1998 Vol. 22, No. 11
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Abstract:
We have analysed the e+e－ collision data collected with Beijing Spectrometer at the center-of-mass energy 4.03 GeV and selected e+e－→τ±τ+→e±X+v's events, X± required as μ±、π± and ρ±. From fitting electron energy spectrum in τ→ev's decay, the measurem...
We have analysed the e+e－ collision data collected with Beijing Spectrometer at the center-of-mass energy 4.03 GeV and selected e+e－→τ±τ+→e±X+v's events, X± required as μ±、π± and ρ±. From fitting electron energy spectrum in τ→ev's decay, the measurem...
Abstract:
With an on-line, gas-thermochromatographic Hg element separation as well as a special detection technique, the independent cross sections of the radioactive Hg-isotopes produced from a 600MeV 18O +natPb(thick target) reaction system were determined. ...
With an on-line, gas-thermochromatographic Hg element separation as well as a special detection technique, the independent cross sections of the radioactive Hg-isotopes produced from a 600MeV 18O +natPb(thick target) reaction system were determined. ...
Abstract:
For the 10 inch diam. single-sphere rem-meter and the standard A-B rem-meter placed outside the concrete shielding wall, correction factors for measuring the high energy neutron dose equivalent produced by intermediate energy heavy ion reaction have ...
For the 10 inch diam. single-sphere rem-meter and the standard A-B rem-meter placed outside the concrete shielding wall, correction factors for measuring the high energy neutron dose equivalent produced by intermediate energy heavy ion reaction have ...
Abstract:
This paper describes the algorithm of the non-numerical pattern recognition used in the VC of BES-Ⅱ. The code is good to provide the spacial resolution and the effeciency of the track found by M.C. data and experimental data.
This paper describes the algorithm of the non-numerical pattern recognition used in the VC of BES-Ⅱ. The code is good to provide the spacial resolution and the effeciency of the track found by M.C. data and experimental data.
Abstract:
The τ polarization asymmetry in τ→a1v→π±π0 π0v decay at Z0 peak is measured using data collected by L3 detector at LEP in 1992 and 1993, Apol=－0.239±0.126±0.100, where the first error is statistical and the second systematic. And the effective electr...
The τ polarization asymmetry in τ→a1v→π±π0 π0v decay at Z0 peak is measured using data collected by L3 detector at LEP in 1992 and 1993, Apol=－0.239±0.126±0.100, where the first error is statistical and the second systematic. And the effective electr...
Abstract:
Assuming Higgs Assuming coupling to be the only origin of parity non-conservation, an SU(3)C×SU(2)I×U(1)Y theory of composite leptons is established in the Scheme of three generations and supersymmetry.
Assuming Higgs Assuming coupling to be the only origin of parity non-conservation, an SU(3)C×SU(2)I×U(1)Y theory of composite leptons is established in the Scheme of three generations and supersymmetry.
Abstract:
The kinetic equations for a quark-gluon plasma (QGP) are effectively expanded in terms of fluctuating field using weak turbulent theory. The nonlinear response equation of QGP is derived.
The kinetic equations for a quark-gluon plasma (QGP) are effectively expanded in terms of fluctuating field using weak turbulent theory. The nonlinear response equation of QGP is derived.
Abstract:
A three-dimensional Langevin equation with covariant form is applied to describe the asymmetric nuclear fission. The calculations for kinetic energy and mass distribution of fission-fragments are performed in terms of the {c,h, α} parameterization,an...
A three-dimensional Langevin equation with covariant form is applied to describe the asymmetric nuclear fission. The calculations for kinetic energy and mass distribution of fission-fragments are performed in terms of the {c,h, α} parameterization,an...
Abstract:
Taking the modified surface delta interaction (MSDI) and using a spherical shell model basis set, we carry out the deformed Hartree-Fock (HF) calculation for the even-even nuclei 46Ti and 48Cr in the fp shell, and construct the deformed HF intrinsic ...
Taking the modified surface delta interaction (MSDI) and using a spherical shell model basis set, we carry out the deformed Hartree-Fock (HF) calculation for the even-even nuclei 46Ti and 48Cr in the fp shell, and construct the deformed HF intrinsic ...
Abstract:
A detailed analysis of superdeformed triaxial bands is made with the particle-rotor model. The influence of configuration admixtures between different j subshells on such systems is investigated. In order to identify the superdeformed triaxial bands ...
A detailed analysis of superdeformed triaxial bands is made with the particle-rotor model. The influence of configuration admixtures between different j subshells on such systems is investigated. In order to identify the superdeformed triaxial bands ...
Abstract:
Based on an isospin-dependent quantum molecular dynanics model, the neutron and proton density calculated from Skyrme-Hartree-Fock theory, along with the neutron and proton Fermi momenta calculated from Fermi gas model, are used to sample stable init...
Based on an isospin-dependent quantum molecular dynanics model, the neutron and proton density calculated from Skyrme-Hartree-Fock theory, along with the neutron and proton Fermi momenta calculated from Fermi gas model, are used to sample stable init...
Abstract:
Preliminary design of a dedicated proton therapy linac (S-band) is described.The short beam pulse width and high repetition rate make the linac similar to the electron linacs now used for cancer therapy. This linac consists of ion source, RFQ,DTL, SC...
Preliminary design of a dedicated proton therapy linac (S-band) is described.The short beam pulse width and high repetition rate make the linac similar to the electron linacs now used for cancer therapy. This linac consists of ion source, RFQ,DTL, SC...
Abstract:
The conditions for ion trapping are studied in the case of uniformly distributed electron bunches and bunch trains in storage rings based on the linear theory. The formulas of the threshold current for ion trapping are derived by means of the Twiss p...
The conditions for ion trapping are studied in the case of uniformly distributed electron bunches and bunch trains in storage rings based on the linear theory. The formulas of the threshold current for ion trapping are derived by means of the Twiss p...
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