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pro vyhledávání: '"Non-minimal Couplings"'
We analyse the asymptotic symmetries of electromagnetism non-minimally coupled to scalar fields, with non-minimal couplings of the Fermi type that occur in extended supergravity models. Our study is carried out at spatial infinity where minimal and n
Externí odkaz:
http://arxiv.org/abs/2407.06376
Autor:
Inagaki, Tomohiro, Yoshioka, Naoki
Non-thermal fermionic particle production is investigated in Einstein-Cartan modified gravity with a modified Holst term and non-minimal couplings between the spin connection and a fermion. By using the auxiliary field method, the theory is rewritten
Externí odkaz:
http://arxiv.org/abs/2406.14982
We investigate the dynamics of fermion localization within the framework of $f(T, B)$ gravity featuring non-minimal couplings. Starting from the Dirac action for a spin-$1/2$ fermion in a five-dimensional spacetime governed by torsional $f(T, B)$ gra
Externí odkaz:
http://arxiv.org/abs/2407.15190
Autor:
Marroquín, Kevin, Leon, Genly, Millano, Alfredo D., Michea, Claudio, Paliathanasis, Andronikos
Publikováno v:
Fractal Fract. 2024, 8(5), 253
Fractional differential calculus is a mathematical tool that has found applications in the study of social and physical behaviors considered ``anomalous''. It is often used when traditional integer derivatives models fail to represent cases where the
Externí odkaz:
http://arxiv.org/abs/2402.13850
Autor:
Özsoy, Ogan, Tasinato, Gianmassimo
We propose a cosmological dark matter production mechanism in the form of a longitudinal massive vector boson. We build upon the work of Graham et.al. including non-minimal couplings of the massive vector with gravity, developing a well motivated set
Externí odkaz:
http://arxiv.org/abs/2310.03862
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-25 (2024)
Abstract We analyse the asymptotic symmetries of electromagnetism non-minimally coupled to scalar fields, with non-minimal couplings of the Fermi type that occur in extended supergravity models. Our study is carried out at spatial infinity where mini
Externí odkaz:
https://doaj.org/article/6f0c97bd22074dbea81bc43e170adce6
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We consider the effects of non-minimal couplings to curvature of the form $\xi_S S^2 R$, for three types of scalars: the Higgs boson, the inflaton, and a scalar dark matter candidate. We compute the abundance of dark matter produced by these non-mini
Externí odkaz:
http://arxiv.org/abs/2203.02004
Autor:
Wahlang, Wadbor
Publikováno v:
Eur. Phys. J. C 82, 339 (2022)
We study a holographic toy model by considering a probe fermion of finite charge density in an anisotropic background. By computing the fermionic spectral function numerically, we observed that the system exhibits some interesting behaviours in the n
Externí odkaz:
http://arxiv.org/abs/2112.05097