2001 Vol. 25, No. 10
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Abstract:
Using the improved lattice Hamiltonian and the truncated eigenvalue equation method, we com- pute the 0++ glueball mass for (2+1)-dimensional QCD. The numerical result shows a good scaling be havior.
Using the improved lattice Hamiltonian and the truncated eigenvalue equation method, we com- pute the 0++ glueball mass for (2+1)-dimensional QCD. The numerical result shows a good scaling be havior.
Abstract:
In the framework of topcolor-assisted technicolor (TC2) theory, we calculate the contri- butions of TC2 dynamics and the neutral top-pion to top-charm production at the high energy e+e－ linear collider (LC) experiments. Our results show that the cont...
In the framework of topcolor-assisted technicolor (TC2) theory, we calculate the contri- butions of TC2 dynamics and the neutral top-pion to top-charm production at the high energy e+e－ linear collider (LC) experiments. Our results show that the cont...
Abstract:
The cross section of the process X-0X-0→gg is calculated in supersymmetry model of parti- cle physics. By means of the obtained cross section value, the estimate of source spectrum for anti- protons produced by neutralino X-0 annihilation is given. W...
The cross section of the process X-0X-0→gg is calculated in supersymmetry model of parti- cle physics. By means of the obtained cross section value, the estimate of source spectrum for anti- protons produced by neutralino X-0 annihilation is given. W...
Abstract:
The general quantization condition for periodic orbits in a two-dimensional integrable sys- tem is presented via the Berry-Tabor trace formula. Using the quantization and a periodicity condi- tion of periodic orbits the semiclassical quantization con...
The general quantization condition for periodic orbits in a two-dimensional integrable sys- tem is presented via the Berry-Tabor trace formula. Using the quantization and a periodicity condi- tion of periodic orbits the semiclassical quantization con...
Abstract:
The antibunching effect for the eigenstates of the k-th powers of the annihilation operator of two-parameter deformed harmonic oscillator (akqs,k≥3) is studied. Using the numerical method , we have studied the influences of the two parameter (qs) def...
The antibunching effect for the eigenstates of the k-th powers of the annihilation operator of two-parameter deformed harmonic oscillator (akqs,k≥3) is studied. Using the numerical method , we have studied the influences of the two parameter (qs) def...
Abstract:
The β+ delay proton decay spectrum has been measured with TOF-ΔE method and zero degree detectors at the radioactive ion beam line in Lanzhou. The half life of 23 Al was determined to be T1/2=(476±45)ms by using a time scaler cornbined with the preci...
The β+ delay proton decay spectrum has been measured with TOF-ΔE method and zero degree detectors at the radioactive ion beam line in Lanzhou. The half life of 23 Al was determined to be T1/2=(476±45)ms by using a time scaler cornbined with the preci...
Abstract:
Excited states of 88Sr have been produced in the fusion evaporation reaction between 82Se beam and 16O from a heavily oxidized Ba target and studied using the in-beam γspectroscopy tech- niques. Two high-spin level structures have been Observed and e...
Excited states of 88Sr have been produced in the fusion evaporation reaction between 82Se beam and 16O from a heavily oxidized Ba target and studied using the in-beam γspectroscopy tech- niques. Two high-spin level structures have been Observed and e...
Abstract:
High spin states of 129Ce were populated through the reaction 116Sn(16O,3n)129Ce at a beam energy of 73 MeV. Lifetimes of the excited states were measured using the Doppler shift atten-uation method. The transition quadrupole moments Qt were deduced ...
High spin states of 129Ce were populated through the reaction 116Sn(16O,3n)129Ce at a beam energy of 73 MeV. Lifetimes of the excited states were measured using the Doppler shift atten-uation method. The transition quadrupole moments Qt were deduced ...
Abstract:
The nuclear deformation effect on the J/ψ suppression in U-U central collisions at 200A GeV/c is investigated based on the hadron and string cascade model, JPCIAE. We found that the J/ψ suppression is nearly decreased by a factor of two, if the major...
The nuclear deformation effect on the J/ψ suppression in U-U central collisions at 200A GeV/c is investigated based on the hadron and string cascade model, JPCIAE. We found that the J/ψ suppression is nearly decreased by a factor of two, if the major...
Abstract:
The aim of this paper is to explain theoretically the abnormal protuberances near and after 5.5 MeV in the gamma spectra of the (n, γ) reactions for the nulei in the regions of 110≤A≤140 and 180≤A≤210.
Supposing that in the primary and cascade gamma d...
The aim of this paper is to explain theoretically the abnormal protuberances near and after 5.5 MeV in the gamma spectra of the (n, γ) reactions for the nulei in the regions of 110≤A≤140 and 180≤A≤210.
Supposing that in the primary and cascade gamma d...
Abstract:
The distributions of the relative momentum of correlated and uncorrelated pion pairs are given. The relations between the parameters of elliptical and spherical pion sources are obained by using the distribution of the relative momentum of correlated...
The distributions of the relative momentum of correlated and uncorrelated pion pairs are given. The relations between the parameters of elliptical and spherical pion sources are obained by using the distribution of the relative momentum of correlated...
Abstract:
Using temperature, density and isospin dependent nuclear equation of state, we calculat- ed the moment of inertia and surface redshift of neutron star by resolving Tolman-Oppenheimer-Volkoff equation. It is found that the moment of inertia and surfac...
Using temperature, density and isospin dependent nuclear equation of state, we calculat- ed the moment of inertia and surface redshift of neutron star by resolving Tolman-Oppenheimer-Volkoff equation. It is found that the moment of inertia and surfac...
Abstract:
The GEANT3 code, a general software for detector simulations widely used in the experi- ments of particle physics, is introduced to the Monte Carlo simulation of iron emulsion chambers. Some haracteristics of transition curves of cascade shower and t...
The GEANT3 code, a general software for detector simulations widely used in the experi- ments of particle physics, is introduced to the Monte Carlo simulation of iron emulsion chambers. Some haracteristics of transition curves of cascade shower and t...
Accurate Computation on High Order Modes of Axial-symmetric Cavity with Vector Finite Element Method
Abstract:
Eigenfrequencies of high order modes in the axial-symmetric cavities are computed with a vector finite element method. Mathematics models and physics theories are combined in a rational way, which avoids the spurious modes caused by ordinary finite e...
Eigenfrequencies of high order modes in the axial-symmetric cavities are computed with a vector finite element method. Mathematics models and physics theories are combined in a rational way, which avoids the spurious modes caused by ordinary finite e...
Abstract:
The effects of the relativistic electron beam on the phase velocity of RF field in accelera-tor for small signal are studied. The idea of equating electron beam with medium is first developed and the formula of equivalent relative dielectric constant...
The effects of the relativistic electron beam on the phase velocity of RF field in accelera-tor for small signal are studied. The idea of equating electron beam with medium is first developed and the formula of equivalent relative dielectric constant...
Abstract:
To satisfy the requirements of the Heavy Ion Cooling Storage Ring which is under con- struction at Lanzhou, afterglow mode was tested with the IMP 14 .5GHz ECR ion source to produce pulsed ion beams. The afterglow phenomenon was clearly observed and ...
To satisfy the requirements of the Heavy Ion Cooling Storage Ring which is under con- struction at Lanzhou, afterglow mode was tested with the IMP 14 .5GHz ECR ion source to produce pulsed ion beams. The afterglow phenomenon was clearly observed and ...
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