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 /* NRDF D1797 Data No.4                                              */
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 /* Bibliography                                                      */
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 \\BIB,4;
 D#=D1797;
 TITLE=/Isobaric analog state of 14Be/;
 PURPOSE=/To measure the Isobaric Analog State (IAS) of the
          neutron-dripline nucleus 14Be for the first time in a
          charge-exchange reactino 14Be(p,n)14B* in inverse kinematics
          at E(14Be) = 74 AMeV./;
 ATH=(S.TAKEUCHI'1', S.SHIMOURA'2', T.MOTOBAYASHI'1', H.AKIYOSHI'3',
      Y.ANDO'1', N.AOI'4', ZS.FULOP'5', T.GOMI'1', Y.HIGURASHI'1',
      M.HIRAI'6', N.IWASA'7', H.IWASAKI'2', Y.IWATA'6',
      H.KOBAYASHI'1', M.KUROKAWA'2', Z.LIU'8', T.MINEMURA'3',
      S.OZAWA'3', H.SAKURAI'4', M.SERATA'1', T.TERANISHI'2',
      K.YAMADA'1', Y.YANAGISAWA'3', M.ISHIHARA'3');
 INST-ATH=(2JPNYOK'1', 2JPNTOK'2', 2JPNIPC'3', 2JPNTOK'4', 3HUNDEB'5',
           2JPNIRS'6', 2JPNTOH'7', 3CPRIMP'8');
      /* '1' Department of Physics */
      /* '2' Center for Nuclear Study (CNS) */
      /* '4' Department of Physics */
      /* '7' Department of Physics */
 REF=PL/B;
 VLP=515(2001)255;
 RCTS=(P(14BE,14B)N, D(14BE,14B)X);
 PHQS=(ENGY-SPEC, ANGL-DSTRN, X'9', X'10', COULOMB-DISP-ENGY'11');
 /* '9' Energy and width of the peak of the decay energy spectra of
    the 12Be + p + n channel for the (p,n) reaction */
 /* '10' Excitation energy of the IAS */
 /* '11' Coulomb displacement energy for the pair of 14Be and its
    IAS. */
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 /* Experimental Conditions                                           */
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 \\EXP,4;
 /* 2003-07-09 : Compiled */
 ENR=X%;
 PHYS-FORM=SLD;
 BAC=X;
 POL-TGT=0%;
 ALGN-TGT=0%;
 ACC=(CYC'12',PRJFS'13');
 /* '12' Primary beam of 100 AMeV 18O on a 1110 mg/cm**2 thic 9Be
        target */
 /* '13' Secondary beam of 14Be selected by the RIKEN Projectile
        Fragment Separator (RIPS) [T.Kubo et al., Nucl. Instrum. Methods
        B70(1992)309]. */
 INST-ACC=(2JPNIPC'12',2JPNIPC'13');
 INC-ENGY-LAB=74MEV/A;
 ERS-PRJ=8MEV/A;
 BEAM-INTNSTY=1e4PPS'14';
 /* '14' Typical intensity of the 14Be beam with a purity of
         around 80% */
 POL-PRJ=0%;
 DET-PARTCL=(P,N,12BE);
 COINC=(P,N,12BE);
 ANT-COINC=NO;
 DET-SYS=(PLST-SCT'15',TOF'16');
 /* '15' To detect decay particles from 14B*. Resolutions of TOF
         were about 1.2% (FWHM) for charged particles and about
         1.5%(FWHM) for neutrons at the energies of 74 AMeV. */
 /* '16' To determine velocities of the decay particles */
 ERS-DET=0.15MEV'17';
 /* '17' Resolution of decay energy at 0.3 MeV */
 /* Experimental Method:
    - Time-of-flight (To determine velocities of the decay particles)
 /* Analysis:
    - Invariant mass method
 RCT=P(14BE,14B)N;
 PHQ=X'42';
 /* '42' Energy and width of the peak of the decay energy spectra
         of the 12Be + p + n channel for the (p,n) reaction */
 CHM=CH2'43';
 /* '43' (CH2)n and C target are used, C target was used to
         subtract the contributions of carbon nuclei in the (CH2)n
         target. */
 THK-TGT=XMG/CM**2'44';
 /* '44' 187 and 152 mg/cm2 for (CH2)n and C target, respectively.
 /* Analysis:
    - In order to deduce the resonance energy and natural width of
      the IAS, the peak of decay energy spectra was fitted with a
      Gaussian functio and a background with a shape of a three-body
      phase space (see Fig.2(c) of reference). The E(d) resolution
      detector acceptance and angular distribution of 14B* were taken
      into account in the fitting procedure.
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 /* Descriptive Parameters                                            */
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 \\DATA,4;
 INC-ENGY-LAB=74MEV/A;
 EMT-1=12BE;
 RSD=N;
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 /* Data Table                                                        */
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 \DATA;
 ENGY'45' DELTA-ENGY'45' WDTH'46' DELTA-WDTH'46'
 (MEV) (MEV) (MEV) (MEV)
 0.29 +-0.02 0.11 +-0.05
 \END;
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