Zobrazeno 1 - 10
of 295
pro vyhledávání: '"A, Branchina"'
Autor:
Branchina, Carlo, Conaci, Angela, De Curtis, Stefania, Rose, Luigi Delle, Guiggiani, Andrea, Muyor, Angel Gil, Panico, Giuliano
First order phase transitions in the early universe may have left a variety of experimentally accessible imprints. The dynamics of such transitions is governed by the density perturbations caused by the propagation of the bubble wall in the false vac
Externí odkaz:
http://arxiv.org/abs/2410.00766
Recently, the experimental values of the muon $(g-2)_\mu$ and of the $W$ boson mass $m_{_W}$ have both indicated significant deviations from the SM predictions, motivating the exploration of extensions with extra particles and symmetries. We revisit
Externí odkaz:
http://arxiv.org/abs/2407.14826
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
We present a radically new proposal for the solution of the naturalness/hierarchy problem, where the fine-tuning of the Higgs mass finds its physical explanation and the well-known multiplicative renormalization of the usual perturbative approach eme
Externí odkaz:
http://arxiv.org/abs/2208.05431
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
We consider a set of elementary compactifications of $D+1$ to $D$ spacetime dimensions on a circle: first for pure general relativity, then in the presence of a scalar field, first free then with a non minimal coupling to the Ricci scalar, and finall
Externí odkaz:
http://arxiv.org/abs/2210.00477
Einstein-Maxwell-dilaton theory with non-trivial dilaton potential is known to admit asymptotically flat and (Anti-)de Sitter charged black hole solutions. We investigate the conditions for the presence of horizons as function of the parameters mass
Externí odkaz:
http://arxiv.org/abs/2105.09800
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