1984 Vol. 8, No. 4
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Abstract:
Using a very light silica aerogel sample as the o-Ps source to reduce the scattered γ rays and a high purity Ge (HPGe) γ energy spectrometer with a precise timing channel for event selection, the continuous γ ray energy spectrum from o-Ps 3γ decay ha...
Using a very light silica aerogel sample as the o-Ps source to reduce the scattered γ rays and a high purity Ge (HPGe) γ energy spectrometer with a precise timing channel for event selection, the continuous γ ray energy spectrum from o-Ps 3γ decay ha...
Abstract:
Both fast and slow components from a BaF2 scintillator made in Artifitial Crystal Institute of China have been observed. The properties such as light yield, time resolution, energy resolution, energy linearity, technical attenuation length etc have b...
Both fast and slow components from a BaF2 scintillator made in Artifitial Crystal Institute of China have been observed. The properties such as light yield, time resolution, energy resolution, energy linearity, technical attenuation length etc have b...
Abstract:
The unfolding and folding methods are generally used in the radiative corrections to the electron inelastic scatterings. In this paper, the R-function method is introduced which can be used to transfer the radiated cross section σrad to the non-radia...
The unfolding and folding methods are generally used in the radiative corrections to the electron inelastic scatterings. In this paper, the R-function method is introduced which can be used to transfer the radiated cross section σrad to the non-radia...
Abstract:
In this paper we point out that the Ernst equation can be reduced to the principal chiral model. We discuss the relations for axially symmetric SDYM and Ernst equation as well as principal chiral model. The correspondens in the Ernst equation present...
In this paper we point out that the Ernst equation can be reduced to the principal chiral model. We discuss the relations for axially symmetric SDYM and Ernst equation as well as principal chiral model. The correspondens in the Ernst equation present...
Abstract:
In this paper the coherent state which possesses a definite Abelian charge is extended to the case of possessing a definite non-Abelian charge. The SU(3) charged, hypercharged coherent states for both boson and fermion cases are constructed. In this ...
In this paper the coherent state which possesses a definite Abelian charge is extended to the case of possessing a definite non-Abelian charge. The SU(3) charged, hypercharged coherent states for both boson and fermion cases are constructed. In this ...
Abstract:
The correlated nuclear model can describe high energy hadron-nucleus scattering at large angles very well. But in many papers, the inelastic effects which may be as important as correlations are neglected. In this paper, we include double inelastic p...
The correlated nuclear model can describe high energy hadron-nucleus scattering at large angles very well. But in many papers, the inelastic effects which may be as important as correlations are neglected. In this paper, we include double inelastic p...
Abstract:
In this paper, the equivalent interactions as one meson exchange between two quarks, three quarks and four quarks are derived from the one gluon exchange transition potential Vq→qqq by using the closere approximation. One can expect that this approac...
In this paper, the equivalent interactions as one meson exchange between two quarks, three quarks and four quarks are derived from the one gluon exchange transition potential Vq→qqq by using the closere approximation. One can expect that this approac...
Abstract:
In the framework of two nucleon absorption, we analyse the nucleon spectra sollowing pion absorption by 4He for stopped pion and pions in flight at Tπ=60, 100 and 220 MeV. Two nucleon absorption mechanism agrees quantitatively with the data. Four nuc...
In the framework of two nucleon absorption, we analyse the nucleon spectra sollowing pion absorption by 4He for stopped pion and pions in flight at Tπ=60, 100 and 220 MeV. Two nucleon absorption mechanism agrees quantitatively with the data. Four nuc...
Abstract:
The vibrational-rotational band structure of the collective excitation spectrum in even-even deformed nucleus was established in previous paper. In this formulation the expression of the ground band spectrum can be written approximately in a closed f...
Abstract:
Based on an analysis of Kramers' stationary solution, by means of the analytical solution of the Fokker-Planck equation in a harmonical potential, we propose a simple model for the calculation of the fission rates. As an example we compute the time e...
Based on an analysis of Kramers' stationary solution, by means of the analytical solution of the Fokker-Planck equation in a harmonical potential, we propose a simple model for the calculation of the fission rates. As an example we compute the time e...
Abstract:
Using the GCM method and taking the coupling between collective octupolevibration and noncollective particle-hole configurations into account, the quadrupole moment Q(3－), the reduced octupole transition probability B(E3) and the variation of the tra...
Using the GCM method and taking the coupling between collective octupolevibration and noncollective particle-hole configurations into account, the quadrupole moment Q(3－), the reduced octupole transition probability B(E3) and the variation of the tra...
Abstract:
The wave equations for the channelling relativistic electron and positron are solved by W.K.B. method. Taking Moli´ere potential, the planar channelling radiation spectra of electrons are calculated. The calculations agree well with the experimental ...
The wave equations for the channelling relativistic electron and positron are solved by W.K.B. method. Taking Moli´ere potential, the planar channelling radiation spectra of electrons are calculated. The calculations agree well with the experimental ...
Abstract:
We summarize the use, circulation, construction, measurement, control and safety precuusion of the liquid hydrogen target. The volume of the liquid hydrogen target is 0.3 1. As soon as it is started it can be running without being taken care of. It c...
We summarize the use, circulation, construction, measurement, control and safety precuusion of the liquid hydrogen target. The volume of the liquid hydrogen target is 0.3 1. As soon as it is started it can be running without being taken care of. It c...
Abstract:
In heavy ion reactions, the intermediate structure phenomena show the properties of the rotation-vibration spectra of molecules. In this paper, these rotation-vibration spectra are classified by the irreducible representation of group U(5). The calcu...
In heavy ion reactions, the intermediate structure phenomena show the properties of the rotation-vibration spectra of molecules. In this paper, these rotation-vibration spectra are classified by the irreducible representation of group U(5). The calcu...
Abstract:
The exponential model of the nuclear moment of inertia proposed by P.C. Sood and A.K. Jain is improved, and a new expression for the rotational bands of an even-even nucleus is proposed. The backbending and the downbending behaviours in J vs ω2 plot ...
The exponential model of the nuclear moment of inertia proposed by P.C. Sood and A.K. Jain is improved, and a new expression for the rotational bands of an even-even nucleus is proposed. The backbending and the downbending behaviours in J vs ω2 plot ...
Abstract:
The Monte-Carlo simulation of production and transmission of photons in the prototype of end cap time of flight (scintillation) counter is described. The simulation results agree with the experimental data.
The Monte-Carlo simulation of production and transmission of photons in the prototype of end cap time of flight (scintillation) counter is described. The simulation results agree with the experimental data.
Abstract:
Using the harmonic oscillator wave function with D-wave component to describe the niternal wave function of deuteron, a analytic solution in closed form the p-D high energy elastic scattering amplitude is derived. The calculated differential cross se...
Using the harmonic oscillator wave function with D-wave component to describe the niternal wave function of deuteron, a analytic solution in closed form the p-D high energy elastic scattering amplitude is derived. The calculated differential cross se...
Abstract:
Energy spectrum of cosmic rays ranging from 6×1014 to 5×1016eV is studied. The work is done automatically by employing a computer as well as fast and efficient electronics. The results of the experiment show that: The integral spectrum of the primary...
Energy spectrum of cosmic rays ranging from 6×1014 to 5×1016eV is studied. The work is done automatically by employing a computer as well as fast and efficient electronics. The results of the experiment show that: The integral spectrum of the primary...
Abstract:
Both the symmetrical anomaly and the unsymmetrical anomaly are derived from an effective Lagrangian recently constructed on the basis of Chern-Simons topological invariants.
Both the symmetrical anomaly and the unsymmetrical anomaly are derived from an effective Lagrangian recently constructed on the basis of Chern-Simons topological invariants.
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