True muonium (TM)—the bound state of μ+ μ-—has not been discovered yet. It was
demonstrated that searching for TM via γ γ fusions in heavy ion collisions is feasible due to …

This is a brief history of photons, both soft and hard, real and virtual. About 150-100 years
ago, Maxwell and Einstein discovered intriguing properties of electromagnetic fields and …

Using a new result on the integral involving the product of Bessel functions and associated
Laguerre polynomials, published in the mathematical literature some time ago, we present …

We discuss the most recent results in studies of high-energy electroproduction in an atomic
field. Production of an e+ e− pair by a relativistic electron, relativistic muon, or light nucleus …

We prove some trigonometric identities involving Chebyshev polynomials of the second
kind. The identities were inspired by atomic form factor calculations. Generalizations of these …

A bound state of muon and anti-muon (true muonium or dimuonium), although predicted
long ago [1, 2, 3, 4], has never been observed experimentally. Many mechanisms for the …

Ultra-peripheral collisions of ultra-relativistic lead ions are a tool for studying γ-nucleus or γγ
interactions at the LHC. Beams of lead ions at the LHC are a source of intense photon fluxes …

Обсуждаются новейшие результаты исследования процесса электророждения в
атомном поле при высоких энергиях. Рассматриваются случаи рождения e eÀ-пары …