My previous calculations of the Lamb shift in muonic hydrogen are reviewed and compared with other work. In addition, numerical results for muonic deuterium are presented. Introduction The energy levels of muonic atoms are very sensitive to effects of quantum electrodynamics (QED), nuclear structure, and recoil, since the muon is about 206 times heavier than the electron [1]. A number of theore...

Corrections of orders α5 and α6 are calculated in the hyperfine splittings of 1S and 2S energy levels in the ion of muonic helium. The electron vacuum polarization effects, the nuclear structure corrections and recoil corrections are taken into account. The obtained numerical values of the hyperfine splittings -1334.56 meV (1S state), -166.62 meV (2S state) can be considered as a reliable estim...

Correlators of magnetic and electric field energy density are investigated for SU(Nc) gauge theory at high temperatures T . At separations z ≤ 2/T the correlators are shown to be dominated by a power–law behavior even for finite gluon screening masses. This continuum behavior is well approximated on current 4×163–lattices in the perturbative limit and leads to a considerable overestimate of scr...

The topic of spacing distributions in random matrix ensembles is almost as old as the introduction of random matrix theory into nuclear physics. Both events can be traced back to Wigner in the mid 1950’s [37, 38]. Thus Wigner introduced the model of a large real symmetric random matrix, in which the upper triangular elements are independently distributed with zero mean and constant variance, fo...

The nuclear fusion data for deuteron-triton resonance near 100 keV are found to be consistent with the selective resonant tunneling model. The feature of this selective resonant tunneling is the selectivity. It selects not only the energy level, but also the damping rate (nuclear reaction rate). When the Coulomb barrier is thin and low, the resonance selects the fast reaction channel; however, ...

Spectrum generating algebras are used in various fields of physics as models to determine quantum structure, including energy levels and transition strengths. The advantage of such models is that their group structure allows an extensive understanding of the system being studied. In addition they possess a simple classical limit, at least for bosonic systems. In this paper we discuss an algebra...

We compute the energy level displacement of the excited np states of kaonic hydrogen within the quantum field theoretic and relativistic covariant model of strong low–energy K̄N interactions suggested in EPJA 21, 11 (2004). For the width of the energy level of the excited 2p state of kaonic hydrogen, caused by strong low–energy interactions, we find Γ2p = 2meV = 3 × 1012 sec−1. This result is im...

We have computed the energy level displacement of the excited np state of kaonic hydrogen within the quantum field theoretic and relativistic covariant model of strong low–energy K̄N interactions suggested in EPJA 21, 11 (2004). For the width of the energy level of the excited 2p state of kaonic hydrogen, caused by strong low–energy interactions, we have got Γ2p = 2meV = 3 × 1012 sec−1. The obta...

We explore a possibility for the Universe to cross the w = −1 cosmological constant barrier for the dark energy state parameter. We consider the Universe as a slowly decaying D3-brane. The D3-brane dynamics is approximately described by a nonlocal string tachyon interaction and a back reaction of gravity is incorporated in the closed string tachyon dynamics. In a local effective approximation t...