181884583
MODULAR ELECTRONICS FOR ALPHANUMERICAL AND COLOR SEMIGRAPHIC INFORMATION DISPLAY ON THE TV MONITORS
125911269
A FIVE RAY OSCILLOSCOPE FOR MEASURING PI+ MESON LIFETIME
107557313
Memory matrixes with ferrite cores for wire spark chambers.
181756162
Electronic System of Data Output with Digital Processor for Multichannel Cherenkov Counter with Small Multipliers. (In Russian)
104149626
EXPERIMENTAL STUDY OF THE pi+ p ---> K+ SIGMA+ REACTION AT 12-GeV/c
182391760
Proportional Chamber Readout System
123103142
Regge trajectories from QCD
Abstract Relativistic quark-antiquark system in the vacuum background field is considered in the proper-time path-integral formalism. Dynamics is given by the Wilson loop for which the area law is assumed. The relativistic quark dynamics reduces for heavy q q bound states to three-dimensional Schrodinger equation with variable masses. A mechanism is discovered which generates dynamic (transverse) quark masses. Resulting Regge trajectories are asymptotically linear.
124162702
Dynamical regimes of the QCD string with quarks
SummaryThis a short report on the first paper (A. Dubin, A. Kaidalov and Yu. Simonov:Yad. Fiz.,56, No. 12 (1993)) of a series devoted to quantum dynamics of the quark-antiquark system at large distances. Starting from the QCD Lagrangian, we derive the effective action for a massive quark and antiquark at large distances, corresponding to the minimal-area law of the Wilson loop. The path integral method is used to quantize the system and the spectrum is obtained with asymptotically linear Regge trajectories. Two dynamical regimes distinguished by the string energy-momentum distribution are found: at large orbital excitations (l≫1) the system behaves as a string and yields the Regge slope of 1/2πσ, while at smalll one obtains a potential-like regime for the relativistic or non-relativistic system. The problem of relative time is clarified. It is shown that in the valence-quark approximation one can reduce the initial four-dimensional dynamics to three dimensions.
14126896
Triangular and Y-shaped hadrons with static sources
The structure of hadrons consisting of three static color sources in fundamental (baryons) or adjoint (three-gluon glueballs) representations is studied. The static potentials of glueballs, as well as gluon field distributions in glueballs and baryons, are calculated in the framework of the field correlator method.
15371095
HOT NONPERTURBATIVE QCD
Starting from the new background field formalism for T > 0, with nonperturbative (NP) background given as gauge invariant fiel correlators, new perturbation theory and diagram technic is introduced. Confined and deconfined phases are explicitly described and critical temperature Tc is expressed in terms of the scale anomaly term. Resulting numerical estimates of Tc agree well with lattice data. Spacial area law is shown to follow naturally for T > Tc, and a set of Hamiltonians is obtained for screening masses of mesons and glueballa depending on the Matsubara frequences. Thelowest screening masses and wave functions of mesons obtained agree with lattice data and earlier calculations. Screening glueball masses and wave functions are also computed from the Hamiltonian and two different regimes are observed in high and low T regions. The infrared catastrophe of hot QCD is shown to be cured by the NP background.
119263778
Quark-Antiquark System in Ultra-Intense Magnetic Field
We study the relativistic quark-antiquark system embedded in magnetic field (MF). The Hamiltonian containing confinement, color Coulomb and spin-spin interaction is derived. We analytically follow the evolution of the lowest neutral meson state as a function of MF strength. Calculating the color Coulomb energy $V_{Coul}$ we have observed the unbounded negative (at least in the limit of large $N_c$) contribution at large MF which makes the mass negative for $eB> eB^{QCD}_{crit}$. We display the $\pi^0$ and $\rho^0$ masses as functions of MF in comparison with recent lattice data.