1992 Vol. 16, No. S1
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Abstract:
The L3 calorimeter beam test data are analyzed. An e/π separation scheme including "key cut" and "△ cut" is suggested. It is shown that by using this scheme, in the energy range 4-20 GeV, e/π separation is better than 93.7%,
The L3 calorimeter beam test data are analyzed. An e/π separation scheme including "key cut" and "△ cut" is suggested. It is shown that by using this scheme, in the energy range 4-20 GeV, e/π separation is better than 93.7%,
Abstract:
We describe a fitting method of the Z0 line shape, discuss the radiative corrections for calculating the theoretical cross sections of e+e- → ff at Z0 resonance, and compare the results from different programs. The systematic errors are taken into ac...
We describe a fitting method of the Z0 line shape, discuss the radiative corrections for calculating the theoretical cross sections of e+e- → ff at Z0 resonance, and compare the results from different programs. The systematic errors are taken into ac...
Abstract:
The coincidence between projectile-like fragments and a-particles emitted from 20Ne (14.7 MeV/u,192 MeV/u) + 58Ni reactions has been studied. The coincident events were caused by the sequential decay of the excited primary fragments and by the "uncor...
The coincidence between projectile-like fragments and a-particles emitted from 20Ne (14.7 MeV/u,192 MeV/u) + 58Ni reactions has been studied. The coincident events were caused by the sequential decay of the excited primary fragments and by the "uncor...
Abstract:
In this paper, the axisymmetricai self-sustaining magnetically confined electron clouds are studied by means of the numerical computational method on the basis of the fluid theory./The electron density distribution, electric potential distribution, d...
In this paper, the axisymmetricai self-sustaining magnetically confined electron clouds are studied by means of the numerical computational method on the basis of the fluid theory./The electron density distribution, electric potential distribution, d...
Abstract:
For the purpose of data analysis with BES (Beijing Spectrometer), some new relations, which can be used to search for the 1-+ exotic state in J/ψ → ωX,X → KKx, are obtained. How to search for the 1-+ exotic state in the three-step two-body hadronic d...
For the purpose of data analysis with BES (Beijing Spectrometer), some new relations, which can be used to search for the 1-+ exotic state in J/ψ → ωX,X → KKx, are obtained. How to search for the 1-+ exotic state in the three-step two-body hadronic d...
Abstract:
This paper presents the helicity formalism of the angular distribution for the cascade decay processes e+ + e- → J/ψ → V + X,X → P1 + Y,Y → P2 + P3 (V represents a vector meson and Pi(i=1,2,3) are the pseudoscalar mesons). It provides the theoretical...
This paper presents the helicity formalism of the angular distribution for the cascade decay processes e+ + e- → J/ψ → V + X,X → P1 + Y,Y → P2 + P3 (V represents a vector meson and Pi(i=1,2,3) are the pseudoscalar mesons). It provides the theoretical...
Abstract:
This paper shows that the topologically additional action appearing in the Heisenberg spin model can be understood as superposition of Berry's phase for the single spins in an average fields of many particles. In the case of low temperature, using th...
This paper shows that the topologically additional action appearing in the Heisenberg spin model can be understood as superposition of Berry's phase for the single spins in an average fields of many particles. In the case of low temperature, using th...
Abstract:
According to Jimbo's theorem, the method for constructing the spectrum-dependent solutions to the Yang-Baxter equation is based on the existence of the representation matrix of e0 that corresponds to the lowest negative root, in an irreducible repres...
According to Jimbo's theorem, the method for constructing the spectrum-dependent solutions to the Yang-Baxter equation is based on the existence of the representation matrix of e0 that corresponds to the lowest negative root, in an irreducible repres...
Abstract:
In high energy reactions the production of spin (3/2)+ baryons is strongly suppressed in comparison with that of (1/2)+ baryons. I show that the observed λ broken SUf(3) symmetry in multihadron production is consistent with stochastic quark arrangeme...
In high energy reactions the production of spin (3/2)+ baryons is strongly suppressed in comparison with that of (1/2)+ baryons. I show that the observed λ broken SUf(3) symmetry in multihadron production is consistent with stochastic quark arrangeme...
Abstract:
A relativistic microscopic nucleon-nucleus optical potential is derived from the relativistic Brueckner-Bethe-Goldstone (RBBG) equation. The complex effective mass of a nucleon is determined by a fit to the scattering data for P-40Ca at 200 MeV, The ...
A relativistic microscopic nucleon-nucleus optical potential is derived from the relativistic Brueckner-Bethe-Goldstone (RBBG) equation. The complex effective mass of a nucleon is determined by a fit to the scattering data for P-40Ca at 200 MeV, The ...
Abstract:
Two different types of normalization of factorial moment are analyzed in detail. It is found that in the case of fixed multiplicity and of intermittency degree independent of multiplicity, the intermittency indices obtained from these two kinds of no...
Two different types of normalization of factorial moment are analyzed in detail. It is found that in the case of fixed multiplicity and of intermittency degree independent of multiplicity, the intermittency indices obtained from these two kinds of no...
Abstract:
By using the color confinement potential which includes the color screening effect obtained from the lattice gauge calculation, we studied the structure of the baryons, and calculated the baryon spectra and the square root radii of the corresponding ...
By using the color confinement potential which includes the color screening effect obtained from the lattice gauge calculation, we studied the structure of the baryons, and calculated the baryon spectra and the square root radii of the corresponding ...
Abstract:
A model for describing the target fragmentation in high energy hadron-nucleus collisions based on the intranuclear cascade is suggested. An analysis of the correlation between grey and black particles shows that the saturation of the mean number of g...
A model for describing the target fragmentation in high energy hadron-nucleus collisions based on the intranuclear cascade is suggested. An analysis of the correlation between grey and black particles shows that the saturation of the mean number of g...
Abstract:
A formula is derived for the density of particle-hoie states in the equidistant spacing model. The formula gives full consideration to the effect of the Pauli exclusion principle. The pairing effect and two energy constrains are considered. The formu...
A formula is derived for the density of particle-hoie states in the equidistant spacing model. The formula gives full consideration to the effect of the Pauli exclusion principle. The pairing effect and two energy constrains are considered. The formu...
ISSN 1674-1137 CN 11-5641/O4
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