A measurement of the underlying activity in scattering processes with p T scale in the GeV region is performed in proton–proton collisions at √ s = 0.9 TeV, using data collected by the CMS experiment at the LHC. Charged particle production is studied with reference to the direction of a leading object, either a charged particle or a set of charged particles forming a jet. Predictions of several...

Abstract We study the circular orbits of charged particles around a weakly Kerr black hole immersed in weak, axisymmetric magnetic field. First, we review neutral particles. then and magnetized hole. The case is investigated thereafter. investigate, particular, effect electromagnetic forces on particles’ innermost stable orbits. examine conditions for existence negative-energy possibility emerg...

Thermally induced particle flow in a charged colloidal suspension is studied in a fluid-mechanical approach. The force density acting on the charged boundary layer is derived in detail. From Stokes' equation with no-slip boundary conditions at the particle surface, we obtain the particle drift velocity and the thermophoretic transport coefficients. The results are discussed in view of previous ...

Various properties of open strings in external constant E.M. fields are reviewed. In particular, the charged-particle pair production rate in an external electric field is evaluated, and shown to reduce to Schwinger’s formula in the limit of low-intensity fields. Open strings in external magnetic fields are shown to undergo an infinite number of phase transitions as the strenght of the field in...

Results from the multiplicity distributions of inclusive photons and charged particles, scaling of particle multiplicities, event-by-event multiplicity fluctuations, and chargedneutral fluctuations in 158·A GeV Pb+Pb collisions are presented and discussed. A scaling of charged particle multiplicity as N part and photons as N 1.12±0.03 part have been observed, indicating violation of naive wound...

In present paper we construct classical and quantum models of an extended charged particle. One shows that consecutive modelling might be founded on the hollow charged texture which acquires gravitational mass due to the electromagnetic interaction. We demonstrate that such a model has equilibrium states at the radius equal to the classical radius of a charged particle. Also we consider quantum...

In this paper, we give an analytical approximate solution for an integro- differential equation which describes the charged particle motion for certain configurations of oscillating magnetic fields is considered. The homotopy analysis method (HAM) is used for solving this equation. Several examples are given to reconfirm the efficiency of these algorithms. The results of applying this procedure...