1984 Vol. 8, No. 6
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Abstract:
Some performances of an adjustable field drift chamber operated in the self-quenching streamer mode (SQS) have Been measured. The counting rate plateaus as a function of threshold and gas mixture, the efficiency, the spacil resolution, the relationsh...
Some performances of an adjustable field drift chamber operated in the self-quenching streamer mode (SQS) have Been measured. The counting rate plateaus as a function of threshold and gas mixture, the efficiency, the spacil resolution, the relationsh...
Abstract:
For the purpose of nucleus-nucleus interaction detection, a detector consisted of CR-39 plastic track detector sheets interlayered with aluminium plates was launched to 37 km height by balloon near Beijing and exposured in the high energy nucleus bea...
For the purpose of nucleus-nucleus interaction detection, a detector consisted of CR-39 plastic track detector sheets interlayered with aluminium plates was launched to 37 km height by balloon near Beijing and exposured in the high energy nucleus bea...
Abstract:
A systematic analysis of SO(2n)×S GUT models with discrete symmetry S is presented. It is found that SO(14)×S and SO(16)×S are the satisfactory gauge groups of flavor unification. In addition, SO(14)×S and SO(16)×S models are discussed in detail. Bot...
Abstract:
The general formulation and Feynman rules of strong coupling expansion in σ model are derived. Then the reduction of strong couplig expansion formulation is investigated. Finally, using Pade-type extrapolation technique, a useful research about deali...
The general formulation and Feynman rules of strong coupling expansion in σ model are derived. Then the reduction of strong couplig expansion formulation is investigated. Finally, using Pade-type extrapolation technique, a useful research about deali...
Abstract:
The effect of Synchrotron radiation on the transversal polarization of electrons is investigated. The higher order quantum corrections on spin-flip radiation probability due to the recoil of photon are derived by two approaches. The result reveals a ...
The effect of Synchrotron radiation on the transversal polarization of electrons is investigated. The higher order quantum corrections on spin-flip radiation probability due to the recoil of photon are derived by two approaches. The result reveals a ...
Abstract:
The Isobar model of G.E.Brown et al. for π-nucleus scattering is extended to describe the (π, N) reactions at intermediate energies. The many-body effects are treated by using a phenomenological approximation. The influences of some factors upon the ...
The Isobar model of G.E.Brown et al. for π-nucleus scattering is extended to describe the (π, N) reactions at intermediate energies. The many-body effects are treated by using a phenomenological approximation. The influences of some factors upon the ...
Abstract:
Adopting rigid projectile approximation, the elastic scattering differential cross section for α+α and α+Ca40 at high energies are calculated on the basis of Glauber's theory. The influence of different single particle density of He4 on elastic scatt...
Adopting rigid projectile approximation, the elastic scattering differential cross section for α+α and α+Ca40 at high energies are calculated on the basis of Glauber's theory. The influence of different single particle density of He4 on elastic scatt...
Abstract:
The strength of π-nucleus double charge exchange reaction is related to the spectroscopic factor of two nucleon transfer. In this paper, the relationship between the reaction amplitude and the spectroscopic factors is discussed. As an example, two ki...
The strength of π-nucleus double charge exchange reaction is related to the spectroscopic factor of two nucleon transfer. In this paper, the relationship between the reaction amplitude and the spectroscopic factors is discussed. As an example, two ki...
Abstract:
In this paper, using the property of the local isomophism between the group SO(6) and SU(4), a set of physical bases of the three particles is derived. The bases are equivalent to the hyperspherical function bases.
In this paper, using the property of the local isomophism between the group SO(6) and SU(4), a set of physical bases of the three particles is derived. The bases are equivalent to the hyperspherical function bases.
Abstract:
Assuming that the intermediate system decayes with a statistical lifetime, the general behaviour of the threefold differential cross section d3σ/dZdEdθ in the dissipative collisions of 68MeV12C+27Al and 68.6MeV12C+40Ca system are analysed in the diff...
Assuming that the intermediate system decayes with a statistical lifetime, the general behaviour of the threefold differential cross section d3σ/dZdEdθ in the dissipative collisions of 68MeV12C+27Al and 68.6MeV12C+40Ca system are analysed in the diff...
Abstract:
It is assumed that the initial exciton number n0 is statistical. The expression of the probability h(n0) for any probable n0 is given. The theoretical calculation results, including the energy spectra and the double differential cross sections, are o...
It is assumed that the initial exciton number n0 is statistical. The expression of the probability h(n0) for any probable n0 is given. The theoretical calculation results, including the energy spectra and the double differential cross sections, are o...
Abstract:
27Al and natCa target were bombarded by the Carbon beam at incident energy 69.5MeV. The reaction products were identified by ΔE-E telescope and the spectra of Li, Be, N, O elements were obtained.
The values of deformation parameter of emitted fragment...
27Al and natCa target were bombarded by the Carbon beam at incident energy 69.5MeV. The reaction products were identified by ΔE-E telescope and the spectra of Li, Be, N, O elements were obtained.
The values of deformation parameter of emitted fragment...
Abstract:
VMI model is used to analyse the ground band and superband of some nuclei. It is indicated that the angular momentum of the bandhead of superband of two-quasiparticle excitations should be I0≥8+.
VMI model is used to analyse the ground band and superband of some nuclei. It is indicated that the angular momentum of the bandhead of superband of two-quasiparticle excitations should be I0≥8+.
Abstract:
A heavy ion reaction products identification setup, which consists of a time-offlight measurement system and a ΔE-E telescope, has been constructed. The time resolution of the setup was found to be 250 ps (FWHM) for the elastic scattered particles of...
A heavy ion reaction products identification setup, which consists of a time-offlight measurement system and a ΔE-E telescope, has been constructed. The time resolution of the setup was found to be 250 ps (FWHM) for the elastic scattered particles of...
Abstract:
Using the N~λn and Er(I+2)/Er(I)~I plots, the latest experimental spectrum of the nucleus 15266Dy86 has been further analysed. It is point out that the ground band levels with I=8+ belong to deformed collective band. But values of deformation are les...
Using the N~λn and Er(I+2)/Er(I)~I plots, the latest experimental spectrum of the nucleus 15266Dy86 has been further analysed. It is point out that the ground band levels with I=8+ belong to deformed collective band. But values of deformation are les...
Abstract:
A sample and hold circuit with 8-hit capacity to be used to drift chamber read out electronics is described. It's integral nonlinearity is better than 0.5% for input pulse with 0—4V amplitude. Sampling error is about 1% with acquisition time of 80 ns...
A sample and hold circuit with 8-hit capacity to be used to drift chamber read out electronics is described. It's integral nonlinearity is better than 0.5% for input pulse with 0—4V amplitude. Sampling error is about 1% with acquisition time of 80 ns...
Abstract:
The knowledge of SU(3) single-link partition function is required in many calculations (such as the strong coupling expansion, the mean field and variational approximation, etc.) in lattice gauge field theory. We express the single-link partition fun...
The knowledge of SU(3) single-link partition function is required in many calculations (such as the strong coupling expansion, the mean field and variational approximation, etc.) in lattice gauge field theory. We express the single-link partition fun...
Abstract:
A model based on Pati-Salam-Sarkar's work is presented in which p→μ+η has a half chance to be the main mode of proton decay.
A model based on Pati-Salam-Sarkar's work is presented in which p→μ+η has a half chance to be the main mode of proton decay.
Abstract:
The possibility of constructing at a realistic SUSY GUT model by use of N=2 finite supersymmetric theory is discussed. We find that the spontaneous breaking of gauge symmetry and supersymmetry can be realized, but it is difficult to make the quarks a...
The possibility of constructing at a realistic SUSY GUT model by use of N=2 finite supersymmetric theory is discussed. We find that the spontaneous breaking of gauge symmetry and supersymmetry can be realized, but it is difficult to make the quarks a...
IF: 3.6
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