/*===================================================================*/ /* NRDF D1802 Data No.7 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,7; D#=D1802; TITLE=/ Determination of the subthreshold state contribution in 13C(alpha,n)16O, the main neutron-source reaction for the s process /; ATH=(S.KUBONO'1', K.ABE'2', S.KATO'2', T.TERANISHI'1', M.KUROKAWA'1', X.LIU'1', N.IMAI'3', K.KUMAGAI'4', P.STRASSER'5', M.H.TANAKA'6', Y.FUCHI'6', C.S.LEE'7', Y.K.KWON'7', L.LEE'7', J.H.HA'7', Y.K.KIM'7'); INST-ATH=(2JPNTOK'1', 2JPNYMG'2', 2JPNTOK'3', 2JPNTOH'4', 2JPNIPC'5', 2JPNKEK'6', 3KORCHA'7'); /* '1' Center for Nuclear Study (CNS) */ /* '2' Department of Physics */ /* '3' Department of Physics */ /* '4' Department of Physics */ /* '6' The Institute of Particle and Nuclear Study */ /* '7' Department of Physics */ REF=(PRL'8'); VLP=(90(2003)062501'8'); /* Secondary reference - NP/A, 718(2003)189 (S.Kato et al., Proc. of the 7th International Symposium on Nuclei in the Cosmos (NIC7)) RCTS=(13C(6LI,D)17O, 13C(6LI,6LI)13C); PHQS=(ANGL-DSTRN, OPT-POTL-PARA); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,7; /* 2004-08-06 : Compiled, St + Am */ /* 2006-10-04 : Altered, On. Reference (NIC7) added */ /* Additional results shown but not compiled - Reaction rate (13C(alpha,n)16O reaction rate given for T9=0.01-4.0) ENR=[99.9%; CHM=ELM; PHYS-FORM=SLD; THK-TGT=(0.140MG/CM**2,0.300MG/CM**2,0.520MG/CM**2)'9'; /* '9' Mylar foil of 3-micrometer also used */ BAC=SELF; POL-TGT=0%; ALGN-TGT=0%; ACC=CYC'10'; /* '10' SF cyclotron */ INST-ACC=2JPNTOK'11'; /* '11' Center for Nuclear Study */ INC-ENGY-LAB=60MEV; POL-PRJ=0%; COINC=NO; ANT-COINC=NO; DET-SYS=(MAG'12',PROP-CNTR'13',SCT'14',EDE'15',TOF'16'); /* '12' To analyze momentum of reaction product [S. Kato et al., Nucl. Instrum. Methods Phys. Res. 154, 19 (1978)]. Solid angle is 5 msr. */ /* '13' Position sensitive. To detect reaction product [M. H. Tanaka et al., Nucl. Instrum. Methods Phys. Res. 195, 509 (1982)] */ /* '14' Plastic Scintillator. To detect reaction products, also used for ToF signals. */ /* '15' Particle identification */ /* '16' Particle identification */ ERS-DET=[170KEV; ANL=DWBA'17'; /* '17' carried out by a computer code, TWOFNR [M. Igarashi, private communication]. */ /* Experimental Method: - Particle identification by 'E/Delta E' measurement (Particle identification) - Time-of-flight (Particle identification) RCT=13C(6LI,6LI)13C; RTY=ELA-SCATT; PHQ=OPT-POTL-PARA; DET-PARTCL=6LI; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,7; INC-ENGY-LAB=60MEV; POTL-FORM=/ Uc(X) -V*f(X,Rr,Ar) -i*W*f(X,Riv,Aiv) : Uniform charge of radius Rc*A**(1/3) : f(X,R,A)=1/(1+exp((X-R*A**(1/3))/A) /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; V RR AR WV RIV AIV RC (MEV) (FM) (FM) (MEV) (FM) (FM) (FM) 135.1 1.428 0.750 11.0 2.161 0.680 1.3 \END; /*===================================================================*/ |