A5029807750- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum, superfluid, helium dynamics
- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Physics of Superconductivity and Magnetism
- Atomic and Molecular Physics
- High-pressure geophysics and materials
- Superconducting Materials and Applications
- Nuclear Physics and Applications
- Dark Matter and Cosmic Phenomena
- Pulsars and Gravitational Waves Research
- Black Holes and Theoretical Physics
- Particle accelerators and beam dynamics
- Neutrino Physics Research
- Quantum chaos and dynamical systems
- Radioactive Decay and Measurement Techniques
- Radiation Detection and Scintillator Technologies
- Spectral Theory in Mathematical Physics
- Scientific Research and Discoveries
- Particle Accelerators and Free-Electron Lasers
- Advanced Chemical Physics Studies
- Crystallography and Radiation Phenomena
Moscow Institute of Physics and Technology
2014-2024
Kurchatov Institute
2019-2021
Institute for Theoretical and Experimental Physics
2010-2021
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
2016-2021
University of Tennessee at Knoxville
2015
Institute of Physics
2014
Institute on Taxation and Economic Policy
2003
Heidelberg University
1991-1992
Max Planck Institute for Nuclear Physics
1991
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
1984
The violation of Baryon Number, $\mathcal{B}$, is an essential ingredient for the preferential creation matter over antimatter needed to account observed baryon asymmetry in universe. However, such a process has yet be experimentally observed. HIBEAM/NNBAR %experiment program proposed two-stage experiment at European Spallation Source (ESS) search number violation. will include high-sensitivity searches processes that violate by one or two units: free neutron-antineutron oscillation...
We study the relativistic quark-antiquark system embedded in a magnetic field (MF). The Hamiltonian containing confinement, one gluon exchange, and spin-spin interaction is derived. analytically follow evolution of lowest meson states as function MF strength. Calculating exchange energy $⟨{V}_{\mathrm{OGE}}⟩$ contribution $⟨{a}_{SS}⟩$ we have observed that these corrections remain finite at large MF, preventing vanishing total $\ensuremath{\rho}$ mass some ${B}_{\mathrm{crit}}$, previously...
This report, prepared for the Community Planning Study - Snowmass 2013 summarizes theoretical motivations and experimental efforts to search baryon number violation, focussing on nucleon decay neutron-antineutron oscillations. Present future experiments using large underground detectors, as well planned oscillation with free neutron beams are highlighted.
Part 2 of "Project X: Accelerator Reference Design, Physics Opportunities, Broader Impacts". In this Part, we outline the particle-physics program that can be achieved with Project X, a staged superconducting linac for intensity-frontier particle physics. Topics include neutrino physics, kaon muon electric dipole moments, neutron-antineutron oscillations, new light particles, hadron structure, spectroscopy, and lattice-QCD calculations. 1 is available as arXiv:1306.5022 [physics.acc-ph] 3...
Spectra of $$ q\overline{q} hadrons are investigated in the framework Hamiltonian obtained from relativistic path integral external homogeneous magnetic field. The spectra all 12 spin-isospin s-wave states, generated by π and ρ mesons with different spin projections, studied both analytically numerically on lattice as functions (magnetic field) eB. Results agreement demonstrate three types behavior, characteristic splittings predicted theory.
We present a simple interpretation of the recently observed near-threshold proton-antiproton enhancement. It is described by set low-energy parameters deduced from analysis $N\overline{N}$ experiments at Low Energy Antiproton Ring. predict related effect in photoproduction reaction under study CLAS Collaboration.
We investigate the electrical conductivity of dense quark matter in vicinity phase transition line. show that (i) at high density Drude does not depend on magnetic field up to $eB\ensuremath{\sim}1{0}^{19}\text{ }\text{ }G$, and (ii) precritical region, fluctuation (paraconductivity) dominates over one.
We examine the photoproduction of light scalar mesons $f_0$-$a_0 (980)$ with emphasis on isospin-violating $f_0$ and $a_0$ mixing due to mass difference between neutral charged kaons. General forms for invariant amplitude meson are derived, which yield expressions distribution final pairs. A state interaction form factor is obtained incorporates mesons, $K\bar K$ threshold effects, $f_0-a_0$ mixing. This applied predict effective $\pi\pi$ pairs in vicinity threshold. An estimate role isospin...
Magnetic moments of baryons composed light and strange quarks are computed for the first time through only parameter model---the string tension $\ensuremath{\sigma}.$ For example, ${\ensuremath{\mu}}_{p}{=m}_{p}/c\sqrt{\ensuremath{\sigma}},{\ensuremath{\mu}}_{{\ensuremath{\Omega}}^{\ensuremath{-}}}=\ensuremath{-}{\ensuremath{\mu}}_{p}[1+\frac{3}{4}{(m}_{s}^{2}{/c}^{2}\ensuremath{\sigma})\ensuremath{-}\frac{15}{32}{(m}_{s}^{4}{/c}^{4}{\ensuremath{\sigma}}^{2}){]}^{\ensuremath{-}1},$ where...
A relativistic world-line Hamiltonian for strongly interacting $3q$ systems in a magnetic field is derived from the path integral corresponding Green's function. The neutral baryon obeys pseudomomentum conservation and allows factorization of c.m. internal motion. resulting expression mass written explicitly with account hyperfine, one pion exchange, gluon exchange (color Coulomb) interaction. neutron fast decreasing field, losing $1/2$ its value at $eB\ensuremath{\sim}0.25\text{ }\text{...
We study the relativistic quark-antiquark system embedded in magnetic field (MF). The Hamiltonian containing confinement, color Coulomb and spin-spin interaction is derived. analytically follow evolution of lowest neutral meson state as a function MF strength. Calculating energy $V_{Coul}$ we have observed unbounded negative (at least limit large $N_c$) contribution at which makes mass for $eB> eB^{QCD}_{crit}$. display $\pi^0$ $\rho^0$ masses functions comparison with recent lattice data.
We calculate the rate of neutron–mirror-neutron oscillations for ultracold neutrons trapped in a storage vessel. Recent experimental bounds on oscillation time are discussed.Received 13 April 2008DOI:https://doi.org/10.1103/PhysRevC.77.065504©2008 American Physical Society
We examine what role do collisions with the wall play in neutron-antineutron transitions. The collision time for n and n¯ phase difference between reflected waves are calculated. It is shown that transitions inside negligible.