Recent results of searches for TeV-scale BSM phenomena in proton-proton collisions at $\sqrt{s} = 13$~TeV with ATLAS detector are presented.
The report covers searches for objects and signatures originating from a variety of SM extensions:extended Higgs sector, extra gauge bosons, heavy and excited quarks leptoquarks, extra dimensions, contact interactions.
The ALICE experiment at the LHC performs comprehensive studies of the QCD matter with pp, p-Pb and Pb-Pb collisions. A complete set of observables measured by ALICE allows one to study particle production in QCD vacuum in pp collisions, investigate initial-state and possible collective effects in p-Pb collisions and explore properties of the deconfined quark-gluon matter at high temperature...
One of the important missions of high energy heavy ion collisions is to reveal the QCD phase structure at finite temperature and baryon density. Lattice QCD simulations are expected to provide valuable information as a first principle calculation of QCD. However, lattice simulations at finite baryon density have suffered from the `sign problem' and no calculations were successful except at...
Continuous material space in the nondual field physics of Einstein and Infeld replaces the assumed emptiness between point particles in the Newton model of reality. The internal heat of circular metric flows creates the elementary mass-energy and this kinetic energy is balanced by the negative self-gravitation energy. The Einstein equation analog for nonequilibrium field densities of moving...
We study numerically the chromoelectric-chromomagnetic asymmetry of the dimension two $A^2$ gluon condensate as well as the {\it transverse and longitudinal} gluon propagators at $T>T_c$ in the Landau-gauge $SU(2)$ lattice gauge theory with a particular emphasis on finite-volume effects. We show that previously found so called symmetric point at which asymmetry changes sign is an artifact of...
The main experimental works, where dipole polarizabilities of charged pions have been determined, are discussed. Possible reasons for the differences between the experimental data are considered. In particular, it is shown that the account of the $\sigma$-meson gives a significant correction to the value of the polarizability obtained in the latest experiment of the COMPASS collaboration.
In this talk we investigate the phase structure of a (1+1)-dimensional schematic quark model with four-quark interaction and in the presence of baryon (µB), isospin (µI) and chiral isospin (µI5) chemical potentials. Spatially inhomogeneous chiral density wave (for chiral condensate) and single wave (for charged pion condensate) approaches are used. It is established that in the large-Nc limit...
The top quark is the heaviest known fundamental particle. As it is the only quark that decays before it hadronizes, this gives us the unique opportunity to probe the properties of bare quarks at the Large Hadron Collider. This talk will present highlights of a few recent precision measurements by the ATLAS Collaboration of the top quark using 13 TeV and 8 TeV collision data: top-quark pair and...
In recent years, several dedicated experiments at the $e^- p$ collider HERA have collected high precision data on the spectrum of leading-neutron and leading-proton carrying a large fraction of the proton's energy. In [Phys. Rev. D 95, 074011 (2017), \, arXiv:1703.04369 [hep-ph]], we propose a technique based on the fractures functions framework and extract the neutron fracture functions...
In February 2016 the LIGO \& VIRGO collaboration reported the discovery of gravitational waves in merging black holes, therefore, the team confirmed GR predictions about an existence of black holes and gravitational waves in the strong gravitational field limit. Moreover, in their papers the joint LIGO \& VIRGO team presented an upper limit on graviton mass such as $m_g < 1.2 \times...
Moderator: Vladimir Petrov
Participants: V. Ezhela, B. Stugu, K. Black, A. Cerveli, O. Zenin, L. Nanni, O. Selyugin
ATLAS results on cross sections and couplings of the higgs boson will be reviewed. Results from the LHC Run1 will be presented followed by available updates using data from Run 2
Majorana CP violating phases coming from heavy right-handed Majorana mass matrices (MRR) are considered to estimate the masses of neutrinos.The effects of phases on quasi-degenerate neutrinos mass matrix obeying µ-τ symmetry predicts the results consistent with observations for (i) solar mixing angle(θ12) below TBM, (ii) absolute neutrino mass parameters[mee] in neutrinoless double beta (0νββ)...
New approach to computation of canonical partition functions in Nf = 2 lattice QCD is presented. Results obtained by the new method are compared with results obtained by known method of hopping parameter expansion.
Results for the number density and canonical partition functions obtained in the confining and deconfining phases at imaginary chemical potential are used to compute physical...
In this talk is presented the problem of a relativistic Dirac half-integer spin free particle tunneling through a rectangular quantum-mechanical barrier. It is supposed that the energy difference between the barrier and the particle is positive and that, within the barrier, the particle behaves like a localized evanescent wave described by the Schrödinger equation. If the barrier width is...
To study the properties of colour particle states behaviour in the QCD vacuum we calculate the density matrix of the system colour particle - stochasticQCD vacuum, considered as environment, and averaged over degrees of freedom of the environment.As a result the density matrix of colour particle is depended on the Wilson loop which depends on spanned area RT. In the stochastic vacuum Wilson...
