Conveners
Dynamics of multiparticle production
- Anton Baldin (JINR)
Dynamics of multiparticle production
- Елена Кокоулина (JINR)
Dynamics of multiparticle production
- Женис Мусульманбеков (JINR, LIT)
The gluon dominance model is developed to describe multiparticle production of secondary particles at high energies in lepton and hadron interactions, including annihilation processes and heavy quarkonium decays. According to this model, the multiparticle process is divided into two stages. The first stage describes the development of a quark-gluon cascade as a Markov branching process in the...
Open-charm production constitutes a stringent test of next-to-leading-order (NLO) perturbative QCD, because at the scale of charm quark $\mu \simeq m_c$ the strong coupling constant is already moderately small $\alpha_S \ll 1$. Single Parton Scattering (SPS) calculations alone fail to reproduce the measured DD-pair production. A realistic description may also include either gluon to...
In the theory of the vacuum particle creation in strong fields (Sauter-Schwinger effect) a small number of exactly solvable models acts as benchmarks [1]. In this respect, the nonperturbative kinetic theory methods also hold a prominent place. The analysis performed below is restricted by a class of the quantum kinetic equations of the Vlasov type in the strong electric fields (e. g.,...
The process of hadronization is usually seen as a universal process for all types of colliding particles and at all energies. A regular approach used in existing SoftQCD MC generators is to portray it as Lund quark-gluon string (QGS) fragmentation. However, results from both colliders and cosmic ray experiments indicate the need to transition to non-universal scheme of hadron production in...
Some predictions on D-meson production in soft proton+proton, 2H+2H and 4He+4He interactions at √S=10 and 20 GeV are given for future SPD/NICA experiment using Geant4 FTF model. Essential details of implementation of charmed particle production in the FTF model are considered. Results of model calculations of kinematical properties of the particles produced in hadron-hadron interactions in...
Two-particle femtoscopy via Bose–Einstein correlations (BEC) provides direct access to the space–time structure of particle-emitting sources in relativistic heavy-ion collisions. In this study, we present a systematic analysis of BEC for identical charged pion and kaon pairs in Au+Au collisions at Relativistic Heavy Ion Collider (RHIC) energies. Model calculations were performed using the...
A modern definition of New Physics is proposed.
A correction to the W-boson mass is calculated.
A modern definition of New Physics is proposed.
A correction to the W-boson mass is calculated.
A method for measurement of the fractal dimension for the blackbody derived.
Necessary conditions for existence of the bound states in extended quantum mechanics [1] obtained.
Complex, quaternion...
The production of $K$ mesons in $pp$ and $AA$ collisions at high energies is analyzed. We show that the ratio $R_K~=~\frac{\sigma_{K^+}+\sigma_{K^-}}{2\sigma_{K^0_S}}$ calculated within the similarity approach [1] and using the Lund model in the form of MC generator PYTHIA [2] is above 1 even at the conservation of the isospin-symmetry. It is about 1.18 at $\sqrt{s}=$11.9 GeV (the NA61/SHINE...
The notion of an elementary particle proposed by A.M.Baldin and the ideas of examination of multiple particle production in the space of relative velocities are considered. The transition to the space of relative rapidities (the Lobachevsky space) is substantiated. The connection between the fundamental distance in the rapidity space following from the properties of the Lobachevsky geometry...
The self-similarity approach is used to describe particle production in relativistic particle collisions. The results are based on analysis of the vast experimental material obtained with the bubble chambers. The asymptotic properties of particle production which are intrinsically connected with the properties of the Lobachevsky geometry are demonstrated. It is stated that the Lobachevsky...
An analysis of the geometric properties of rapidity space (Lobachevsky hyperbolic space) in multiple particle production is presented. Experimental data obtained using bubble chambers were analyzed using differential geometry methods. Bimodal angular distributions at nucleon interaction energies of 1.5–10 GeV were examined, indicating a transition from Euclidean to hyperbolic geometry starting...
For the first time in high energy physics, the final state of the reaction with the slow (missing) proton (that is at the region of so called Quasi-Free kinematics) was analyzed essentially in the framework of the 3-body Phase Space.
We present detailed analysis of the γd → πˉp p_S reaction at the initial energy range Eγ = 1.0-3.5 GeV, and missing slow proton momentum ps < 0.2 GeV/c....
In this paper, we study numerical solutions of a system of quantum kinetic equations and Maxwell's equations that describe: (a) the production (in terms of Schwinger effect) and dynamics of charge carriers in a graphene monolayer under the action of a classical spatially homogeneous time-dependent electromagnetic field of linear polarization; (b) classical radiation caused by electric...
