Zobrazeno 1 - 10
of 138
pro vyhledávání: '"di Bari, Pasquale"'
Autor:
Di Bari, Pasquale
A neutrino Majorana mass generation in the early universe might have left imprints in cosmological observables. It can source the production of a detectable stochastic background of primordial gravitational waves with a spectrum that combines a contr
Externí odkaz:
http://arxiv.org/abs/2406.00525
Publikováno v:
JCAP 04 (2024) 046
The excess radio background detected by ARCADE 2 represents a puzzle within the standard cosmological model. There is no clear viable astrophysical solution, and therefore, it might indicate the presence of new physics. Radiative decays of a relic ne
Externí odkaz:
http://arxiv.org/abs/2312.03082
In the light of the evidence of a gravitational wave background from the NANOGrav 15yr data set, we reconsider the split majoron model as a new physics extension of the standard model able to generate a needed contribution to solve the current tensio
Externí odkaz:
http://arxiv.org/abs/2307.03184
We explore the origin of Majorana masses within the majoron model and how this can lead to the generation of a distinguishable primordial stochastic background of gravitational waves. We first show how in the simplest majoron model only a contributio
Externí odkaz:
http://arxiv.org/abs/2306.04680
Autor:
Di Bari, Pasquale
A solution to the problem of the origin of matter in the universe can be reasonably searched within extensions of the standard model that also explain neutrino masses and mixing. Models embedding the minimal seesaw mechanism can explain the observed
Externí odkaz:
http://arxiv.org/abs/2305.03032
Autor:
Di Bari, Pasquale, Murphy, Adam
The right-handed (RH) Higgs-induced neutrino mixing (RHINO) model explains neutrino masses and origin of matter in the universe within a unified picture. The mixing, effectively described by a dimension five operator, is responsible both for the prod
Externí odkaz:
http://arxiv.org/abs/2210.10801
Autor:
Di Bari, Pasquale
The discovery of gravitational waves opens new opportunities to test BSM physics. In particular, the production of a stochastic background of primordial gravitational waves could provide a signature of the generation of the right-right Majorana neutr
Externí odkaz:
http://arxiv.org/abs/2205.05744
Autor:
Di Bari, Pasquale
The understanding of the physical processes that lead to the origin of matter in the early Universe, creating both an excess of matter over anti-matter that survived until the present and a dark matter component, is one of the most fascinating challe
Externí odkaz:
http://arxiv.org/abs/2107.13750
Publikováno v:
JHEP 2110:193 (2021)
We show how the generation of right-handed neutrino masses in Majoron models may be associated with a first-order phase transition and accompanied by the production of a stochastic background of gravitational waves (GWs). We explore different energy
Externí odkaz:
http://arxiv.org/abs/2106.00025