2001 Vol. 25, No. 11
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Abstract:
The well known Monte Carlo simulation package JETSET is developed to simulate the hadronic final states in e+e－ collision with center-of-mass energy Ecm10GeV,but not suitable for few GeV energy region. We develop a Monte Carlo program, LUARLW,which c...
The well known Monte Carlo simulation package JETSET is developed to simulate the hadronic final states in e+e－ collision with center-of-mass energy Ecm10GeV,but not suitable for few GeV energy region. We develop a Monte Carlo program, LUARLW,which c...
Abstract:
The higher-order squeezing and antibunching effect for the odd and even generalized q-coherent states of the non-harmonic oscillator are investigated. The numerical method is used to study these effects for the two expressions of q-number[χ]. It is s...
The higher-order squeezing and antibunching effect for the odd and even generalized q-coherent states of the non-harmonic oscillator are investigated. The numerical method is used to study these effects for the two expressions of q-number[χ]. It is s...
Abstract:
Based on the low energy QCD Lagrangian and using the wave functions of [SUSF(6)⊙O(3)]sym.⊙SUc(3) quark model of baryon structure,the strange meson photo production off the proton is studied. Calculations on cross section for γ+p→K++Λ reaction are per...
Based on the low energy QCD Lagrangian and using the wave functions of [SUSF(6)⊙O(3)]sym.⊙SUc(3) quark model of baryon structure,the strange meson photo production off the proton is studied. Calculations on cross section for γ+p→K++Λ reaction are per...
Abstract:
From the Bargmann-Wigner equation in coordinate representation, a convenient form of field equations for arbitrary spin, which are similar to the Rarita-Schwinger equations for arbitrary half integral spin, is derived rigorously. The method used here...
From the Bargmann-Wigner equation in coordinate representation, a convenient form of field equations for arbitrary spin, which are similar to the Rarita-Schwinger equations for arbitrary half integral spin, is derived rigorously. The method used here...
Abstract:
Particle particle correlation functions at small correlation angle have been measured for 40Ar+93Nb collision at E 25MeV/u. Based on three body trajectory calculation the emission time scale of light particles has been extracted from correlation func...
Particle particle correlation functions at small correlation angle have been measured for 40Ar+93Nb collision at E 25MeV/u. Based on three body trajectory calculation the emission time scale of light particles has been extracted from correlation func...
Abstract:
Coincidence measurements between residues and light charged particles (LCPs) have been made for the reactions 30MeV/u 40Ar+112,124Sn. The LCPs were measured by 11 semi-conduct telescopes from very forward angle to backward angle. The times of flight ...
Coincidence measurements between residues and light charged particles (LCPs) have been made for the reactions 30MeV/u 40Ar+112,124Sn. The LCPs were measured by 11 semi-conduct telescopes from very forward angle to backward angle. The times of flight ...
Abstract:
On the basis of "cone" jet algorithm, a Monte Carlo study of the properties of (mini) jets in high energy hadron hadron collsions is carried out. Using the "jetty frame", in which the momentum of jet is chosen as Z axis, the distributions of physical...
On the basis of "cone" jet algorithm, a Monte Carlo study of the properties of (mini) jets in high energy hadron hadron collsions is carried out. Using the "jetty frame", in which the momentum of jet is chosen as Z axis, the distributions of physical...
Abstract:
The dynamical fluctuations inside jets in the p-p collisions at CERN SppS collider are studied using Monte Carlo method. The event sample is produced using the LUND Monte Carlo generator PYTHIA5.5(JETSET7.3). The jets are identified by "cone" jet alg...
The dynamical fluctuations inside jets in the p-p collisions at CERN SppS collider are studied using Monte Carlo method. The event sample is produced using the LUND Monte Carlo generator PYTHIA5.5(JETSET7.3). The jets are identified by "cone" jet alg...
Abstract:
Hadron and string cascade model (JPCIAE),based on the hypothesis without introducing the quark gluon plasma(QGP),is employed to study the direct photon and π 0 transverse momentum distributions for central 208Pb+208Pb collisions at 158A GeV/c. The th...
Hadron and string cascade model (JPCIAE),based on the hypothesis without introducing the quark gluon plasma(QGP),is employed to study the direct photon and π 0 transverse momentum distributions for central 208Pb+208Pb collisions at 158A GeV/c. The th...
Abstract:
An improved Glauber theory for calculalions of the total reaction cross section at low and medium energies is proposed. The quantum effect,Coulomb effect and isospin effect of nucleon-nucleon collision inclnded in the improved Glauber theory are disc...
An improved Glauber theory for calculalions of the total reaction cross section at low and medium energies is proposed. The quantum effect,Coulomb effect and isospin effect of nucleon-nucleon collision inclnded in the improved Glauber theory are disc...
Abstract:
In this paper a newly developed medium-type pulsed fast neutron detector is proposed. The detector consists of front insulator,n-p converter,absorber,collector and rear insulator. The detection principle is based on the output signal from both recoil...
In this paper a newly developed medium-type pulsed fast neutron detector is proposed. The detector consists of front insulator,n-p converter,absorber,collector and rear insulator. The detection principle is based on the output signal from both recoil...
Abstract:
In order to study new isotopes and nuclear decay properties in the A>170 mass region, the laser ion source is needed and developed. For on line isotope separator, it is required that the capillary ionization has a speciality of low hot ionization eff...
In order to study new isotopes and nuclear decay properties in the A>170 mass region, the laser ion source is needed and developed. For on line isotope separator, it is required that the capillary ionization has a speciality of low hot ionization eff...
Abstract:
A preliminary design of superconducting section of proton linac for spallation neutron source is made, which includes the design and optimization of the cavity shape and the architecture design of the superconducting section. In addition, the choice ...
A preliminary design of superconducting section of proton linac for spallation neutron source is made, which includes the design and optimization of the cavity shape and the architecture design of the superconducting section. In addition, the choice ...
Abstract:
A vertical calibration system with the error of about ±15μm for the newly eight BPMs is described here, which has been developed for the upgrade of the injection system in NSRL phase II project. A data procession to calibrate the BPM and the error ca...
A vertical calibration system with the error of about ±15μm for the newly eight BPMs is described here, which has been developed for the upgrade of the injection system in NSRL phase II project. A data procession to calibrate the BPM and the error ca...
Abstract:
Time gapped communication commutator is designed for normal communication in strong electromagnetic interference region. There is strong electromagnetic noise in National Synchronization Radiation Lab, which interferences with the normal communicatio...
Time gapped communication commutator is designed for normal communication in strong electromagnetic interference region. There is strong electromagnetic noise in National Synchronization Radiation Lab, which interferences with the normal communicatio...
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