Zobrazeno 1 - 10
of 16
pro vyhledávání: '"E. Ya Nugaev"'
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-39 (2022)
Abstract We consider oscillons — localized, quasiperiodic, and extremely long-living classical solutions in models with real scalar fields. We develop their effective description in the limit of large size at finite field strength. Namely, we note
Externí odkaz:
https://doaj.org/article/f744fc5d24ec468c9bba77c6f1978b0b
Autor:
E. Ya. Nugaev, Andrey Shkerin
Publikováno v:
Journal of Experimental and Theoretical Physics. 130:301-320
We provide a review of non-topological solitonic solutions arising in theories with a complex scalar field and global or gauge $U(1)$-symmetry. It covers Q-balls, homogeneous charged scalar condensates, and nonlinear localized holes and bulges in a c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::537dfa8eb89ee6b8c2323bcb9c5c54d9
https://doi.org/10.1134/s1063776120020077
https://doi.org/10.1134/s1063776120020077
Profiles of static solitons in one-dimensional scalar field theory satisfy the same equations as trajectories of a fictitious particle in multidimensional mechanics. We argue that the structure and properties of the solitons are essentially different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37f39992290488f4d85bfea3ed1e0b5e
Autor:
E. Ya. Nugaev
Publikováno v:
Communications in Nonlinear Science and Numerical Simulation. 20:443-446
We apply the Hubbard-Stratanovich transformation to the Lagrangian for nontopological solitons of the Coleman type in a two-dimensional theory. The resulted theory with an extra real scalar field can be supplemented with a cubic term to obtain a mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a686d3f80dab7f6e9c6f5b50442d66c8
https://doi.org/10.1016/j.cnsns.2014.06.016
https://doi.org/10.1016/j.cnsns.2014.06.016
Autor:
A. V. Kovtun, E. Ya. Nugaev
We discuss stability of Q-balls interacting with fermions in theory with small coupling constant g. We argue that for configurations with large global U(1)-charge Q the problem of classical stability becomes more subtle. For example, in model with fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cef12b281dd1fcb3866f741444666051
Publikováno v:
Physical Review D. 92
In this paper we examine the properties of $U(1)$ gauged Q-balls in two models with different scalar field potentials. The obtained results demonstrate that in the general case $U(1)$ gauged Q-balls possess properties, which differ considerably from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d65d0847a9ed07e00f3fa04123a4554
https://doi.org/10.1103/physrevd.92.045011
https://doi.org/10.1103/physrevd.92.045011
Autor:
Dmitry Gorbunov, E. Ya. Nugaev
Publikováno v:
Phys.Lett.
Superluminal neutrinos are expected to lose energy due to bremsstrahlung. It is dominated by e + e − -pair production if kinematically allowed. The same signature was used in searches for 3-body decays of hypothetical heavy sterile neutrinos. From
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c0d6ba0cea28d3e79b5b04f7d08b14a
Autor:
E. Ya. Nugaev, Maxim Libanov
Publikováno v:
Surveys in High Energy Physics. 17:165-171
One of the most interesting puzzles of the Standard Model (SM) fermions, the origin of the hierarchical fermionic mass pattern, is considered in the context of extra-dimensional physics. Two different scenarios of hierarchy production are described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f1a267c8318ba6c17f4f43257b3ff2f
https://doi.org/10.1080/0142241021000054167
https://doi.org/10.1080/0142241021000054167
Publikováno v:
Physical Review D. 89
In this paper, the main properties of ($3+1$)-dimensional $U(1)$ gauged $Q$ balls are examined. In particular, it is shown that the relation $\frac{dE}{dQ}=\ensuremath{\omega}$ holds for such gauged $Q$ balls in the general case. As a consequence, it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::879cbada3c5f18bea13383bc275e481d
https://doi.org/10.1103/physrevd.89.085006
https://doi.org/10.1103/physrevd.89.085006
Publikováno v:
Physical Review D. 87
Explicit solutions for extended objects of a Q-ball type were found analytically in a model describing complex scalar field with piecewise parabolic potential in (3+1)- and (1+1)-dimensional space-times. Such a potential provides a variety of solutio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::444c76e9c9a26a92f176a5678dfaa6b1
https://doi.org/10.1103/physrevd.87.085043
https://doi.org/10.1103/physrevd.87.085043