Zobrazeno 1 - 10
of 251
pro vyhledávání: '"Chamoun, N."'
Autor:
Chamoun, N., Lashin, E. I.
We study a neutrino mass matrix texture characterized by a vanishing trace. We highlight the role played by the phases, physical and non-physical, and undergo a thorough phenomenological analysis, first (second) when the non-physical (CP) phases are
Externí odkaz:
http://arxiv.org/abs/2309.03001
Autor:
Chamoun, N., Lashin, E. I.
We study a texture of neutrino mass matrix characterized by two constraints consisting of one equality and another antiequality between two elements corresponding to two pairs of the matrix entries. Amidst such textures, we limit our study to three p
Externí odkaz:
http://arxiv.org/abs/2308.10985
Power-Law inflation with scale factor $a \propto t^m$ is investigated in the context of warm inflation. The treatment is performed in the weak and strong dissipation limits. In addition, we discuss the three common cases for the thermal dissipation c
Externí odkaz:
http://arxiv.org/abs/2212.04935
We present a full phenomenological and analytical study for the neutrino mass matrix characterized by two vanishing $2\times2$ subtraces. We update one past result in light of the recent experimental data. Out of the fifteen possible textures, we fin
Externí odkaz:
http://arxiv.org/abs/2208.10344
Natural Inflation with non minimal coupling to gravity in $R^2$ gravity under the Palatini formalism
Natural Inflation with non-minimal coupling (NMC) to gravity, embodied by a Lagrangian term $\xi \phi^2 R $, is investigated in the context of an extended gravity of the form $R+ \alpha R^2$. The treatment is performed in the Palatini formalism. We d
Externí odkaz:
http://arxiv.org/abs/2202.01002
We show that upon applying Palatini $f(R)$, characterized by an $\a R^2$-term, within a scenario motivated by a temporal variation of strong coupling constant, then one gets a quadratic kinetic energy. We do not drop this term, but rather study two e
Externí odkaz:
http://arxiv.org/abs/2111.05075
We apply the "systematic" $1^{st}$ order cosmological perturbation theory method to re-derive the formulation of an inflationary model generated by variation of constants, then to study the case where it is non-minimally coupled to gravity within bot
Externí odkaz:
http://arxiv.org/abs/2105.00848
We carry out a phenomenological and analytical study of the texture structures for the Majorana neutrino mass matrix characterized by one single equality between two independent matrix elements, with vanishing non-physical phases whose role in the de
Externí odkaz:
http://arxiv.org/abs/2102.08326
Publikováno v:
Phys. Rev. D 103, 035020 (2021)
We consider a texture for the neutrino mass matrix characterized by one vanishing $2\times2$ subtrace. We analyze phenomenologically and analytically all the six possible patterns, and show that all non-singular ones are able to accommodate the exper
Externí odkaz:
http://arxiv.org/abs/2006.10888
Publikováno v:
Phys. Rev. D 104, 015004 (2021)
Inspired by the neutrino oscillations data, we consider the exact $\mu-\tau$ symmetry, implemented at the level of the neutrino mass matrix, as a good initial framework around which to study and describe neutrino phenomenology. Working in the diagona
Externí odkaz:
http://arxiv.org/abs/1905.00675