2007 Vol. 31, No. 7
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Abstract:
In the framework of the littlest Higgs(LH) model and the littlest Higgs model with T-parity(LHT), we investigate the single top production process e－γ→νebt, and calculate the corrections of these two models to the cross section of this process. We fi...
In the framework of the littlest Higgs(LH) model and the littlest Higgs model with T-parity(LHT), we investigate the single top production process e－γ→νebt, and calculate the corrections of these two models to the cross section of this process. We fi...
Abstract:
The performance of the Hard X-ray Modulation Telescope (HXMT) is significantly influenced by the collecting area. Based on the simulations of the background and the point spread function of the instrument, we propose a new collimator scheme in which ...
The performance of the Hard X-ray Modulation Telescope (HXMT) is significantly influenced by the collecting area. Based on the simulations of the background and the point spread function of the instrument, we propose a new collimator scheme in which ...
Abstract:
We employ here a Relativistic Transport (ART) Model for Uranium + Uranium collisions at Eb=0.52GeV/u. We study the impact parameter, rapidity and transverse momentum dependence of elliptic flow v2 for nucleons and pions in two extreme orientation U...
We employ here a Relativistic Transport (ART) Model for Uranium + Uranium collisions at Eb=0.52GeV/u. We study the impact parameter, rapidity and transverse momentum dependence of elliptic flow v2 for nucleons and pions in two extreme orientation U...
Abstract:
The high spin states in neutron-deficient 134Ba nucleus have been studied by using heavy ion induced reaction 130Te(9Be,5n) and in-beam γ-ray spectroscopy carried out at China Institute of Atomic Energy. The level scheme has been updated with spin up...
The high spin states in neutron-deficient 134Ba nucleus have been studied by using heavy ion induced reaction 130Te(9Be,5n) and in-beam γ-ray spectroscopy carried out at China Institute of Atomic Energy. The level scheme has been updated with spin up...
Abstract:
According to the regulation of growing and decay of artificial radioactive nuclide, a formula used to calculate the cross section of isomerous state with characteristic gamma-ray of ground state in a special case was deduced. And the cross sections o...
According to the regulation of growing and decay of artificial radioactive nuclide, a formula used to calculate the cross section of isomerous state with characteristic gamma-ray of ground state in a special case was deduced. And the cross sections o...
Abstract:
In present paper several methods of evaluating discrepant data are introduced and compared each other briefly. The advantage and disadvantage of these methods(WM: weighted mean, LRSW: Limitation of relative statistical weights, MBAYS: Modified Bayesi...
In present paper several methods of evaluating discrepant data are introduced and compared each other briefly. The advantage and disadvantage of these methods(WM: weighted mean, LRSW: Limitation of relative statistical weights, MBAYS: Modified Bayesi...
Abstract:
The calculations of nucleus-nucleus potential are carried out in the framework of double folding model with M3Y-Reid and M3Y-Paris effective nucleon-nucleon (NN) interactions. The exchange part of the interaction, which is taken to be of finite range...
The calculations of nucleus-nucleus potential are carried out in the framework of double folding model with M3Y-Reid and M3Y-Paris effective nucleon-nucleon (NN) interactions. The exchange part of the interaction, which is taken to be of finite range...
Abstract:
The decay scheme of 76Br is obtained by the 76Br (T1/2=16.2h)β+/EC approach. And the 1791.31keV level, which was identified firstly by Muller et al by the 76Se(p, p′) approach several years ago, is reconfirmed. However, Muller et al did not point out...
The decay scheme of 76Br is obtained by the 76Br (T1/2=16.2h)β+/EC approach. And the 1791.31keV level, which was identified firstly by Muller et al by the 76Se(p, p′) approach several years ago, is reconfirmed. However, Muller et al did not point out...
Abstract:
A theoretical method for testing shell effect is proposed. In the framework of the relativistic mean-field theory with the consideration of the BCS approach, by calculating the fluctuation of the particle-number, we discover that particle number fluc...
A theoretical method for testing shell effect is proposed. In the framework of the relativistic mean-field theory with the consideration of the BCS approach, by calculating the fluctuation of the particle-number, we discover that particle number fluc...
Abstract:
The influences of the isospin dependent in-medium nucleon-nucleon cross section and the Momentum-Dependent Interaction(MDI) on the isotope scaling have been investigated within the Isospin dependent Quantum Molecular Dynamics Model(IQMD). The results...
The influences of the isospin dependent in-medium nucleon-nucleon cross section and the Momentum-Dependent Interaction(MDI) on the isotope scaling have been investigated within the Isospin dependent Quantum Molecular Dynamics Model(IQMD). The results...
Abstract:
The passive beam delivery system in the superficially-placed tumor therapy terminal at Heavy Ion Research Facility in Lanzhou (HIRFL), which includes two orthogonal dipole magnets as scanning system, a motor-driven energy degrader as range-shifter, s...
The passive beam delivery system in the superficially-placed tumor therapy terminal at Heavy Ion Research Facility in Lanzhou (HIRFL), which includes two orthogonal dipole magnets as scanning system, a motor-driven energy degrader as range-shifter, s...
Abstract:
In the case that the mean value of Poisson distribution is a function of an unknown parameter to estimate, the commonly adopted maximum likelihood estimate of the parameter based on a single measurement is generally biased. With the aid of moment exp...
In the case that the mean value of Poisson distribution is a function of an unknown parameter to estimate, the commonly adopted maximum likelihood estimate of the parameter based on a single measurement is generally biased. With the aid of moment exp...
Abstract:
Experimental study of the performance of triple-GEM and a multi-channel image was reported. The measured experimentally best energy resolution of 55Fe 5.9keV X-ray full energy photo electron peak is 20.2%, effective gain ≥104. Image was obtained by u...
Experimental study of the performance of triple-GEM and a multi-channel image was reported. The measured experimentally best energy resolution of 55Fe 5.9keV X-ray full energy photo electron peak is 20.2%, effective gain ≥104. Image was obtained by u...
Abstract:
A recoil separator Wien-filter which was developed for the Radioactive Ion Beam Line in Lanzhou (RIBLL) as an extension is described. It consists of 2 quadruple triplets and a standard Wien-filter. It was designed for study of the fusion-evaporation ...
A recoil separator Wien-filter which was developed for the Radioactive Ion Beam Line in Lanzhou (RIBLL) as an extension is described. It consists of 2 quadruple triplets and a standard Wien-filter. It was designed for study of the fusion-evaporation ...
Abstract:
The double pulsed electron beams' characteristics such as the movement position, the beams spot and the emittance were experimentally studied in the time-resolved mode. In the experiments, beam bugs were usedto detect the beam currents and the beam p...
The double pulsed electron beams' characteristics such as the movement position, the beams spot and the emittance were experimentally studied in the time-resolved mode. In the experiments, beam bugs were usedto detect the beam currents and the beam p...
Abstract:
Numerical simulation of X-band metallic photonic band gap (PBG) accelerating structure based on a 3D electro-magnetic program is presented. The design of 11.42GHz traveling-wave accelerator has been successfully completed, including the RF-coupler de...
Numerical simulation of X-band metallic photonic band gap (PBG) accelerating structure based on a 3D electro-magnetic program is presented. The design of 11.42GHz traveling-wave accelerator has been successfully completed, including the RF-coupler de...
Abstract:
The paper discusses the characteristic of signal transfers, reflection and phase shift of mcrowave system of Medical Standing Electron Linear Accelerator. The curve of the dose rate versus phase shift of microwave system for medical standing wave ele...
The paper discusses the characteristic of signal transfers, reflection and phase shift of mcrowave system of Medical Standing Electron Linear Accelerator. The curve of the dose rate versus phase shift of microwave system for medical standing wave ele...
Abstract:
The theoretical explanations about the "ρπ" in charmonium decays are reviewed extensively, and the comparison of theoretical predications with experimental data is made whenever possible. Three methods to estimate the ratio of the branching fractions...
The theoretical explanations about the "ρπ" in charmonium decays are reviewed extensively, and the comparison of theoretical predications with experimental data is made whenever possible. Three methods to estimate the ratio of the branching fractions...
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- Cosmology
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