Zobrazeno 1 - 10
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pro vyhledávání: '"Loewe M"'
We explore the meromorphic structure of the $\zeta$-function associated to the boundary eigenvalue problem of a modified Sturm-Liouville operator subject to spectral dependent boundary conditions at one end of a segment of length $l$. We find that it
Externí odkaz:
http://arxiv.org/abs/2410.20437
In the frame of the linear sigma model and working in the weak field approximation, we discuss the role played by an external electric field on the behavior of $\pi$-$\pi$ scattering lengths. For this purpose, we have considered all relevant one-loop
Externí odkaz:
http://arxiv.org/abs/2410.19918
In this article we analyze the role of an external electric field, in the weak field approximation, on $\pi$-$\pi$ scattering lengths. The discussion is presented in the frame of the linear sigma model. To achieve this, we take into account all one-l
Externí odkaz:
http://arxiv.org/abs/2404.01927
Using appropriate QCD finite energy sum rules, we discuss the influence of an external magnetic field and baryonic density on the axial-vector coupling constant $g_{A}$. This scenario corresponds to a magnetar environment. We found that $g_{A}$ decre
Externí odkaz:
http://arxiv.org/abs/2309.05807
In this article we address the subject of finding the behavior of a charged scalar field $\phi$ under the influence of external constant magnetic and electric fields, perpendicular to each other, including also thermal effects. For this purpose we de
Externí odkaz:
http://arxiv.org/abs/2207.12387
Autor:
Loewe, M., Zamora, R.
In this article we revisit the discussion of renormalons in the frame of a scalar self-interacting $\lambda \phi^{4}$ theory in the presence of thermomagnetic effects, i.e magnetic and thermal effects. Our results for the evolution of the residues is
Externí odkaz:
http://arxiv.org/abs/2202.08873
In this article we explore the phase diagram associated to the symmetry breaking of a scalar self interacting theory, induced by temperature and the presence of an external electric field. For such purpose, first we obtain the boson propagator, in th
Externí odkaz:
http://arxiv.org/abs/2112.13872
Publikováno v:
In Nuclear and Particle Physics Proceedings April 2024 343:43-47
Publikováno v:
Phys. Rev. D 104, 016020 (2021)
In this article we extend a previous discussion about the influence of an external magnetic field on renormalons in a self interacting scalar theory by including now temperature effects, in the imaginary formalism, together with an external weak exte
Externí odkaz:
http://arxiv.org/abs/2105.01156
Publikováno v:
Phys. Rev. D 104, 016006 (2021)
We revisit the calculation of the fermion self-energy in QED in the presence of a magnetic field. We show that, after carrying out the renormalization procedure and identifying the most general perturbative tensor structure for the modified fermion {
Externí odkaz:
http://arxiv.org/abs/2104.04019