Zobrazeno 1 - 10
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pro vyhledávání: '"Morisi A"'
We propose an alternative to the axion mechanism for addressing the charge parity (CP) problem in quantum chromodynamics (QCD). Our approach involves imposing CP as an inherent symmetry of the Lagrangian, which is then spontaneously broken. To genera
Externí odkaz:
http://arxiv.org/abs/2407.18161
Autor:
Morisi, Stefano
Within type-I seesaw mechanism it is possible to have large (order one) light-heavy neutrino mixing even in case of low right-handed neutrino mass scale (of the order of GeV). This implies large lepton flavor violation. As example we consider the pro
Externí odkaz:
http://arxiv.org/abs/2403.00983
Autor:
Calabrese, Roberta, Iorio, Alberto Orso Maria, Morisi, Stefano, Ricciardi, Giulia, Vignaroli, Natascia
Despite being remarkable predictive, the Standard Model leaves unanswered several important issues, which motivate an ongoing search for its extensions. One fashionable possibility are the so-called 331 models, where the electroweak gauge group is ex
Externí odkaz:
http://arxiv.org/abs/2312.02287
Autor:
Calabrese, Roberta, Chianese, Marco, Gunn, Jacob, Miele, Gennaro, Morisi, Stefano, Saviano, Ninetta
Publikováno v:
Phys.Rev.D 109 (2024) 10, 103001
We investigate the effects on sub-TeV resonant leptogenesis of Primordial Black Holes with masses from $10^6$ to $\sim 10^9$ g. The latter might dominate the energy content of the Universe altering its evolution and, eventually, diluting the final ba
Externí odkaz:
http://arxiv.org/abs/2311.13276
Autor:
Calabrese, Roberta, Chianese, Marco, Gunn, Jacob, Miele, Gennaro, Morisi, Stefano, Saviano, Ninetta
Publikováno v:
Phys.Rev.D 107 (2023) 12, 123537
We investigate the role that the evaporation of light primordial black holes may have played in the production of the baryon asymmetry of the Universe through the high-scale leptogenesis. In particular, for mass of primordial black hole in the range
Externí odkaz:
http://arxiv.org/abs/2305.13369
Autor:
Calabrese, Roberta, Gunn, Jacob, Miele, Gennaro, Morisi, Stefano, Roy, Samiran, Santorelli, Pietro
Neutrino-nucleus coherent scattering measurements by the COHERENT collaboration provide us with a unique capability to test various beyond the standard model scenarios. In this work, we constrain scalar leptoquarks (LQs) using the COHERENT data. LQs
Externí odkaz:
http://arxiv.org/abs/2212.11210
Autor:
Cacciapaglia, Giacomo, Cagnotta, Antimo, Calabrese, Roberta, Carnevali, Francesco, De Iorio, Agostino, Iorio, Alberto Orso Maria, Morisi, Stefano, Sannino, Francesco
Publikováno v:
Phys.Rev.D 107 (2023) 5, 055033
The Standard Model of Particle Physics and its description of Nature have been recently challenged by a series of precision measurements performed via different accelerator machines. Statistically significant anomalies emerged in the heavy meson phys
Externí odkaz:
http://arxiv.org/abs/2210.07131
Autor:
Morisi, Stefano1,2 (AUTHOR) stefano.morisi@unina.it
Publikováno v:
Symmetry (20738994). Jul2024, Vol. 16 Issue 7, p843. 6p.
Autor:
Chianese, Marco, Fiorillo, Damiano F. G., Mangano, Gianpiero, Miele, Gennaro, Morisi, Stefano, Pisanti, Ofelia
Publikováno v:
Symmetry 2021, 13(8), 1353
The symmetry of the theory of relativity under diffeomorphisms strongly depends on the equivalence principle. Violation of Equivalence Principle (VEP) can be tested by looking for deviations from the standard framework of neutrino oscillations. In re
Externí odkaz:
http://arxiv.org/abs/2107.13013
Autor:
Ambrosone, Antonio, Calabrese, Roberta, Fiorillo, Damiano F. G., Miele, Gennaro, Morisi, Stefano
Recently Dolgov and Pozdnyakov proposed a new baryogenesis mechanism in which baryon asymmetry is produced without violating baryon number at the Lagrangian level. In this scenario, baryon asymmetry is generated by absorption of a new particle X carr
Externí odkaz:
http://arxiv.org/abs/2106.11980