Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Arun P. Thomas"'
We study the axion portal between the visible and the dark sector, where the Dark Matter is charged under a simple abelian extension of the Standard Model. In general, such models are anomalous and are rendered gauge invariant by a St\"ukelberg axion
Externí odkaz:
http://arxiv.org/abs/2405.04680
The Einstein-Skyrme system is understood to defy the "no hair" conjecture by possessing black-hole solutions with fractional baryon number outside the event horizon. In this article, we extend the study of the Skyrme system to teleparallel gravity fr
Externí odkaz:
http://arxiv.org/abs/2307.11933
Precision observables are well known for constraining most of the Beyond Standard Model (BSM) scenarios tightly. We present here a simple and comprehensive fitting framework for various BSM scenarios to these observables. We start with the fit of $S$
Externí odkaz:
http://arxiv.org/abs/2301.09273
Publikováno v:
Eur. Phys. J. C (2023) 83:484
The well understood structure of $U_{pmns}$ matrix mandates a Cabibbo mixing matrix in the first two generations of the charged lepton sector if we assume Tri-bimaximal mixing in the neutrino sector. This ansatz, called Tri-bimaximal-Cabibbo mixing,
Externí odkaz:
http://arxiv.org/abs/2301.06942
Autor:
A, Akshay, Arun, Mathew Thomas
Publikováno v:
Phys. Rev. D 109, 095039 (2024)
Proton decay in six dimensions orbifolded on square $T^2/Z_2$ is highly suppressed at tree-level. This is because baryon number violating (BNV) operators containing only the zero mode of bulk fermions must satisfy the selection rule $\frac{3}{2} \Del
Externí odkaz:
http://arxiv.org/abs/2210.02707
Considering a six-dimensional geometry orbifolded on $S^1/Z_2\times S^1/Z_2$ with quarks and leptons localised on orthogonal branes, we show that the construction admits observable $n-\bar{n}$ oscillation while naturally suppressing the proton decay
Externí odkaz:
http://arxiv.org/abs/2205.03846
In this paper we consider semileptonic lepton flavor violating operators of the type $q^2l^2$ in low energy effective theory (LEFT). At the chiral scale, we match these operators to chiral perturbation theory ($\chi$PT) and place constraints from the
Externí odkaz:
http://arxiv.org/abs/2204.06948
Autor:
Arun, Mathew Thomas
The detection of neutron-antineutron oscillation will be a discovery of fundamental importance in particle physics and cosmology. In models discussed widely in literature, the process is generated through heavy New Physics with weak, perturbative, co
Externí odkaz:
http://arxiv.org/abs/2204.06484
Autor:
Arun, Mathew Thomas, Chatterjee, Arpan, Mandal, Tanumoy, Mitra, Subhadip, Mukherjee, Ananya, Nivedita, Krishna
Publikováno v:
Phys.Rev.D 106 (2022) 095035
The $U(1)$ extensions of the Standard Model contain a heavy neutral gauge boson $Z^\prime$. If leptophobic, the boson can evade the stringent bounds from the dilepton resonance searches. We consider two theoretically well-motivated examples of leptop
Externí odkaz:
http://arxiv.org/abs/2204.02949
Autor:
A, Akshay, Arun, Mathew Thomas
The Little Randall-Sundrum (Little RS) model receives significantly stronger constraints from the flavour observables in comparison to Randall-Sundrum (RS) model. In this paper, we analyse the effect of the electro-weak sector in Little RS on flavour
Externí odkaz:
http://arxiv.org/abs/2201.01062