The resonating group method (RGM) [1] is a rigorous and self-consistent realization of cluster model. It has been numerously proved the RGM is a powerful tool to study the structure of light atomic nuclei and nuclear reactions of different types. Thus it equally well describes bound and continuous spectrum states. The main advantages of the RGM is that it takes into account the internal...
We will present the results of a study of the bremsstrahlung emission of photons in a process of proton scattering on deuterons. Despite the long history of studies of the interaction of protons with deuterons and the existence of some studies on the subject in such reactions there are some interacting problems that need to be tackled. This stimulates us to develop a new model that allows us...
Collider experiments serve as an unique tool to create and study new forms of strongly interacting matter, such as quark-gluon plasma (QGP). This state of matter is believed to have existed in the microseconds after the Big Bang when temperatures and energy densities were extremely high. However, due to confinement under typical Earth conditions, elementary particles of quantum chromodynamics...
As a part of the ATLAS Collaboration experimental measurements of light-by-light
scattering in Pb+Pb collisions during 2015 and 2018 at an integrated luminosity of 2.2 nb-1 and energy of 5.02 TeV, taking into account the obtained experimental constraints [1], we have modeled the production cross sections of axion production, which is candidate for dark matter with subsequent decay into γγ....
There exist many models of physics beyond the Standard model (SM) which introduce new heavy particles. Signals of such new states could be parametrized either within a complete model of new physics or its low-energy approximation. The latter consists of effective Lagrangian (EL), which describes effects of interactions with heavy particles on the dynamics of light fields when heavy states...
This work examines limitations on the neutrino extension parameters of the Standard Model of elementary particle physics. A simple relationship between the observed quantities, elements of the matrices S and R was obtained, which is valid for non-zero masses of active neutrinos and for different values of masses of heavy sterile neutrinos. Experimental constraints on the elements of the S and...
We extend the Quantum van der Waals description of isospin symmetric nuclear matter at zero temperature to a high baryon density region by incorporating the continuous transition to quark matter in accordance with the recently proposed quarkyonic approach. The resulting equation of state exhibits the nuclear liquid-gas transition at $n_B \leq \rho_0$ and undergoes a transition to quarkyonic...
We study the critical point effects on particle number fluctuations both in the crossover ($T > T_{\rm c}$) and mixed phase ($T < T_{\rm c}$) regions by means of molecular dynamics simulations of a Lennard-Jones fluid, motivated by the ongoing search for the QCD critical point in heavy-ion collisions.
In the crossover region, we find large fluctuations associated with the critical point in...
