arXiv subjects

Gayatri Ghosh

Publications and source records attributed to Gayatri Ghosh.

At least 19 recordsLinked to original sources

arXiv2026

Quantum-Kinetic Leptogenesis and Gravitational Waves from Seesaw-Assisted Domain-Wall Dynamics

We investigate the connection between resonant leptogenesis and a primordial stochastic gravitational-wave background in a minimal two-right-handed-neutrino type-I seesaw with a real singlet scalar. The scalar sector admits a $\mathbb Z_2$-symmetric tree-level potential, while the tiny right-handed-neutrino coupling to the $\mathbb Z_2$-odd scalar generates a radiative vacuum-energy bias that causes the domain-wall network to annihilate. For quasi-degenerate heavy neutrinos, we describe the heavy-neutrino system with a density-matrix kinetic framework and use the ratio $r_q=\Delta M/\Gamma_{N_1}$ as an organizing variable for the separated, resonant and coherent regimes. The heavy-neutrino parameters that control the physical mass splitting also enter the radiatively generated domain-wall bias, providing a model-dependent link between the quantum-kinetic baryon asymmetry and the gravitational-wave peak frequency and amplitude. We emphasize that the gravitational- wave signal is not a direct measurement of an individual low-energy neutrino parameter; rather, it provides a model-dependent consistency relation among neutrino data, resonant leptogenesis, domain-wall annihilation and the stochastic gravitational-wave background.

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arXiv2026

Neutrino Oscillations as an Open Quantum System in Strong Gravitational Fields: Spin-Connection Decoherence and Kerr Frame Dragging

We investigate neutrino flavor evolution in strong gravitational fields within an open-quantum-system framework in curved spacetime. Starting from the Dirac equation in the vierbein formalism, we construct an effective flavor Hamiltonian incorporating gravitational redshift, spin--curvature couplings, and Kerr frame-dragging effects. Treating spin-connection fluctuations as a stochastic gravitational environment, we derive a Lindblad master equation and introduce a curvature-enhanced decoherence rate governed by local spacetime geometry. We compute oscillation probabilities, coherence loss, flavor-ratio distortions, entanglement entropy generation, and event-rate modifications for neutrinos propagating near Schwarzschild and Kerr compact objects. The resulting signatures are compared with projected sensitivities of IceCube-Gen2, KM3NeT, and P-ONE, and are further quantified through detector-level significance estimates. Our results provide a unified effective framework linking neutrino oscillations, gravitationally induced decoherence, quantum-information observables, and high-energy astrophysical neutrino measurements in strong-curvature environments.

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arXiv2026

Pseudo-Goldstone Neutrinos and Majoron Phenomenology from Spontaneous $U(1){L\mu-L_\tau}$ Breaking

We present a predictive framework for neutrino mass generation based on the spontaneous breaking of a leptonic $U(1)_{L_\mu-L_\tau}$ symmetry within a supersymmetric setting. The breaking of the global symmetry gives rise to a Majoron-like axion-like particle and a pseudo-Goldstone right-handed neutrino whose mass is naturally suppressed by supersymmetry-breaking effects. The interplay between the pseudo-Goldstone neutrino and the low-scale seesaw mechanism leads to a structured neutrino mass matrix capable of reproducing the observed neutrino masses, mixing angles, and CP-violating phase without invoking extreme parameter hierarchies. We perform a numerical fit to current neutrino oscillation data and identify representative benchmark solutions consistent with laboratory constraints as well as cosmological and astrophysical bounds. A characteristic outcome of the framework is the emergence of correlated relations linking the symmetry breaking scale, heavy neutrino masses, Majoron couplings, and neutrino lifetimes. Majoron-induced invisible neutrino decay arises generically and can significantly modify cosmological neutrino mass constraints for sufficiently low symmetry breaking scales. We discuss the phenomenological implications across neutrino oscillation experiments, cosmology, and collider searches for long-lived heavy neutrinos. While a detailed experimental simulation is beyond the scope of this work, existing sensitivity projections indicate that portions of the parameter space may become accessible in future facilities. The combined interplay of laboratory probes and cosmological observations provides a consistent and testable picture of neutrino mass generation tied to spontaneous leptonic symmetry breaking and axion-like physics.

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arXiv2026

Axion-like particles from soft supersymmetry breaking

We study a supersymmetric effective field theory in which the mass of an axion-like particle (ALP) is generated predominantly by soft supersymmetry-breaking effects. The Peccei--Quinn symmetry is exact in the supersymmetric limit and is explicitly broken only by soft terms induced by supergravity, leading to a naturally heavy ALP whose mass is controlled by the supersymmetry-breaking scale. We analyze the resulting ALP, saxion, and axino spectrum and investigate the phenomenological implications for laboratory searches, astrophysical observations, and cosmology. The framework is treated as an effective field theory without specifying a unique ultraviolet completion, and no attempt is made to explain the origin of a small strong CP phase, which is assumed to be suppressed by ultraviolet physics or by an independent mechanism. Instead, the focus is on the generic and testable phenomenology of heavy axion-like particles whose masses arise from supersymmetry breaking.

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arXiv2025

Hybrid Type-I and Type-II Leptogenesis in Minimal Renormalizable $\mathrm{SO}(10)$

We investigate flavoured hybrid leptogenesis in a minimal renormalizable $\mathrm{SO}(10)$ framework in which both Type-I and Type-II seesaw interactions contribute to the generation of the cosmological baryon asymmetry. We consider a regime where heavy Majorana neutrinos and electroweak scalar triplets are independently quasi-degenerate, leading to resonant enhancement in each sector, while additional CP-violating contributions arise from loop-induced interference between fermionic and scalar interactions. These hybrid contributions vanish if either sector is absent, providing a genuinely new source of CP violation beyond conventional single-sector leptogenesis. The evolution of the lepton asymmetry is studied using a flavour-covariant density-matrix formalism that consistently incorporates flavour coherence, spectator effects, and washout processes. We show that the observed baryon asymmetry, $Y_B\simeq8.7\times10^{-11}$, can be reproduced for representative parameter regions with heavy mass scales of $10^{10}$--$10^{12},\mathrm{GeV}$ and perturbative Yukawa couplings. To characterize the flavour structure of the hybrid interference terms, we introduce the scalar quantity [ J_{\rm hybrid}={\rm Im}!\left[\mu,{\rm Tr}!\left(fY_\nu^\dagger Y_\nu\right)\right], ] which provides a compact parametrization of the flavour contractions entering the hybrid amplitudes in the flavour basis adopted here. We emphasize that it serves as a convenient diagnostic of the hybrid interference terms rather than a complete basis-independent measure of CP violation. The same interactions responsible for baryogenesis can also induce charged-lepton flavour violation and electric dipole moments, linking neutrino mass generation, grand unification, and future precision searches for CP violation.

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arXiv2025

Radiative $\mu-\tau$ Corrections and Renormalization of Neutrino Mass Operators in Type II Seesaw Models

We explore the impact of radiative $\mu-\tau$ corrections on the renormalization of neutrino mass operators in the Type II Seesaw framework, incorporating both dimension-five and dimension-six operators. Using renormalization group equations (RGE), we analyze the evolution of flavor coupling matrices and their deviations from $\mu-\tau$ symmetric configurations due to quantum corrections. Given the stringent constraints from the Large Hadron Collider (LHC) on the triplet scalar masses and couplings, we examine how these bounds influence the viability of $\mu-\tau$ symmetric seesaw models. Our analysis highlights the interplay between high-scale $\mu-\tau$ symmetry predictions and low-scale phenomenology, revealing whether radiative corrections remain within experimentally allowed limits.

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arXiv2025

The Weak Gravity Conjecture in Asymptotically Safe Quantum Gravity

The Weak Gravity Conjecture (WGC) posits that gravity must be the weakest force in any consistent theory of quantum gravity. Originally formulated to constrain the landscape of effective field theories arising from string theory, the WGC suggests the existence of states with a charge-to-mass ratio larger than that of extremal black holes. In this work, we revisit the WGC within the framework of Asymptotically Safe Quantum Gravity, a non-perturbative approach where gravitational and gauge couplings flow to a non-Gaussian ultraviolet (UV) fixed point. We construct a scale-dependent effective action, derive quantum-corrected Reissner--Nordstr\"om black hole solutions by incorporating position-dependent renormalization scale identification, and compute leading quantum corrections to the extremality condition. Our key finding is that the quantum correction to the extremal charge-to-mass ratio is dominantly governed by the running of the gauge coupling, characterized by a correction parameter $\delta \sim \epsilon_e (\ell_P/r_+)^{2\theta}$, where $\epsilon_e$ captures deviations from infrared behavior. We show that if the electromagnetic coupling grows in the UV ($\epsilon_e > \epsilon_G$), the WGC is dynamically strengthened, whereas if it decreases ($\epsilon_e < \epsilon_G$), large extremal black holes may violate the WGC unless additional light charged states exist. Our analysis demonstrates that Asymptotic Safety provides a concrete ultraviolet mechanism influencing low-energy swampland criteria, offering a deep UV/IR connection between quantum gravity consistency and effective field theory behavior.

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arXiv2024

CP Violation and Flavour-Violating Di-Higgs Couplings in the Randall-Sundrum Model

The Randall-Sundrum (RS) model offers a compelling framework to address the hierarchy problem and provides new sources of CP violation beyond the Standard Model (SM). The motivation for studying CP violation in the RS model arises from the insufficiency of CP-violating phases in the SM to account for the observed matter-antimatter asymmetry in the universe. In this work, we explore CP violation through flavour-violating di-Higgs couplings, which emerge due to the localization of bulk fermions and the Higgs near the TeV brane. The analysis focuses on the role of these couplings in di-Higgs production and decay processes, leading to enhanced CP-violating effects. Numerical simulations show that the predicted CP-violating observables are within experimental bounds and could be tested in future collider experiments. The study concludes that flavour-violating di-Higgs couplings in the RS model offer a promising avenue for discovering new sources of CP violation, with significant implications for both collider physics and the understanding of the matter-antimatter asymmetry.

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arXiv2024

Annihilation of NMSSM neutralinos and Branching Ratios, Particle Decay Channel of lightest CP odd, even Higgs in NMSSM

The next$-$to$-$minimal supersymmetric standard model (NMSSM) featuring constrained mSUGRA model, has the capability to inherently anticipate a light dark matter component within the existing limitations encompassing Higgs data, sparticle$-$mass constraints, dark matter exploration, muon g-2. We examine neutralino dark matter within the NMSSM framework by conducting a comprehensive analysis of its parameter space. This involves evaluating neutralino capture and annihilation rates within the Sun. The exploration of potential detection strategies for neutralino dark matter in neutrino experiments hinges on the composition of neutralinos and their primary annihilation pathways. Our study also involves reassessing the maximum thresholds for branching ratios of lepton flavour violation decays $BR(\mu\rightarrow e+\gamma)$, $BR(\tau\rightarrow e+\gamma)$ by directly referencing the constrained limits on $ \Delta a_{\mu} $ from $ g_{\mu}-2 $ experiment. This work also presents constraints of muon flux, photon, positron and antiproton flux, specifically its independence from experimental intricacies and the universal applicability of recalculation coefficients across NMSSM model. Within the scope of this research, we have chosen to utilize this NMSSM scenario as a case study to investigate the funnel$-$ annihilation mechanisms pertaining to light dark matter and the concealed Higgs decay. In this particular scenario, our findings reveal that there exist decay channel$-$annihilation mechanisms for the lightest supersymmetric particle $ \tilde{\chi_{1}^{0}} $, which include the $h_{2}, h_{1}, Z, W^{+}, W^{-}, G, s, S, b, B, c, C, a, A, d, D, l, L $ decay funnels.

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arXiv2023

FCNCs, Proton Stability, $ g_{\mu}-2$ Discrepancy, Neutralino cold Dark Matter in Flipped $SU(5) \times U(1)_{\chi}$ from $F$ Theory with $ A_{4} $ Symmetry

We predict the low energy signatures of a Flipped $SU(5) \times U(1)_{\chi}$ effective local model , constructed within the framework of F$-$theory based on $ A_{4} $ symmetry. The Flipped SU(5) model from F Theory in the field of particle physics is prominent due to its ability to construct realistic four$-$dimensional theories from higher$-$dimensional compactifications which necessitates a unified description of the fundamental forces and particles of nature, used for exploring various extensions of the Standard Model. We study Flipped $SU(5) \times U(1)_{\chi}$ Grand Unified Theories (GUTs) with $ A_{4} $ modular symmetry. In our model due to different modular weights assignments, the fermion mass hierarchy exists with different weighton fields. The constraints on the Dirac neutrino Yukawa matrix allows a good tuning to quark and charged lepton masses and mixings for each weighton field, with the neutrino masses and lepton mixing well determined by the type I seesaw mechanism which occurs at the expense of some tuning which manifests itself in charged lepton flavour violating decays which we explore here. The minimal Flipped $SU(5$) model is supplemented with an extra right$-$handed type and its complex conjugate electron state, $ E_{c} + \bar{E_{c}} $, as well as neutral singlet fields. The $ E_{c} + \bar{E_{c}} $ pair gets masses of the order of TeV which solves the $ g_{\mu}- 2$ discrepancy. The predictions of the model for charged lepton flavour violation decay rate and proton decay could be tested in near future experiments. Also we detect in our model the existence of neutralino, its charge mass and spin via direct and indirect detection.

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arXiv2022

Majorana Neutrinos and Clockworked Yukawa Couplings contribution to non-observation of the rare leptonic decay $ l_{i}\rightarrow l_{j} \gamma $, Clockwork Photon and Clockwork Graviton

The clockwork is an extra-dimensional set-up for generating light particles with exponentially suppressed or hierarchical couplings of light particles with N massive states having comparable masses near the threshold scale of the mechanism in theories which contain no small parameters at the fundamental level. We explore the prospect of charged lepton flavour violation (cLFV) in a clockwork framework which encompasses Dirac mass terms as well as Majorana mass terms for the new clockwork fermions. We deive the masses of the non zero clockwork Majorana masses, and new particles in a clockwork framework and for their Yukawa couplings to the lepton doublets, in the framework where the clockwork parameters are universal. When the new clockwork Majorana masses are non zero, neutrino masses are generated as a result from the exchange of heavy messenger particles such as right handed iso$-$singlet neutrinos or iso$ - $triplet scalar bosons known as the seesaw mechanism. In the case of non zero clockwork Majorana masses, owing to the sizable effective Yukawa couplings of the higher mass modes neutrino masses can only be made tiny by conjecturing large Majorana mass in the teraelectron volt range for allthe clockwork gears. This is apparent from the constraints on the mass scale of the clockwork fermions due to the non-observation of the rare cLFV decay $ \mu\rightarrow e\gamma $, $ \tau \rightarrow \mu \gamma $, $ \tau\rightarrow e\gamma $. A general description of the clockwork mechanism valid for fermions, gauge bosons, and gravitons is discussed here. This mechanism can be implemented with a discrete set of new fields or, in its continuum version, through an extra spatial dimension.

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arXiv2021

Non$-$zero $ \theta_{13} $ and $ \delta_{CP} $ phase with $ A_{4} $ Flavor Symmetry and Deviations to Tri$-$Bi$-$Maximal mixing via $ Z_{2} \times Z_{2}$ invariant perturbations in the Neutrino sector

In this work, a flavour theory of a neutrino mass model based on $ A_{4} $ symmetry is considered to explain the phenomenology of neutrino mixing. The spontaneous symmetry breaking of $ A_{4} $ symmetry in this model leads to tribimaximal mixing in the neutrino sector at a leading order. We consider the effect of $ Z_{2} \times Z_{2}$ invariant perturbations in neutrino sector and find the allowed region of correction terms in the perturbation matrix that is consistent with 3$ \sigma $ ranges of the experimental values of the mixing angles. We study the entanglement of this formalism on the other phenomenological observables, such as $ \delta_{CP} $ phase, the neutrino oscillation probability $ P(\nu_{\mu}\rightarrow \nu_{e} )$, the effective Majorana mass $ |m_{ee} |$ and $ |m^{eff}_{\nu e} |$. A $ Z_{2} \times Z_{2}$ invariant perturbations in this model is introduced in the neutrino sector which leads to testable predictions of $ \theta_{13} $ and CP violation. By changing the magnitudes of perturbations in neutrino sector, one can generate viable values of $ \delta_{CP} $ and neutrino oscillation parameters. Next we investigate the feasibility of charged lepton flavour violation in type-I seesaw models with leptonic flavour symmetries at high energy that leads to tribimaximal neutrino mixing. We consider an effective theory with an $A_{4} \times Z_{2} \times Z_{2} $ symmetry, which after spontaneous symmetry breaking at high scale which is much higher than the electroweak scale leads to charged lepton flavour violation processes once the heavy Majorana neutrino mass degeneracy is lifted either by renormalization group effects or by a soft breaking of the $ A_{4} $ symmetry. In this context the implications for charged lepton flavour violation processes like $ \mu \rightarrow e \gamma $, $ \tau \rightarrow e \gamma $, $ \tau \rightarrow \mu \gamma $ are discussed.

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arXiv2020

Significance of broken $ μ-τ$ Symmetry in correlating $ δ_{CP} $, $ θ_{13} $, Lightest neutrino Mass and neutrinoless double beta decay $ 0νββ$

Leptonic CP Violating Phase $ δ_{CP} $ in the light neutrino sector and leptogenesis via present matter antimatter asymmetry of the Universe entails each other. Probing CP violation in light neutrino oscillation is one of the challenging tasks today. The reactor mixing angle $ θ_{13} $ measured in reactor experiments, LBL, DUNE with high precision in neutrino experiments indicates towards the vast dimension of scope to detect $ δ_{CP} $. The correlation between leptonic Dirac CPV phase $ δ_{CP} $, reactor mixing angle $ θ_{13} $, lightest neutrino mass $ m_{1} $ and matter antimatter asymmetry of the Universe within the framework of $ μ-τ$ symmetry breaking assuming the type I seesaw dominance is extensively studied here. Small tiny breaking of the $ μ-τ$ symmetry allows a large Dirac CP violating phase in neutrino oscillation which in turn is characterised by awareness of measured value of $ θ_{13} $ and to provide a hint towards a better understanding of the experimentally observed near maximal value of $ ν_μ -ν_τ $ mixing angle $ θ_{23}\simeq \fracπ{4}$. Precise breaking of the $ μ-τ$ symmetry is achieved by adding a 120 plet Higgs to the 10 $+$ $\bar{126}$ dimensional representation of Higgs. The estimated three dimensional density parameter space of lightest neutrino mass $ m_{1} $, $ δ_{CP} $, reactor mixing angle $ θ_{13} $, is constrained here for the requirement of producing the observed value of baryon asymmetry of the Universe through the mechanism of leptogenesis. Carrying out numerical analysis the allowed parameter space of $ m_{1} $, $ δ_{CP} $, $ θ_{13} $, is found out which can produce the observed baryon to photon density ratio of the Universe.

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arXiv2019

Analytical Soft SUSY Spectrum in Supersymmetric Models in Light of $ S_{4} \times Z_{n} $ flavor symmetric SUSY SO(10) theory

The heavy right-handed neutrinos in supersymmetric models can act as the source of lepton flavor violation (LFV). LFV processes like $ μ\rightarrow e γ$, $ τ\rightarrow μγ$, $ τ\rightarrow e γ$ is an effective way to explore new physics beyond the SM. Among the possible processes, $ μ$ decays have the greatest discovery potential in most of the supersymmetric models. Experimental inference of lepton flavor-violating processes within a supersymmetric type-II seesaw framework in the non-universal Higgs model (NUHM) and non-universal Scalar Mass model for Yukawa mixing scenarios in the $ S_{4} $ theory with an additional discrete symmetry is presented. The numerical analysis includes full 2 loop renormalization group running effects for the the above mentioned Yukawa coupling matrices. The projected discovery reach of LFV experiments (MEG-II) is mentioned and those regions in mSUGRA, NUHM, NUSM models that have already been excluded by the LHC searches or that which is probed by MEG experiments is specified here. The results presented in this work can influence experimental challenges and physics motivations to construct various BSM theories and sensitivity to test these theories at next run of HE/HL LHC is also considered.

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arXiv2019

Probing new physics in rare decays of b-flavored Hadrons $b\to s \gamma$ in CMSSM/mSUGRA SUSY SO (10) theories

The implications of the latest measurement of the branching fraction of B($ b\rightarrow s \gamma $) of b hadrons, which is another signature of New Physics beyond Standard Model is presented here. The quark transitions $ b \rightarrow s $, $ b \rightarrow d $ do not happen at tree level in the Standard Model as the Z boson does not couple to quarks of different flavour. In this work the present bounds on the quark transition $ b \rightarrow s $ within the constrained minimal supersymmetric extension of the Standard Model (CMSSM), in which there are three independent soft SUSY breaking parameters $ m_{0} $, $ m_{1/2} $ and $ A_{0} $ is illustrated. The recent constraint on B($ b\rightarrow s \gamma $), B($ b_{s}\rightarrow \mu^{+}\mu^{-}$), the recently measured value of Higgs mass at LHC, $ M_{h} $, the value of $\theta_{13}$ from reactor data and the Higgs branching ratios set very strong constraints on New Physics models, in particular supersymmetry. A new epoch for this research has begun since the Large Hadron Collider beauty (LHCb) experiment started affording data for various observables for these decays. The results presented here in mSUGRA/CMSSM models may gain access to supersymmetry even at scales beyond the direct reach of the LHC and the susceptibleness to test these theories at the next run of LHC is also explored.

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arXiv2017

Effects Of leptonic non-unitarity on lepton flavor violation, neutrino oscillation, leptogenesis and lightest neutrino mass

Neutrino Physics is a mature branch of science with all the three neutrino mixing angles and two mass squared differences determined with high precision. Inspite of several experimental verifications of neutrino oscillations and precise measurements of two mass squared differences and the three mixing angles, the unitarity of the leptonic mixing matrix is not yet established, leaving room for the presence of small non-unitarity effects. Deriving the bounds on these non-unitarity parameters from existing experimental constraints, on cLFV decays such as, $ μ\rightarrow eγ$, $ μ\rightarrow τγ$, $ τ\rightarrow eγ$, we study their effects on the generation of baryon asymmetry through leptogenesis and neutrino oscillation probabilities. We consider a model where see-saw is extended by an additional singlet $ S $ which is very light, but can give rise to non-unitarity effects without affecting the form on see-saw formula. We do a parameter scan of a minimal see-saw model in a type I see-saw framework satisfying the Planck data on baryon to photon ratio of the Universe, which lies in the interval, $5.8\times 10^ {-10} < Y _{B} < 6.6 \times 10^ {-10} (BBN)$. We predict values of lightest neutrino mass, and Dirac and Majorana CP-violating phase $ δ_{CP} $, $ α$ and $ β$, for normal hierarchy and inverted hierarchy for one flavor leptogenesis. It is worth mentioning that all these four quantities are unknown yet, and future experiments will be measuring them.

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arXiv2016

Octant Degeneracy, Quadrant of leptonic CPV phase at Long Baseline Neutrino Experiments and Baryogenesis

In a recent work by us, we have studied, how CP violation discovery potential can be improved at long baseline neutrino experiments (LBNE/DUNE), by combining with its ND (near detector) and reactor experiments. In this work, we discuss how this study can be further analysed to resolve entanglement of the quadrant of leptonic CPV phase and Octant of atmospheric mixing angle $ θ_{23} $, at LBNEs. The study is done for both NH (Normal hierarchy) and IH (Inverted hierarchy), HO (Higher Octant) and LO (Lower Octant). We show how baryogenesis can enhance the effect of resolving this entanglement, and how possible values of the leptonic CP-violating phase $ δ_{CP} $ can be predicted in this context. With respect to the latest global fit data of neutrino mixing angles, we predict the values of $ δ_{CP} $ for different cases. In this context we present favoured values of $ δ_{CP} $ ($ δ_{CP} $ range at $ \geq $ 2$ σ$ ) constrained by the latest updated BAU range and also confront our predictions of $ δ_{CP} $ with an up-to-date global analysis of neutrino oscillation data. We find that some region of the favoured $ δ_{CP} $ parameter space lies within the best fit values around $ δ_{CP} \simeq 1.3π-1.4 π$. A detailed analytic and numerical study of baryogenesis through leptogenesis is performed in this framework in a model independent way.

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arXiv2016

Octant Degeneracy, Quadrant of CPV phase at Long Baseline $ν$ Experiments and Baryogenesis

In a recent work by two of us, we have studied, how CP violation discovery potential can be improved at long baseline neutrino experiments (LBNE/DUNE), by combining with its ND (near detector) and reactor experiments. In this work, we discuss how this study can be further analyzed to resolve entanglement of the quadrant of leptonic CPV phase and Octant of atmospheric mixing angle $θ_{23}$, at LBNEs. The study is done for both NH (Normal hierarchy) and IH (Inverted hierarchy), HO (Higher Octant) and LO (Lower Octant). We show how leptogenesis can enhance the effect of resolving this entanglement, and how possible values of the leptonic CPV phase can be predicted in this context. Carrying out numerical analysis based on the recent updated experimental results for neutrino mixing angles, we predict the values of the leptonic CPV phase for 152 possible cases. We also confront our predictions of the leptonic CPV phase with the updated global fit and find that five values of $δ_{CP}$ are favoured by BAU constraints. One of the five values matches with the recent global fit value of $δ_{CP}$ (leptonic CPV phase) close to 1.41 $π$ in our model independent scenario. A detailed analytic and numerical study of baryogenesis through leptogenesis is performed in this framework in a model independent way.

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