/*===================================================================*/ /* NRDF D1838 Data No.5 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,5; 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,5; /* 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) /* Related reference - none, J, Physical Review C(5)198205 (2540) RCT=D(PIP,P)P; PHQ=ANGL-DSTRN; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,5; SYS-ERR=([91%'28',<7%'29',<4%'30',<3.5%'31'); /* '28' Track reconstruction efficiency (typical value) */ /* '29' Background from the empty target (7% at the smallest angle and about 1% elsewhere) */ /* '30' Attenuation of the incident beam in the target ( 2-4 %, depending on momentum of pion ) */ /* '31' Loss of scattered protons ( 1-3.5%, depending on the proton momentum ) */ RSD=P; THTC=40DEG; DELTA-DSIGMA/DOMEGA=10%; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-MOM-LAB DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'32' (GEV/C) (UB/SR) (UB/SR) 0.48 259.0 +-24.0 0.52 158.0 +-13.0 0.56 121.0 +-9.4 0.60 103.0 +-6.2 0.62 90.6 +-6.3 0.64 83.3 +-3.6 0.66 65.7 +-2.9 0.68 65.8 +-3.6 0.70 54.6 +-3.5 0.72 50.4 +-3.0 0.76 41.4 +-2.2 0.80 37.8 +-2.0 0.84 31.7 +-1.7 0.88 29.8 +-1.7 0.92 26.8 +-1.4 0.96 25.4 +-1.5 1.00 20.3 +-1.2 1.04 18.3 +-1.3 1.08 14.0 +-1.0 1.12 14.3 +-1.1 1.16 12.2 +-0.87 \END; /*===================================================================*/ |