Rabindra N. Mohapatra
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View article: RHOA-dependent regulation of mitochondrial remodeling and cell motility in hypoxia-exposed gastric epithelial cells
RHOA-dependent regulation of mitochondrial remodeling and cell motility in hypoxia-exposed gastric epithelial cells Open
Mitochondrial appearance distinctively reflects cellular stress. Hypoxia, one of the most fundamental stressors, drives tumor progression, impacting mitochondrial structure and function. RAS homolog family member A (RHOA), a key regulator …
View article: XMAGNET: Velocity structure functions of active galactic nucleus-driven turbulence in the multiphase intracluster medium
XMAGNET: Velocity structure functions of active galactic nucleus-driven turbulence in the multiphase intracluster medium Open
Context. Significant theoretical and observational efforts are underway to investigate the properties of the turbulence in the hot plasma that pervades galaxy clusters. Spectroscopy has been used to study the projected line-of-sight veloci…
View article: Chemical enrichment of the intracluster medium within the A3266 cluster
Chemical enrichment of the intracluster medium within the A3266 cluster Open
We present a detailed study of the elemental abundances distribution of the intracluster medium (ICM) within the A3266 cluster using XMM-Newton observations. This analysis uses EPIC-pn data, including a new energy scale calibration, which …
View article: Hybrid SO(10) Axion Model without Quality Problem
Hybrid SO(10) Axion Model without Quality Problem Open
Invisible axion models that solve the strong CP problem via the Peccei-Quinn (PQ) mechanism typically have a quality problem that arises from quantum gravity effects which violate all global symmetries. These models therefore require extre…
View article: Effects of Neutron-Antineutron Transitions in Neutron Stars
Effects of Neutron-Antineutron Transitions in Neutron Stars Open
We analyze effects of neutron-antineutron transitions in neutron stars, specifically on (i) cooling, (ii) rotation rate, and (iii) for binary pulsars, the increase in the orbital period. We show that these effects are negligibly small.
View article: Radiative origin of fermion mass hierarchy in left-right symmetric theory
Radiative origin of fermion mass hierarchy in left-right symmetric theory Open
A bstract Despite the remarkable success of the Standard Model, the hierarchy and patterns of fermion masses and mixings remain a profound mystery. To address this, we propose a model employing the rank mechanism, where the originally mass…
View article: Accidental Peccei-Quinn Symmetry From Gauged U(1) and a High Quality Axion
Accidental Peccei-Quinn Symmetry From Gauged U(1) and a High Quality Axion Open
We construct explicit models that solve the axion quality problem originating from quantum gravitational effects. The general strategy we employ is to supplement the Standard Model and its grand unified extensions by an anomaly-free axial …
View article: Measuring the intracluster medium velocity structure within the A3266 galaxy cluster
Measuring the intracluster medium velocity structure within the A3266 galaxy cluster Open
We present a detailed analysis of the velocity structure of the hot intracluster medium (ICM) within the A3266 galaxy cluster, including new observations taken between June and November 2023. Firstly, morphological structures within the ga…
View article: Hybrid SO(10) Axion Model Without Quality Problem
Hybrid SO(10) Axion Model Without Quality Problem Open
Invisible axion models that solve the strong CP problem via the Peccei-Quinn (PQ) mechanism typically have a quality problem that arises from quantum gravity effects which violate all global symmetries. These models therefore require extre…
View article: Measuring the ICM velocity structure within the A3266 galaxy cluster
Measuring the ICM velocity structure within the A3266 galaxy cluster Open
We present a detailed analysis of the velocity structure of the hot intracluster medium (ICM) within the A3266 galaxy cluster, including new observations taken between June and November 2023. Firstly, morphological structures within the ga…
View article: Predictive Dirac neutrino spectrum with strong CP solution in SU(5)L × SU(5)R unification
Predictive Dirac neutrino spectrum with strong CP solution in SU(5)L × SU(5)R unification Open
A bstract We develop a grand unified theory of matter and forces based on the gauge symmetry SU(5) L × SU(5) R with parity interchanging the two factor groups. Our main motivation for such a construction is to realize a minimal GUT embeddi…
View article: Long-lived doubly charged scalars in the left-right symmetric model: Catalyzed nuclear fusion and collider implications
Long-lived doubly charged scalars in the left-right symmetric model: Catalyzed nuclear fusion and collider implications Open
View article: Dark Matter and Mirror World
Dark Matter and Mirror World Open
Overwhelming astronomical evidence for dark matter and absence of any laboratory evidence for it despite many dedicated searches have fueled speculation that dark matter may reside in a parallel universe interacting with the familiar unive…
View article: Explanation of the 95 GeV γγ and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:mi>b</mml:mi><mml:mover accent="true"><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">¯</mml:mo></mml:mrow></mml:mover></mml:math> excesses in the minimal left-right symmetric model
Explanation of the 95 GeV γγ and excesses in the minimal left-right symmetric model Open
We propose a simple interpretation of the γγ excesses reported by both CMS and ATLAS groups at 95 GeV together with the LEP excess in the Zbb¯ channel around the same mass in terms of a neutral scalar field in the minimal left-right symmet…
View article: Parity solution to the strong CP problem and a unified framework for inflation, baryogenesis, and dark matter
Parity solution to the strong CP problem and a unified framework for inflation, baryogenesis, and dark matter Open
A bstract It has been known for some time that asymptotic parity invariance of weak interactions can provide a solution to the strong CP problem without the need for the axion. Left-right symmetric theories which employ a minimal Higgs sec…
View article: Explanation of the 95 GeV $γγ$ and $b\bar{b}$ excesses in the Minimal Left-Right Symmetric Model
Explanation of the 95 GeV $γγ$ and $b\bar{b}$ excesses in the Minimal Left-Right Symmetric Model Open
We propose a simple interpretation of the $γγ$ excesses reported by both CMS and ATLAS groups at 95 GeV together with the LEP excess in the $Zb\bar{b}$ channel around the same mass in terms of a neutral scalar field in the minimal left-rig…
View article: Predictive Dirac Neutrino Spectrum with Strong CP Solution in $\pmb{SU(5)_L \times SU(5)_R}$ Unification
Predictive Dirac Neutrino Spectrum with Strong CP Solution in $\pmb{SU(5)_L \times SU(5)_R}$ Unification Open
We develop a grand unified theory of matter and forces based on the gauge symmetry $SU(5)_L\times SU(5)_R$ with parity interchanging the two factor groups. Our main motivation for such a construction is to realize a minimal GUT embedding o…
View article: Searches for baryon number violation in neutrino experiments: A White Paper
Searches for baryon number violation in neutrino experiments: A White Paper Open
Baryon number conservation is not guaranteed by any fundamental symmetry within the standard model, and therefore has been a subject of experimental and theoretical scrutiny for decades. So far, no evidence for baryon number violation has …
View article: Searches for baryon number violation in neutrino experiments: a white paper
Searches for baryon number violation in neutrino experiments: a white paper Open
Baryon number conservation is not guaranteed by any fundamental symmetry within the standard model, and therefore has been a subject of experimental and theoretical scrutiny for decades. So far, no evidence for baryon number violation has …
View article: Parity Solution to the Strong CP Problem and a Unified Framework for Inflation, Baryogenesis, and Dark Matter
Parity Solution to the Strong CP Problem and a Unified Framework for Inflation, Baryogenesis, and Dark Matter Open
It has been known for some time that asymptotic parity invariance of weak interactions can provide a solution to the strong CP problem without the need for the axion. Left-right symmetric theories which employ a minimal Higgs sector consis…
View article: Measuring the hot ICM velocity structure function using XMM-Newton observations
Measuring the hot ICM velocity structure function using XMM-Newton observations Open
It has been shown that the gas velocities within the intracluster medium (ICM) can be measured by applying novel XMM-Newton EPIC-pn energy scale calibration, which uses instrumental Cu Ka as reference for the line emission. Using this tech…
View article: Gauged L − L − L symmetry, fourth generation, neutrino mass and dark matter
Gauged L − L − L symmetry, fourth generation, neutrino mass and dark matter Open
We present two models where the familiar leptonic symmetry Le−Lμ−Lτ is a gauge symmetry. We show how anomaly cancellation constrains the allowed theories, with one of them requiring a fourth sequential chiral standard model fermion generat…
View article: Conformal <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi><mml:mo>−</mml:mo><mml:mi>L</mml:mi></mml:math> and pseudo-Goldstone dark matter
Conformal and pseudo-Goldstone dark matter Open
We show that a conformal extension of the standard model with local B – L symmetry and two complex scalars breaking B – L can provide a unified description of neutrino mass, origin of matter, and dark matter. There are two hierarchical B –…
View article: Conformal B-L and Pseudo-Goldstone Dark Matter
Conformal B-L and Pseudo-Goldstone Dark Matter Open
We show that a conformal extension of the standard model with local B-L symmetry and two complex scalars breaking B-L can provide a unified description of neutrino mass, origin of matter and dark matter. There are two hierarchical B-L brea…
View article: Gauged $L_e-L_μ-L_τ$ symmetry, fourth generation, neutrino mass and dark matter
Gauged $L_e-L_μ-L_τ$ symmetry, fourth generation, neutrino mass and dark matter Open
We present two models where the familiar leptonic symmetry $L_e-L_μ-L_τ$ is a gauge symmetry. We show how anomaly cancellation constrains the allowed theories, with one of them requiring a fourth sequential chiral standard model fermion ge…
View article: Affleck-Dine leptogenesis with one loop neutrino masses and a solution to the strong <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math> problem
Affleck-Dine leptogenesis with one loop neutrino masses and a solution to the strong problem Open
We present a unified model that solves four major problems of the standard model, i.e., neutrino masses, origin of matter, the strong CP problem and dark matter using the framework of the Affleck-Dine (AD) mechanism. The AD field is respon…
View article: Light, long-lived B - L gauge and Higgs bosons at the DUNE near detector
Light, long-lived B - L gauge and Higgs bosons at the DUNE near detector Open
The low-energy U(1)B-L gauge symmetry is well-motivated as part of beyond Standard Model physics related to neutrino mass generation. We show that a light B - L gauge boson Z' and the associated U(1)B-L-breaking scalar φ can bot…
View article: Constraints on neutron–mirror-neutron oscillation from neutron star cooling
Constraints on neutron–mirror-neutron oscillation from neutron star cooling Open
We address a method of limiting neutron–mirror neutron mixing ( $$\epsilon _{nn'}$$ ) by analyzing its effect on neutron star (NS) heating. This method employs observational bounds on the surface temperature of NSs to constrain $$\…
View article: CP violating effects in heavy neutrino oscillations: implications for colliders and leptogenesis
CP violating effects in heavy neutrino oscillations: implications for colliders and leptogenesis Open
Two of the important implications of the seesaw mechanism are: (i) a simple way to understand the small neutrino masses, and (ii) the origin of matter-anti-matter asymmetry in the universe via the leptogenesis mechanism. For TeV-scale sees…
View article: Neutron–Mirror-Neutron Oscillation and Neutron Star Cooling
Neutron–Mirror-Neutron Oscillation and Neutron Star Cooling Open
It was pointed out in a recent paper that the observed cooling rate of old, cold neutron stars (NS) can provide an upper limit on the transition rate of neutron to mirror neutron (n-n^{'}). This limit is so stringent that it would preclude…