301 citations · 1.5k across the 84 of their papers we have counts for
22 papers · 1 filter
Nuclear structure functions and EMC effect in a relativistic deuteron
Xianghui Cao, Bheemsehan Gurjar, Vladimir A. Karmanov +1
We investigate the longitudinal momentum distributions (LMDs) of the deuteron using a relativistic deuteron wave function derived from a realistic nucleon-nucleon (NN) interaction…
Helium-3 relativistic wave function in light-front dynamics
Zhimin Zhu, Ziqi Zhang, Kaiyu Fu +1
The relativistic wave function of He nucleus is calculated in the framework of Light-Front Dynamics. It is determined by 32 spin-isospin components, each of which depends on fi…
On cancellation of non-adiabatic and off-shell effects in the antiproton annihilation in deuteron
O. D. Dalkarov, V. A. Karmanov, E. A. Kupriyanova
As known, some approximate approaches to the hadron scattering from nuclei work rather well far beyond the limits of their applicability. This was explained by cancellation of the…
Three-body bound states with zero-range interaction in the Bethe-Salpeter approach
E. Ydrefors, J. H. Alvarenga Nogueira, V. Gigante +2
The Bethe-Salpeter equation for three bosons with zero-range interaction is solved for the first time. For comparison the light-front equation is also solved. The input is the two-…
Ab Initio Approach to the Non-Perturbative Scalar Yukawa Model
Yang Li, V. A. Karmanov, P. Maris +1
We report on the first non-perturbative calculation of the scalar Yukawa model in the single-nucleon sector up to four-body Fock sector truncation (one "scalar nucleon" and three "…
Non-Perturbative Calculation of the Scalar Yukawa Theory in Four-Body Truncation
Yang Li, V. A. Karmanov, P. Maris +1
The quenched scalar Yukawa theory is solved in the light-front Tamm-Dancoff approach including up to four constituents (one scalar nucleon, three scalar pions). The Fock sector dep…
Three different approaches to the same interaction: the Yukawa model in nuclear physics
J. Carbonell, F. de Soto, V. A. Karmanov
After a brief discussion of the meaning of the potential in quantum mechanics, we examine the results of the Yukawa model (scalar meson exchange) for the nucleon-nucleon interactio…
Relativistic descriptions of few-body systems
V. A. Karmanov
A brief review of relativistic effects in few-body systems, of theoretical approaches, recent developments and applications is given. Manifestations of relativistic effects in the…
Antiproton-nucleus electromagnetic annihilation as a way to access the proton timelike form factors
H. Fonvieille, V. Karmanov
Contrary to the reaction pbar + p --> e+ e- with a high momentum incident antiproton on a free target proton at rest, in which the invariant mass M of the (e+ e-) pair is necessari…
Bethe-Salpeter equation in Minkowski space with cross-ladder kernel
V. A. Karmanov, J. Carbonell
A new method for solving the Bethe-Salpeter equation is developed. It allows to find the Bethe-Salpeter amplitudes both in Minkowski and in Euclidean spaces and, as a by product, t…
Recent developments in light-front dynamics
V. A. Karmanov
Recent results on relativistic few body systems, obtained in the framework of light-front dynamics, are briefly reviewed. The following subjects are discussed: two scalar bosons wi…
Critical stability of three-body relativistic bound states with zero-range interaction
V. A. Karmanov, J. Carbonell
For zero-range interaction providing a given mass M_2 of the two-body bound state, the mass M_3 of the relativistic three-body bound state is calculated. We have found that the thr…
Explicitly covariant light-front dynamics and some its applications
V. A. Karmanov, J. Carbonell
The light-front dynamics is an efficient approach to study of field theory and of relativistic composite systems (nuclei at relativistic relative nucleon momenta, hadrons in the qu…
Three-boson relativistic bound states with zero-range interaction
J. Carbonell, V. A. Karmanov
For the zero-range interaction providing a given mass M_2 of the two-body bound state, the mass M_3 of the relativistic three-boson state is calculated. We have found that the thre…
Two-Body Bound States in Light-Front Dynamics
J. Carbonell, M. Mangin-Brinet, V. A. Karmanov
We present the main features of the explicitly covariant Light-Front Dynamics formalism and a summary of our recent works on this topic. They concern the bound states of two scalar…
Two-fermion bound states in the explicitly covariant Light-Front Dynamics
V. A. Karmanov, J. Carbonell, M. Mangin-Brinet
We develop a general method to construct two relativistic fermions bound states with a given , in the framework of the explicitly covariant light-front dynamics.
Antiproton-deuteron annihilation at low energies
V. A. Karmanov, K. V. Protasov, A. Yu. Voronin
Recent experimental studies of the antiproton-deuteron system at low energies have shown that the imaginary part of the antiproton-deuteron scattering length is smaller than the an…
Light-Front Dynamics
V. A. Karmanov
The wave function in relativity is defined, in four-dimensional space, on a space-like three-dimensional plane. The plane, most close to the time-like region, is the light-front pl…
Deuteron electromagnetic form factors in the Light-Front Dynamics
J. Carbonell, V. A. Karmanov
The deuteron form factors are calculated in the framework of the relativistic nucleon-meson dynamics, by means of the explicitly covariant light-front approach. The inflluence of t…
Front-form calculation of the deuteron EM form factors
J. Carbonell, V. A. Karmanov
The deuteron form factors are calculated in the framework of the relativistic nucleon-meson dynamics. The relativistic effects change considerably the S- and D-waves of the deutero…
Explicitly Covariant Light-Front Dynamics and Relativistic Few-Body Systems
J. Carbonell, B. Desplanques, V. A. Karmanov +1
The wave function of a composite system is defined in relativity on a space-time surface. In the explicitly covariant light-front dynamics, reviewed in the present article, the wav…
The nucleon wave function in light-front dynamics
V. A. Karmanov
The general spin structure of the relativistic nucleon wave function in the -model is found. It contains 16 spin components, in contrast to 8 ones known previously, since in a…