/*===================================================================*/ /* NRDF D1838 Data No.11 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,11; D#=D1838; TITLE=/Measurement of the differential cross section for the reaction pi+ + d -> p + p at momenta between 0.48 and 1.16 GeV/c/; PURPOSE=/To measure the differential cross section for pi+ d -> pp at pion momenta P(pi) from 0.48 and 1.16 GeV/c and seven CM angles, 6 deg., 14 deg., 23 deg., 31 deg., 40 deg., 52 deg. and 61 deg./; ATH=(M.AKEMOTO'1', K.BABA'1', I.ENDO'1', H.HIMEMIYA'1', K.INOUE'1', T.KAWAMOTO'1', Y.MAEDA'1', T.OHSUGI'1', R.OHTANI'1', Y.SUMI'1', T.TAKESHITA'1', S.UEHARA'1', T.UMEDA'1', T.MAKI'2', M.NAKANO'2'); INST-ATH=(2JPNHIR'1', 2JPNKIT'2'); /* '1' Department of Physics */ REF=PL/B; VLP=149(1984)321; RCTS=D(PIP,P)P; PHQS=(ANGL-DSTRN, ANGL-DSTRN'3'); /* '3' Legendre coefficient */ /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,11; /* 2003-10-11 : Compiled */ CHM=ELM; PHYS-FORM=LIQD; THK-TGT=XMG/CM**2'4'; /* '4' Cylinder of 5.5 cm diameter and 20 cm long */ POL-TGT=0%; ALGN-TGT=0%; ACC=SYN; INST-ACC=2JPNKEK; INC-MOM-LAB=0.48[1.16GEV/C; ERS-PRJ=1.4%; BEAM-INTNSTY=XMA'5'; /* '5' A typical intensity of 100000 pions per second for an unseparated beam */ POL-PRJ=0%; DET-PARTCL=P; COINC=(P,P); ANT-COINC=NO; DET-SYS=(MAG,MWPC,CRNKOV'6',TOF'7'); /* '6' Used to reject proton contamination in the incident beam */ /* '7' Particle identification of forward particle */ /* Experimental Method: - Time-of-flight (Particle identification of forward particle) RCT=D(PIP,P)P; PHQ=ANGL-DSTRN'61'; /* '61' Legendre coefficient */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,11; SYS-ERR=([91%'62',<7%'63',<4%'64',<3.5%'65'); /* '62' Track reconstruction efficiency (typical value) */ /* '63' Background from the empty target (7% at the smallest angle and about 1% elsewhere) */ /* '64' Attenuation of the incident beam in the target ( 2-4 %, depending on momentum of pion ) */ /* '65' Loss of scattered protons ( 1-3.5%, depending on the proton momentum ) */ RSD=P; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-MOM-LAB LEG-6'66' DELTA-LEG-6'66' (GEV/C) (NODIM) (NODIM) 0.48 -0.027 +-0.031 0.52 -0.037 +-0.045 0.56 -0.052 +-0.039 0.60 -0.066 +-0.035 0.64 -0.100 +-0.029 0.68 -0.068 +-0.030 0.72 -0.091 +-0.025 0.76 -0.097 +-0.024 0.80 -0.128 +-0.026 0.84 -0.085 +-0.020 0.88 -0.139 +-0.028 0.92 -0.119 +-0.028 0.96 -0.107 +-0.030 1.00 -0.043 +-0.012 \END; /*===================================================================*/ |