/*===================================================================*/ /* NRDF D1706 Data No.49 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,49; D#=D1706; TITLE=/ Subthreshold antiproton production in pA, dA and alpha A reactions /; PURPOSE=/ To examine the antiproton production cross section in the case of light ions, since a large cross section had been observed in heavy-ion reactions; however unexpectedly, large cross sections were also found in the light-ion-induced reactions relative to proton-induced reactions. /; ATH=(Y.SUGAYA'1', D.ASHERY'2', J.CHIBA'2', H.ITO'3', K.KIMURA'4', YU.T.KISELEV'5', S.KOUDA'6', K.MIYANO'7', T.MURAKAMI'3', J.MURATA'3', T.NAGAE'2', Y.NAKAI'8', M.NOMACHI'2', M.NUMAJIRI'2', H.OCHIISHI'6', S.SAWADA'3', M.SEKIMOTO'2', T.SHIBATA'2', T.SUZUKI'8', K.H.TANAKA'2', M.K.VLASOV'5', Y.YAMANOI'2', K.YASUDA'3', Y.YOSHIMURA'2'); INST-ATH=(2JPNJPN'1', 2JPNKEK'2', 2JPNKTO'3', 2JPNNIA'4', 4RUSITE'5', 2JPNKYU'6', 2JPNNII'7', 2JPNIPC'8'); /* '1' Tokyo University of Agriculture and Technology, Tokyo */ /* '3' Department of Physics */ /* '6' Department of Physics */ /* '7' Department of Physics */ REF=NP/A; VLP=634(1998)115; RCTS=(C(P,ANTIP)X, 27AL(P,ANTIP)X, CU(P,ANTIP)X, PB(P,ANTIP)X, C(D,ANTIP)X, 27AL(D,ANTIP)X, CU(D,ANTIP)X, PB(D,ANTIP)X, C(ALPHA,ANTIP)X, 27AL(ALPHA,ANTIP)X, CU(ALPHA,ANTIP)X, C(P,KP)X, 27AL(P,KP)X, CU(P,KP)X, PB(P,KP)X, C(D,KP)X, 27AL(D,KP)X, CU(D,KP)X, PB(D,KP)X, C(ALPHA,KP)X, 27AL(ALPHA,KP)X, CU(ALPHA,KP)X, C(P,KN)X, 27AL(P,KN)X, CU(P,KN)X, PB(P,KN)X, C(D,KN)X, 27AL(D,KN)X, CU(D,KN)X, PB(D,KN)X, C(ALPHA,KN)X, 27AL(ALPHA,KN)X, CU(ALPHA,KN)X, C(P,PIP)X, 27AL(P,PIP)X, CU(P,PIP)X, PB(P,PIP)X, C(D,PIP)X, 27AL(D,PIP)X, CU(D,PIP)X, PB(D,PIP)X, C(ALPHA,PIP)X, 27AL(ALPHA,PIP)X, CU(ALPHA,PIP)X, C(P,PIN)X, 27AL(P,PIN)X, CU(P,PIN)X, PB(P,PIN)X, C(D,PIN)X, 27AL(D,PIN)X, CU(D,PIN)X, PB(D,PIN)X, C(ALPHA,PIN)X, 27AL(ALPHA,PIN)X, CU(ALPHA,PIN)X); PHQS=MOM-DSTRN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,49; /* 2002-05-24 : Compiled, On */ /* 2003-06-27 : Altered, On. SF3 and SF4 corrected */ /* 2006-07-08 : Altered, On. Systematic uncertainties corrected */ PHQ=MOM-DSTRN; ENR=X%; CHM=ELM; PHYS-FORM=SLD; BAC=X; POL-TGT=0%; ALGN-TGT=0%; ACC=CYC'9'; /* '9' KEK-PS */ INST-ACC=2JPNKEK; POL-PRJ=0%; COINC=NO; ANT-COINC=NO; DET-SYS=(MAG,SCT'10',MWPC,CRNKOV'11'); /* '10' To perform ToF measurements */ /* '11' Lead glass Cherenkov counter to separate electrom from pions */ /* 2006-10-05 : Altered, On. Heading of data error corrected */ RCT=C(D,PIN)X; RTY=INCL; THK-TGT=6900MG/CM**2; INC-ENGY-LAB=(2.5GEV, 3.0GEV, 3.5GEV, 4.0GEV, 5.0GEV); BEAM-INTNSTY=XMA'115'; /* '115' About half of 2*10**12 particle per pulse. */ DET-PARTCL=PIN; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,49; SYS-ERR=(12%'12',10%'13',5%'14',1%'15',1%'16'); /* '12' Uncertainty in beam intensity measurement */ /* '13' Uncertainty in acceptance calculation */ /* '14' Uncertainty in correction for loss due to interaction */ /* '15' Uncertainty in correction for loss due to analytical cuts /* '16' Uncertainty in correction for decay */ THTL=5.1DEG; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-LAB MOM-EMT-LAB DSIGMA/DOMEGA/DP DELTA-DSIGMA/DOMEGA/DP'116' (GEV) (GEV/C) (MB/SR/(GEV/C)) (MB/SR/(GEV/C)) 2.5 1.0 113 +-1 2.5 1.5 30.0 +-0.1 2.5 2.0 6.44 +-0.02 3.0 1.0 129 +-1 3.0 1.5 63.3 +-0.1 3.0 2.0 18.5 +-0.1 3.0 2.5 4.95 +-0.01 3.5 1.0 189 +-1 3.5 1.5 145 +-1 3.5 2.0 50.3 +-0.1 3.5 2.5 19.1 +-0.1 4.0 1.0 201 +-1 4.0 1.5 200 +-1 4.0 2.0 84.9 +-0.1 4.0 2.5 37.0 +-0.1 5.0 1.0 265 +-1 5.0 1.5 275 +-1 5.0 2.0 183 +-1 5.0 2.5 89.8 +-0.2 \END; /*===================================================================*/ |