1992 Vol. 16, No. 9
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Abstract:
The Beijing Spectrometer (BES),as a general purpose magnetic spectrometer working at the Beijing Electron Positron Collider (BEPC).consists of several subdetectors.It is used for reconstruction of the exculusive final states from e+e－ interaction and...
The Beijing Spectrometer (BES),as a general purpose magnetic spectrometer working at the Beijing Electron Positron Collider (BEPC).consists of several subdetectors.It is used for reconstruction of the exculusive final states from e+e－ interaction and...
Abstract:
The generalized coagulation equations with fragmentation mechanism as a geodesic equation for motion of a representative point were formulated in an infinite-dimensional space endowed with an affine connection by a geometrical approach.
The generalized coagulation equations with fragmentation mechanism as a geodesic equation for motion of a representative point were formulated in an infinite-dimensional space endowed with an affine connection by a geometrical approach.
Abstract:
The strong CP violation,the PQ mechanism and the axions in the standard model are discussed.The model of techniaxion is established.The mass and the lifetime of techniaxion,the coupling for techniaxion with other matters are obtained.The constraints ...
The strong CP violation,the PQ mechanism and the axions in the standard model are discussed.The model of techniaxion is established.The mass and the lifetime of techniaxion,the coupling for techniaxion with other matters are obtained.The constraints ...
Abstract:
Based on the Beckmann method,a new quantitative method for the study of multi-particle azimuthal correlations is proposed.Collisions of 1.2A GeV Ar+KC1 in the LBL streamer chamber are analyzed with this new method and the original Beckmenn method,res...
Based on the Beckmann method,a new quantitative method for the study of multi-particle azimuthal correlations is proposed.Collisions of 1.2A GeV Ar+KC1 in the LBL streamer chamber are analyzed with this new method and the original Beckmenn method,res...
Abstract:
In this paper the structure of the wide resonance θ(1720) produced in J/ψ radiative decay is studied by using moment analysis.Since the f'2(1525) and θ(1720) resonances overlap in this mass region,two three-states coupling structure modes 2++(f'2(152...
In this paper the structure of the wide resonance θ(1720) produced in J/ψ radiative decay is studied by using moment analysis.Since the f'2(1525) and θ(1720) resonances overlap in this mass region,two three-states coupling structure modes 2++(f'2(152...
Abstract:
It is proposed that the average radius of the Source obtained from twopion interferometry analyses is a suitable quantity to describe the spatial size of the source by comparing the correlation functions from different source density destributions di...
It is proposed that the average radius of the Source obtained from twopion interferometry analyses is a suitable quantity to describe the spatial size of the source by comparing the correlation functions from different source density destributions di...
Abstract:
The α-particle structure models for 12C and 16O are tested by means of proton total cross sections and forward scattering amplitudes in the intermediate energy range.The total cross section for 4He is discussed.The results provide a support to the α-...
The α-particle structure models for 12C and 16O are tested by means of proton total cross sections and forward scattering amplitudes in the intermediate energy range.The total cross section for 4He is discussed.The results provide a support to the α-...
Fission-Fragment Angular Distributions for the 16O+238U Near-and Sub-Barrier Fusion-Fission Reaction
Abstract:
Fission cross sections and angular distributions have been measured for the 16O+238U reaction at bombarding energies from 73.7 to 93.7 MeV.The fission excitation function is well reproduced on the basis of Wong model.The fission-fragment angular dist...
Fission cross sections and angular distributions have been measured for the 16O+238U reaction at bombarding energies from 73.7 to 93.7 MeV.The fission excitation function is well reproduced on the basis of Wong model.The fission-fragment angular dist...
Abstract:
In this paper,the irreducible representations and Wigner coefficients of SLq(3) have been obtained.The generators of SLq(3) satisfying the serre relations are considered as 1/2 rank tensor——like of SLq(2).Their reduced matrix elements can be calculat...
In this paper,the irreducible representations and Wigner coefficients of SLq(3) have been obtained.The generators of SLq(3) satisfying the serre relations are considered as 1/2 rank tensor——like of SLq(2).Their reduced matrix elements can be calculat...
Abstract:
By means of introducing a nonlinear transformation,the n-body correlation Green's functions G(n),c are separated out from the n-body Green's functions G(n) A set of non-relativistic dynamic equations for the time evolution of G(n),c is derived which ...
By means of introducing a nonlinear transformation,the n-body correlation Green's functions G(n),c are separated out from the n-body Green's functions G(n) A set of non-relativistic dynamic equations for the time evolution of G(n),c is derived which ...
Abstract:
The dynamical aspects of IBM-Ⅱ in the continuous variables representation are investigated by using the Dynamical Group Representation-Generator.Coordinate Method.The transformation from the degrees of freedom of proton and neutron to those of on-pha...
The dynamical aspects of IBM-Ⅱ in the continuous variables representation are investigated by using the Dynamical Group Representation-Generator.Coordinate Method.The transformation from the degrees of freedom of proton and neutron to those of on-pha...
Abstract:
The extended Thomas-Fermi Approximation (ETF) is applied to study the microscopic foundation of the continuous medium model of the nucleus and macroscopic model based on nucleon-nucleon interaction is obtained.With Skyrme forces,it has been studied t...
The extended Thomas-Fermi Approximation (ETF) is applied to study the microscopic foundation of the continuous medium model of the nucleus and macroscopic model based on nucleon-nucleon interaction is obtained.With Skyrme forces,it has been studied t...
Abstract:
In this paper we investigate the polarization structure of the process J/ψ→ωf2(1270) and f2(1270)→ππ by using the generalized moment analysis method and give some relations of moments to represent four helicity amplitude ratios of the process.
In this paper we investigate the polarization structure of the process J/ψ→ωf2(1270) and f2(1270)→ππ by using the generalized moment analysis method and give some relations of moments to represent four helicity amplitude ratios of the process.
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