2003 Vol. 27, No. 9
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Abstract:
The properties of four factorized chi-square forms, which are used in minimization of correlated data, are studied, including their biasness and unbiasedness. The simplified R-value measurement are quoted to test the conclusion quantitatively.
The properties of four factorized chi-square forms, which are used in minimization of correlated data, are studied, including their biasness and unbiasedness. The simplified R-value measurement are quoted to test the conclusion quantitatively.
Abstract:
Using the hypothesis of maximum non-perturbative strong interaction reaction and basing on the character of none unitarity corrections in the amplitude for exchanging the non-perturbative color octet gluer, constituent of Pomeron, in strong-soft inte...
Using the hypothesis of maximum non-perturbative strong interaction reaction and basing on the character of none unitarity corrections in the amplitude for exchanging the non-perturbative color octet gluer, constituent of Pomeron, in strong-soft inte...
Abstract:
The two-body nonleptonic charmed meson decays into two pseudoscalar mesons are studied using one-particle-exchange method. The effects of the final state interactions are analyzed through the strong phases extracted from the experimental data.
The two-body nonleptonic charmed meson decays into two pseudoscalar mesons are studied using one-particle-exchange method. The effects of the final state interactions are analyzed through the strong phases extracted from the experimental data.
Abstract:
A periodic solution in two-dimensional dilaton gravity model is obtained in this paper, the equivalence of periodic solution with electric sine-Gordon soliton solution is proved through coordinate transformation.
A periodic solution in two-dimensional dilaton gravity model is obtained in this paper, the equivalence of periodic solution with electric sine-Gordon soliton solution is proved through coordinate transformation.
Abstract:
Supersymmetry and Shape invariance of Double ring-shaped oscillator (DRSO) is studied. The energy eigenvalues and eigenfunctions of DRSO are obtained.
Supersymmetry and Shape invariance of Double ring-shaped oscillator (DRSO) is studied. The energy eigenvalues and eigenfunctions of DRSO are obtained.
Abstract:
In this paper, we make use of the Burgan et al's method to derive the solution of the time dependent coulomb potential and linear potential with a special form, V(r,t)=-a0ξ 12r+a 1rξ32, (where ξ=at 2+bt+c, a 0, a 1, a,b,c are parameters with certain ...
In this paper, we make use of the Burgan et al's method to derive the solution of the time dependent coulomb potential and linear potential with a special form, V(r,t)=-a0ξ 12r+a 1rξ32, (where ξ=at 2+bt+c, a 0, a 1, a,b,c are parameters with certain ...
Abstract:
Some results have been introduced on China-Italy DAMA cooperation--100kg NaI(Tl) crystal set-up experiments. There are lots of background problems need to be studied carefully, which would affect the results of DAMA experiments. Here, the radiation b...
Some results have been introduced on China-Italy DAMA cooperation--100kg NaI(Tl) crystal set-up experiments. There are lots of background problems need to be studied carefully, which would affect the results of DAMA experiments. Here, the radiation b...
Abstract:
High spin states of 80Rb have been studied by using fusion evaporation reactions,65Cu+19F,66Zn+18O and 68Zn+16O with beam energies of 75MeV, 76MeV and 80MeV, respectively, at HI-13 Tandem accelerator Beijing and JAERI Japan. γ-γ coincidence and DCO r...
High spin states of 80Rb have been studied by using fusion evaporation reactions,65Cu+19F,66Zn+18O and 68Zn+16O with beam energies of 75MeV, 76MeV and 80MeV, respectively, at HI-13 Tandem accelerator Beijing and JAERI Japan. γ-γ coincidence and DCO r...
Abstract:
In this paper, we calculate the properties of the spin polarized isospin asymmetric nuclear matter by employing the Skyrme effective interaction with two sets of parameters SKM * and SⅢ, giving the equation of the state and the radio det(1/χ)det(1/χF...
In this paper, we calculate the properties of the spin polarized isospin asymmetric nuclear matter by employing the Skyrme effective interaction with two sets of parameters SKM * and SⅢ, giving the equation of the state and the radio det(1/χ)det(1/χF...
Abstract:
The shell closure and shell anomalies of Mg, Si and S isotopes are investigated in the framework of relativistic mean-field theory. From two-proton and two-neutron separation gaps, we find that (1) there exist obvious shell effects at N=12, 16 in Mg ...
The shell closure and shell anomalies of Mg, Si and S isotopes are investigated in the framework of relativistic mean-field theory. From two-proton and two-neutron separation gaps, we find that (1) there exist obvious shell effects at N=12, 16 in Mg ...
Abstract:
Influence of the shell effect on the emission of light particles prior to scission is explored in the framework of the Smoluchowski equation. Doubly magic nuclei 208Pb and 132Sn are chosen as examples to demonstrate this shell effect. Results show th...
Influence of the shell effect on the emission of light particles prior to scission is explored in the framework of the Smoluchowski equation. Doubly magic nuclei 208Pb and 132Sn are chosen as examples to demonstrate this shell effect. Results show th...
Abstract:
The dependence of entropy index μ 2 on the width and shape of multiplicity distributions are studied in detail by using Monte Carlo method and comparing with the results from NA22 experiment.It is found that the entropy index is insensitive to the sh...
The dependence of entropy index μ 2 on the width and shape of multiplicity distributions are studied in detail by using Monte Carlo method and comparing with the results from NA22 experiment.It is found that the entropy index is insensitive to the sh...
Abstract:
The software of track reconstruction of the vertex chamber of BESⅡ-VCJULI was studied when it was transplanted from the HP-Unix platform to PC-Linux. The problems of distinct dictionary storage and precision treatment in these two different platforms...
The software of track reconstruction of the vertex chamber of BESⅡ-VCJULI was studied when it was transplanted from the HP-Unix platform to PC-Linux. The problems of distinct dictionary storage and precision treatment in these two different platforms...
Abstract:
Kinematic Fitting is one useful method for physics analysis in order to improve the precision of the parameters to be fitted. Based on the Telesis package written with Fortran which is the code for kinematic fitting, we design a new package called Te...
Kinematic Fitting is one useful method for physics analysis in order to improve the precision of the parameters to be fitted. Based on the Telesis package written with Fortran which is the code for kinematic fitting, we design a new package called Te...
Abstract:
In designing the 3rd generation synchrotron radiation light source, many long, and dispersion free straight sections are left for installing undulators to produce coherent radiation. For the damping ring used as pre-injector of next generation linear...
In designing the 3rd generation synchrotron radiation light source, many long, and dispersion free straight sections are left for installing undulators to produce coherent radiation. For the damping ring used as pre-injector of next generation linear...
Abstract:
With the help of electron cooling code, the cooling time of 16O8+ ion beam are simulated in various parameters of the ion beam in the HIRFL-CSR electron cooling storage main ring, such as ion beam energy, initial transverse emittance, and momentum sp...
With the help of electron cooling code, the cooling time of 16O8+ ion beam are simulated in various parameters of the ion beam in the HIRFL-CSR electron cooling storage main ring, such as ion beam energy, initial transverse emittance, and momentum sp...
Abstract:
Particle simulation results of coherent stimulated radiation from subnanosecond electron bunches moving through a periodic waveguide and interacting with a backward propagating TM01 wave are presented. The longitudinal guiding magnetic field is 1.8T,...
Particle simulation results of coherent stimulated radiation from subnanosecond electron bunches moving through a periodic waveguide and interacting with a backward propagating TM01 wave are presented. The longitudinal guiding magnetic field is 1.8T,...
Abstract:
Measurement of electron bunch length through its generated CTR is a new frequency domain technique developed in the accelerator and FEL fields recently. In this paper we analyze theoretically and calculate numerically CTR produced by a train of RF-li...
Measurement of electron bunch length through its generated CTR is a new frequency domain technique developed in the accelerator and FEL fields recently. In this paper we analyze theoretically and calculate numerically CTR produced by a train of RF-li...
Abstract:
Standard radiative source are monitored by a system containing several detectors. When a source moved out from the monitored area, the counting rates of the system will be changed, and the position and radiation intensity of the source can be estimat...
Standard radiative source are monitored by a system containing several detectors. When a source moved out from the monitored area, the counting rates of the system will be changed, and the position and radiation intensity of the source can be estimat...
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