2001 Vol. 25, No. 12
Display Method: |
Abstract:
The observed cross sections of processes e+e－→e+e－,μ+μ－,π+π－J/ψ and hadrons at 24 energy points in the vicinity of ψ(2S) resonance have been measured by BES(Beijing Spectrometer). The resonance cross sections for above four final states take the Brei...
The observed cross sections of processes e+e－→e+e－,μ+μ－,π+π－J/ψ and hadrons at 24 energy points in the vicinity of ψ(2S) resonance have been measured by BES(Beijing Spectrometer). The resonance cross sections for above four final states take the Brei...
Abstract:
In the framework of the topcolor-assisted multiscale technicolor(TOPCMTC)models,we discuss the s-channel resonance production of the lightest neutral technipion P0 at the First Muon Collider(FMC). Our calculation results show that the effective cross...
In the framework of the topcolor-assisted multiscale technicolor(TOPCMTC)models,we discuss the s-channel resonance production of the lightest neutral technipion P0 at the First Muon Collider(FMC). Our calculation results show that the effective cross...
Abstract:
Using the parton distribution functions of Fe given by the extended x-rescaling model,the influence of heavy qarkonium production mechanism to associate J/ψ and γ production in high energy proton-iron collisions is discnssed. The results show that th...
Using the parton distribution functions of Fe given by the extended x-rescaling model,the influence of heavy qarkonium production mechanism to associate J/ψ and γ production in high energy proton-iron collisions is discnssed. The results show that th...
Abstract:
The SU(2)L×SU(2)R σ-model was extended to a SU(2)L×SU(2)R×U(1)σ-model with electromagnetic interaction. The chiral SU(2)L×SU(2)R×U(1)σ-model with both dynamical breaking and vacuum spontaneous symmetry breaking is investigated by means of the Consist...
The SU(2)L×SU(2)R σ-model was extended to a SU(2)L×SU(2)R×U(1)σ-model with electromagnetic interaction. The chiral SU(2)L×SU(2)R×U(1)σ-model with both dynamical breaking and vacuum spontaneous symmetry breaking is investigated by means of the Consist...
Abstract:
The higher-order powers of squeezing properties of light field for odd and even two-parameter deformed-coherent states have been studied, and the numerical method is used to investigate the influence of the two parameters (q and s) on the properties....
The higher-order powers of squeezing properties of light field for odd and even two-parameter deformed-coherent states have been studied, and the numerical method is used to investigate the influence of the two parameters (q and s) on the properties....
Abstract:
Intermediate energy radioactive ion beams of 8B and 9C were produced with 75MeV/u 12C beam on 9Be target. Total reaction cross sections σ R for 8B and 9C on silicon target were measured by the transmission method at the second focus of RIBLL. If the ...
Intermediate energy radioactive ion beams of 8B and 9C were produced with 75MeV/u 12C beam on 9Be target. Total reaction cross sections σ R for 8B and 9C on silicon target were measured by the transmission method at the second focus of RIBLL. If the ...
Abstract:
A new model, based on unified Hauser-Feshbach and exciton model, for neutron induced light nucleus reaction has been developed. In case of E n≤20MeV, the total cross section, non-elastic cross section, elastic angular distribution, and the energy-ang...
A new model, based on unified Hauser-Feshbach and exciton model, for neutron induced light nucleus reaction has been developed. In case of E n≤20MeV, the total cross section, non-elastic cross section, elastic angular distribution, and the energy-ang...
Abstract:
The couplings of ΔπN and πNN are calculated by employing the relativistic quark model incorporated with pion meson cloud. Our results indicate the important role of the pion meson cloud on Δ(1232) resonance. Therefore, the pion meson cloud should be ...
The couplings of ΔπN and πNN are calculated by employing the relativistic quark model incorporated with pion meson cloud. Our results indicate the important role of the pion meson cloud on Δ(1232) resonance. Therefore, the pion meson cloud should be ...
Abstract:
The directed and elliptic flow in collisions of 40Ca+40Ca at energies from 30MeV/nucleon to 150MeV/nucleon is well studied in an isospin-dependent quantum molecule dynamics model (IQMD). With increasing incident energy, the directed flow rises from t...
The directed and elliptic flow in collisions of 40Ca+40Ca at energies from 30MeV/nucleon to 150MeV/nucleon is well studied in an isospin-dependent quantum molecule dynamics model (IQMD). With increasing incident energy, the directed flow rises from t...
Abstract:
The recent development of superdeformed identical bands are briefly reviewed. Some typical superdeformed bands are analyzed by the formula of Bohr-Mottelson's I(I+1) expansion. The results show that the dynamic moments of inertia J(2) of so-called tw...
The recent development of superdeformed identical bands are briefly reviewed. Some typical superdeformed bands are analyzed by the formula of Bohr-Mottelson's I(I+1) expansion. The results show that the dynamic moments of inertia J(2) of so-called tw...
Abstract:
We argue that effective pion mass in nuclear matter obtained from chiral effective lagrangians is unique and does not depend on off-mass-shell extensions of the pion fields as e. g. the PCAC choice. How chiral perturbation theory can be applied to th...
We argue that effective pion mass in nuclear matter obtained from chiral effective lagrangians is unique and does not depend on off-mass-shell extensions of the pion fields as e. g. the PCAC choice. How chiral perturbation theory can be applied to th...
Abstract:
The total reaction cross sections of some halo nucleis on the stable nucleus have been calculated by using improved Glauber theory, which includes quantum correction, Coulomb correction and isospin effects of nucleon-nucleon collision under the assum...
The total reaction cross sections of some halo nucleis on the stable nucleus have been calculated by using improved Glauber theory, which includes quantum correction, Coulomb correction and isospin effects of nucleon-nucleon collision under the assum...
Abstract:
With GEANT3 frame, we simulate the lead-scintillating fiber type barrel shower counter (BSC) of BESⅢ. The structure of BSC in the simulation is analogous to Φ Factory's, and it's thinkness is 14.4X 0. The simulations show that the shower time informa...
With GEANT3 frame, we simulate the lead-scintillating fiber type barrel shower counter (BSC) of BESⅢ. The structure of BSC in the simulation is analogous to Φ Factory's, and it's thinkness is 14.4X 0. The simulations show that the shower time informa...
Abstract:
An analysis of the electromagnetic field in 2D uniform and axis-symmetric structures based on FEM (Finite Element Method) is presented in this paper. The equation of FEM is derived based on the Maxwell equations and variational theory. The resulting ...
An analysis of the electromagnetic field in 2D uniform and axis-symmetric structures based on FEM (Finite Element Method) is presented in this paper. The equation of FEM is derived based on the Maxwell equations and variational theory. The resulting ...
Abstract:
Study on the section-division of superconducting proton linac is carried out in detail. Firstly, the principles of the section-division, the determination of the cell number of the superconducting cavity and the value of the geometric βG are introduc...
Study on the section-division of superconducting proton linac is carried out in detail. Firstly, the principles of the section-division, the determination of the cell number of the superconducting cavity and the value of the geometric βG are introduc...
Abstract:
Synchrotron radiation X-ray reflection method is used to study the depth distribution of Ge atoms in Si crystals caused by surface segregation during the MBE growth. The distribution of Ge atoms in Si crystal is found to have asymmetric exponential s...
Synchrotron radiation X-ray reflection method is used to study the depth distribution of Ge atoms in Si crystals caused by surface segregation during the MBE growth. The distribution of Ge atoms in Si crystal is found to have asymmetric exponential s...
Abstract:
N-type crystalline Si (100) implanted with 5keV B ions was subsequently irradiated with MeV Si, O and F ions. The B atom profiles were measured by means of secondary ion mass spectrometer after the treatment of rapid thermal annealing. The results sh...
N-type crystalline Si (100) implanted with 5keV B ions was subsequently irradiated with MeV Si, O and F ions. The B atom profiles were measured by means of secondary ion mass spectrometer after the treatment of rapid thermal annealing. The results sh...
Abstract:
A flowing gas proportional counter (FGPC) as the detector for astronomical observation in soft X-ray (0.2-3.5keV) range is calibrated on the 3W1B beamline at Beijing Synchrotron Radiation Facility (BSRF). The dead time, counting rate plateau curves, ...
A flowing gas proportional counter (FGPC) as the detector for astronomical observation in soft X-ray (0.2-3.5keV) range is calibrated on the 3W1B beamline at Beijing Synchrotron Radiation Facility (BSRF). The dead time, counting rate plateau curves, ...
Abstract:
Using the dynamical transport approach RQMD with a correlation afterburner,the behavior of two-pion HBT parameters is studied for Au+Au collisions at RHIC energy s=200GeV/u. We find that the HBT size parameters do reflect the source geometry at freez...
Using the dynamical transport approach RQMD with a correlation afterburner,the behavior of two-pion HBT parameters is studied for Au+Au collisions at RHIC energy s=200GeV/u. We find that the HBT size parameters do reflect the source geometry at freez...
IF: 3.6
Monthly founded in 1977
Sponsored by:
ISSN 1674-1137 CN 11-5641/O4
Original research articles, Ietters and reviews Covering theory and experiments in the fieids of
- Particle physics
- Nuclear physics
- Particle and nuclear astrophysics
- Cosmology
Author benefits
- A SCOAP3 participating journal - free Open Access publication for qualifying articles
- Average 24 days to first decision
- Fast-track publication for selected articles
- Subscriptions at over 3000 institutions worldwide
- Free English editing on all accepted articles
News
- Chinese Physics C Outstanding Reviewer Award 2023
- Impact factor of Chinese Physics C is 3.6 in 2022
- 2022 CPC Outstanding Reviewer Awards
- The 2023 Chinese New Year-Office closure
- ãChinese Physics CãBEST PAPER AWARDS 2022
Cover Story
- Cover Story (Issue 1, 2025) Comments on Prediction of Energy Resolution inthe JUNO Experiment
- Cover Story (Issue 12, 2024) | Doubly heavy meson puzzle: precise prediction of the mass spectra and hadronic decay with coupled channel effects to hunt for beauty-charm family
- Cover Story (Issue 9, 2024) Measurement of solar pp neutrino flux using electron recoil data from PandaX-4T commissioning run
- Cover Story (Issue 11, 2024) ï½ Form factor for Dalitz decays from J/Ï to light pseudoscalars
- Cover Story (Issue 3, 2024) | First measurement of the ground-state mass of 22Al helps to evaluate the ab-initio theory
Advertising
