1990 Vol. 14, No. 4
Display Method: |
Abstract:
Using a aerogel sample with introduced oxygen gas as a variable energy positronium source,the triplet to singlet conversion of positronium in the elastic and inelastic collisions between positronium atoms and oxygen molecules has been investigated wi...
Using a aerogel sample with introduced oxygen gas as a variable energy positronium source,the triplet to singlet conversion of positronium in the elastic and inelastic collisions between positronium atoms and oxygen molecules has been investigated wi...
Abstract:
Through the analysis of the various factors which affect the intensity of γ-families observed by mountain emulsion chamber and the comparison of the experimental data with the results from Monte-Carlo simulation,the inference that the proton fraction...
Through the analysis of the various factors which affect the intensity of γ-families observed by mountain emulsion chamber and the comparison of the experimental data with the results from Monte-Carlo simulation,the inference that the proton fraction...
Abstract:
The analysis of the data from the heavy ion experiments at SPS of CERN and BNL indicates a strong dependence on the nuclear collision geometry.In this note we develope a stochastic method to generate such a geometry by using computer with the propert...
The analysis of the data from the heavy ion experiments at SPS of CERN and BNL indicates a strong dependence on the nuclear collision geometry.In this note we develope a stochastic method to generate such a geometry by using computer with the propert...
Abstract:
We extended the MAC principle to the case for semisimple metacolor gauge group and the constructed and SO(10)×SU(4) chrial preon model which satisfies the complementarity principle.This model had a unique solution and thus predicted 4 generations of ...
We extended the MAC principle to the case for semisimple metacolor gauge group and the constructed and SO(10)×SU(4) chrial preon model which satisfies the complementarity principle.This model had a unique solution and thus predicted 4 generations of ...
Abstract:
Using the quark production and combination rules in e+e- annihiation,we have calculated the ratio of charmed baryon to meson in e+e- annihilation.The pridectied ratio is a function of energy s,and is consistent with the experiments.
Using the quark production and combination rules in e+e- annihiation,we have calculated the ratio of charmed baryon to meson in e+e- annihilation.The pridectied ratio is a function of energy s,and is consistent with the experiments.
Abstract:
Using the real time Green's function method and SGII-type interactions,we calculate the pressure,the critical temperature and other thermodynamical quantities.We compare our results with that given by other nucleon-nucleon effective interactions.
Using the real time Green's function method and SGII-type interactions,we calculate the pressure,the critical temperature and other thermodynamical quantities.We compare our results with that given by other nucleon-nucleon effective interactions.
Abstract:
Considered the intranuclear cascade,a model for describing the distribution of grey particles in high energy hA interactions is proposed.An agreement between experimental data and the model is obtained in pA interactions and the number of grey partic...
Considered the intranuclear cascade,a model for describing the distribution of grey particles in high energy hA interactions is proposed.An agreement between experimental data and the model is obtained in pA interactions and the number of grey partic...
Abstract:
A nuclear emulsion stack bombarded by 14.6A GeV oxygen nuclei has been analyzed.The measurement of an event of a 14.6A GeV oxygen nucleus into helium nuclei has been performed.The mechanism of the fragmentation processes has been discussed.The event ...
A nuclear emulsion stack bombarded by 14.6A GeV oxygen nuclei has been analyzed.The measurement of an event of a 14.6A GeV oxygen nucleus into helium nuclei has been performed.The mechanism of the fragmentation processes has been discussed.The event ...
Abstract:
The neutron capture cross sections of Ta and In were measured in the energy range from 0.34 to 1.68MeV.A large liquid scintillator detector was used for detecting the prompt capture γ radiation.Two long-counters were used for monitoring the neutron f...
The neutron capture cross sections of Ta and In were measured in the energy range from 0.34 to 1.68MeV.A large liquid scintillator detector was used for detecting the prompt capture γ radiation.Two long-counters were used for monitoring the neutron f...
Abstract:
Based on a simplified Hamiltonian model the transition from quantum to classical diffusion behaviours for a system has been shown.The approximation of a locally harmonic oscillator and reduced density operator in the harmonic oscillator are generaliz...
Based on a simplified Hamiltonian model the transition from quantum to classical diffusion behaviours for a system has been shown.The approximation of a locally harmonic oscillator and reduced density operator in the harmonic oscillator are generaliz...
Abstract:
The influence of quantum effects on the one-body dissipation has been studied in a Monte Carlo simulation method.The results show that the influence of quantum effects decreases and finally dissappears as the frequency and amplitude of the collective...
The influence of quantum effects on the one-body dissipation has been studied in a Monte Carlo simulation method.The results show that the influence of quantum effects decreases and finally dissappears as the frequency and amplitude of the collective...
Abstract:
The characteristic dilepton mass distributions from the decay of high temperature-density quark-gluon matter in ultrarelativistic nucleusnucleus collisions were calculated via the relativistic hydrodynamics.Both longitudinal expansion accompanying tr...
The characteristic dilepton mass distributions from the decay of high temperature-density quark-gluon matter in ultrarelativistic nucleusnucleus collisions were calculated via the relativistic hydrodynamics.Both longitudinal expansion accompanying tr...
Abstract:
The cross sections of the neutron induced (n,2n) reaction an the unstable target nucleus 88Y in the energy range from 10.3 to 17.4MeV are obtained from the measurement of the 87Sr (d,2n) reaction.This work is based on the hypothesis that the formatio...
The cross sections of the neutron induced (n,2n) reaction an the unstable target nucleus 88Y in the energy range from 10.3 to 17.4MeV are obtained from the measurement of the 87Sr (d,2n) reaction.This work is based on the hypothesis that the formatio...
Abstract:
The ground state Potential Energy Surface for nucleus 190Hg was calculated in terms of Nilsson-Strutinsky method with standard κ,μ set and modified one.It is shown that there is a low-lying second minimum in prolate side except the known oblate minim...
The ground state Potential Energy Surface for nucleus 190Hg was calculated in terms of Nilsson-Strutinsky method with standard κ,μ set and modified one.It is shown that there is a low-lying second minimum in prolate side except the known oblate minim...
Abstract:
A(1+1)-dimensional lattice U91) gauge model with fermion species doubling is solved exactly.The results show that doubling exists for meson states composed of fermions and antifermions.Furthermore we prove that Susskind fermions can beat the doubling...
A(1+1)-dimensional lattice U91) gauge model with fermion species doubling is solved exactly.The results show that doubling exists for meson states composed of fermions and antifermions.Furthermore we prove that Susskind fermions can beat the doubling...
Abstract:
Various E1 transition rates for cc states are calculated in a QCD-motivated potential model.Relativistic corrections are found to be substantial.While a good agreement between theory and experiment is achieved for the rates of ψ(2s)→γχcJ and χcJ→γψ(1...
Various E1 transition rates for cc states are calculated in a QCD-motivated potential model.Relativistic corrections are found to be substantial.While a good agreement between theory and experiment is achieved for the rates of ψ(2s)→γχcJ and χcJ→γψ(1...
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