/*===================================================================*/ /* NRDF D1803 Data No.1 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,1; D#=D1803; TITLE=/Study of resonance states in 12N using a radioactive ion beam of 11C/; PURPOSE=/The authors report the first experimental result on the elastic resonance scattering of 11C+p using the RI beam of 11C./; ATH=(T.TERANISHI'1', S.KUBONO'1', S.SHIMOURA'1', M.NOTANI'1', Y.YANAGISAWA'2', S.MICHIMASA'1', K.UE'1', H.IWASAKI'1', M.KUROKAWA'1', Y.SATOU'1', T.MORIKAWA'3', A.SAITO'4', H.BABA'4', J.H.LEE'5', C.S.LEE'5', ZS.FULOP'6', S.KATO'7'); INST-ATH=(2JPNTOK'1', 2JPNIPC'2', 2JPNKYU'3', 2JPNYOK'4', 3KORKOR'5', 3HUNDEB'6', 2JPNYMG'7'); /* '1' Center for Nuclear Study (CNS) */ /* '3' Department of Physics */ /* '4' Department of Physics */ /* '5' Department of Physics, Chun-Ang University, Seoul */ /* '7' Department of Physics */ REF=PL/B; VLP=556(2003)27; RCTS=1H(11C,11C)1H; PHQS=(EXC-FUNCT, PTY); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,1; /* 2004-08-06 : Compiled */ ENR=NAT; CHM=CH2'8'; /* '8' Data with carbon target was also taken in a separate run to evaluate the background contribution from the reactions of 11C with C atoms in the (CH2)n target. */ PHYS-FORM=SLD; THK-TGT=XMG/CM**2'9'; /* '9' Thickness of (CH2)n target is 8.0 mg/cm2 and C target is 10.7 mg/cm2 */ POL-TGT=0%; ALGN-TGT=0%; ACC=(CYC'10',PRJFS'11'); /* '10' Isochronous cyclotron, Primary 10B beam with 7.8 MeV/A /* '11' To produce 11C secondary beam by the 3He(10B,12N*)n reaction, where the 11C particles were emitted from the unbound levels in 12N. */ INST-ACC=(2JPNIPC'10',2JPNIPC'11'); INC-ENGY-CM=0.3125[3.0375MEV'12'; /* '12' Excitation function obtained by thick target method */ BEAM-INTNSTY=17000PPS; POL-PRJ=0%; DET-PARTCL=P; COINC=NO; ANT-COINC=NO; DET-SYS=(PPAC'13',SI'14',TOF'15',EDE'16'); /* '13' 2 parallel plate avalanche counters 1) to identify proton usign ToF information and 2) to determin scattering angle with a resolution of 0.6 deg (FWHM) */ /* '14' To identify proton using E-Delta E infomation */ /* '15' Particle identification, measured by 2 PPACs and Delta-E detector */ /* '16' Particle identification */ /* Experimental Method: - Time-of-flight (Particle identification, measured by 2 PPACs and Delta-E detector) - Particle identification by 'E/Delta E' measurement (Particle identification) - Thick-target method (11C beam particles were fully stopped in the (CH2)n target and energies of recoil protons, coming out from a thick target, are measured at a forward angle in the laboratory frame and the converted to the center-of-mass energies of scattering. Due to the thick target, a wide range of the excitation function for the elastic scattering can be measured with a beam of fixed energy. See S. Kubono, Nucl. Phys. A693(2001)221 for detail.) RCT=1H(11C,11C)1H; RTY=ELA-SCATT; PHQ=EXC-FUNCT; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,1; RSD=1H; THTC=180DEG; DELTA-INC-ENGY-CM=20KEV'17'; /* '17' Systematic error of center of mass energy mainly due to those from beam energy and emitted proton energy */ DELTA-INC-ENGY-CM=50KEV'18'; /* '18' Resolution of center of mass energy */ DELTA-DSIGMA/DOMEGA=4%'19'; /* '19' Mainly due to that in detector solid angle */ DELTA-THTL=0.6DEG; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-CM DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'20' (MEV) (MB/SR) (MB/SR) 0.3125 434.1 +-23.5 0.3375 371.2 +-21.4 0.3625 321.8 +-18.9 0.3875 294.8 +-17.9 0.4125 228.9 +-16.5 0.4375 193.8 +-15.5 0.4625 163.7 +-13.7 0.4875 141.4 +-13.3 0.5125 129.2 +-12.8 0.5375 163.8 +-14.5 0.5625 272.7 +-16.7 0.5875 359.4 +-19.6 0.6125 380.2 +-20.2 0.6375 410.4 +-21.1 0.6625 337.6 +-19.0 0.6875 269.2 +-16.6 0.7125 261.0 +-16.3 0.8625 151.8 +-13.2 0.8875 182.7 +-14.3 0.9125 165.8 +-14.3 0.9375 158.5 +-14.1 0.9625 135.9 +-14.2 0.9875 153.0 +-13.8 1.0125 171.8 +-14.3 1.0375 138.0 +-13.3 1.0625 179.4 +-13.7 1.0875 137.7 +-12.7 1.1125 127.8 +-13.7 1.1375 178.8 +-14.2 1.1625 167.3 +-14.2 1.1875 184.3 +-13.7 1.2125 163.4 +-13.7 1.2375 150.6 +-13.0 1.2625 153.9 +-13.3 1.2875 171.0 +-13.5 1.3125 170.5 +-13.3 1.3375 176.5 +-13.1 1.3625 176.7 +-13.1 1.3875 154.0 +-13.8 1.4125 164.1 +-13.6 1.4375 161.8 +-13.1 1.4625 159.3 +-13.6 1.4875 148.1 +-13.7 1.5125 185.9 +-14.0 1.5375 177.4 +-13.7 1.5625 154.3 +-13.4 1.5875 152.0 +-13.8 1.6125 154.2 +-13.8 1.6375 154.9 +-13.6 1.6625 153.2 +-13.4 1.6875 157.6 +-12.8 1.7125 145.0 +-13.0 1.7375 156.6 +-13.1 1.7625 140.9 +-12.6 1.7875 141.4 +-12.6 1.8125 124.7 +-11.6 1.8375 142.8 +-12.6 1.8625 152.8 +-13.2 1.8875 185.9 +-12.4 1.9125 169.9 +-13.6 1.9375 173.0 +-12.7 1.9625 150.2 +-12.9 1.9875 187.8 +-12.7 2.0125 186.5 +-12.8 2.0375 160.9 +-12.3 2.0625 155.8 +-11.8 2.0875 171.1 +-12.0 2.1125 182.0 +-12.2 2.1375 171.2 +-12.4 2.1625 195.8 +-12.0 2.1875 172.7 +-11.9 2.2125 200.0 +-12.2 2.2375 191.1 +-11.3 2.2625 181.7 +-11.5 2.2875 247.8 +-12.9 2.3125 212.8 +-12.0 2.3375 232.0 +-12.0 2.3625 235.6 +-12.4 2.3875 277.3 +-13.4 2.4125 297.7 +-13.2 2.4375 295.0 +-13.8 2.4625 295.0 +-13.4 2.4875 313.2 +-13.5 2.5125 283.5 +-13.3 2.5375 252.3 +-12.4 2.5625 219.1 +-11.5 2.5875 188.8 +-10.7 2.6125 165.5 +-10.1 2.6375 156.6 +-9.9 2.6625 121.7 +-8.6 2.6875 100.3 +-8.5 2.7125 120.5 +-8.8 2.7375 89.1 +-8.3 2.7625 88.1 +-7.8 2.7875 89.6 +-7.2 2.8125 72.4 +-7.2 2.8375 76.5 +-6.8 2.8625 60.9 +-7.1 2.8875 71.9 +-6.7 2.9125 71.5 +-6.7 2.9375 80.4 +-7.0 2.9625 92.1 +-7.6 2.9875 95.9 +-7.4 3.0125 106.8 +-7.9 3.0375 118.1 +-8.2 \END; /*===================================================================*/ |