Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Branchina, Vincenzo"'
In [1] we pointed out that in the Dark Dimension scenario [2] theoretical issues arise when the prediction for the vacuum energy $\rho$, that is obtained from swampland conjectures in string theory, is confronted with the corresponding result for $\r
Externí odkaz:
http://arxiv.org/abs/2404.10068
According to the "dark dimension" (DD) scenario, we might live in a universe with a single compact extra dimension, whose mesoscopic size is dictated by the measured value of the cosmological constant. This scenario is based on swampland conjectures,
Externí odkaz:
http://arxiv.org/abs/2308.16548
More than twenty years ago a paradigm emerged according to which a UV-insensitive Higgs mass $m_H$ and (more generally) a UV-insensitive Higgs effective potential $V_{1l}(\phi)$ are obtained from higher-dimensional theories with compact extra dimensi
Externí odkaz:
http://arxiv.org/abs/2304.08040
While it is usually stated that dimensional regularization (DR) has no direct physical interpretation, consensus has recently grown on the idea that it might be endowed with special physical properties that would provide the mechanism that solves the
Externí odkaz:
http://arxiv.org/abs/2204.10582
Publikováno v:
Phys. Rev. D 104, 085010 (2021)
In a recent work the Green's functions of the $\mathcal{PT}$-symmetric scalar theory $g \phi^{2}(i\phi)^\epsilon$ were calculated at the first order of the logarithmic expansion, i.e. at first order in $\epsilon$, and it was proposed to use this expa
Externí odkaz:
http://arxiv.org/abs/2104.12702
A formal expansion for the Green's functions of an interacting quantum field theory in a parameter that somehow encodes its "distance" from the corresponding non-interacting one was introduced more than thirty years ago, and has been recently reconsi
Externí odkaz:
http://arxiv.org/abs/2009.11846
The Higgs effective potential becomes unstable at approximately $10^{11}$ GeV, and if only standard model interactions are considered, the lifetime $\tau$ of the electroweak vacuum turns out to be much larger than the age of the Universe $T_U$. It is
Externí odkaz:
http://arxiv.org/abs/1905.02975
Publikováno v:
Phys. Rev. D 98, 075001 (2018)
We investigate the stability of the Standard-Model Electroweak (EW) vacuum in the presence of Planck-scale suppressed operators of the type $\phi^{2n}/M^{2n-4}_{\rm P}$ that involve the Higgs field $\phi$ and could in principle be induced by quantum
Externí odkaz:
http://arxiv.org/abs/1806.11059
Autor:
Branchina, Carlo1,2 (AUTHOR) carlo.branchina@unical.it, Branchina, Vincenzo3 (AUTHOR) vincenzo.branchina@ct.infn.it, Contino, Filippo3 (AUTHOR) filippo.contino@ct.infn.it, Pernace, Arcangelo3 (AUTHOR) arcangelo.pernace@ct.infn.it
Publikováno v:
International Journal of Geometric Methods in Modern Physics. Oct2024, p1. 19p.
Assuming that the short gamma-ray burst detected by the Fermi Gamma-Ray Space Telescope about 0.4 seconds after the gravitational waves observed by the LIGO and VIRGO Collaborations originated from the same black hole merger event, we perform a model
Externí odkaz:
http://arxiv.org/abs/1604.08530