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Article
Open AccessCircular orbits and accretion disk around AdS black holes surrounded by dark fluid with Chaplygin-like equation of state
In the present work we study the geodesic motion and accretion process of a test particle near an Anti-de Sitter (ADS) BH surrounded by a dark fluid with a Chaplygin-like equation. Within the defined paradigm,...
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Article
Open AccessTesting strong gravitational lensing effects of various supermassive compact objects for the static and spherically symmetric hairy black hole by gravitational decoupling
We investigate the strong gravitational lensing effects of various supermassive compact objects for the static and spherically symmetric hairy black hole by gravitational decoupling. To do this purpose, we fir...
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Article
Open AccessStudy of self-bound compact stars in \(f(\mathscr {T})\) gravity and observational constraints on the model parameters
The present study is based on \(f(\mathscr {T})\) f ( ...
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Article
Open AccessMeasurement of branching-fraction ratios and CP asymmetries in B± → DCP±K± decays at Belle and Belle II
We report results from a study of B± → DK± decays followed by D decaying to the CP-even final state K+K− and CP-odd final state ...
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Article
Open AccessA comparative study of wormhole geometries under two different modified gravity formalism
In the current article, we discuss the wormhole geometries in two different gravity theories, namely \(\texttt{F}(\texttt{Q, T})\) ...
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Article
Open AccessStrong gravitational lensing, quasi-periodic oscillations and constraints from EHT observations for quantum-improved charged black hole
We investigate strong gravitational lensing by quantum-improved charged black holes characterized by an additional parameter denoted as $$\ome...
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Article
Structural features of anisotropic spheres with quintessence in pure Lovelock gravity
In this paper, we study quintessence compact stars in the paradigm of pure Lovelock gravity. We derive the field equations using a spherically symmetric space–time. Specifically, we discuss the equivalence of ...
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Article
Open AccessEffect of decoupling parameters on maximum allowable mass of anisotropic stellar structure constructed by mass constraint approach in f(Q)-gravity
In the present article anisotropic solutions with vanishing complexity in the framework of f(Q) gravity are generated. At first, the field equations in f(Q)-gravity are gravitationally decoupled where the isotrop...
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Article
Open AccessSearch for charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays at Belle
We report a search for the charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays using a 25 fb−1 Υ(2S) sample collected by the Belle detector at the KEKB e+e− asymmetric-energy collider. We find no ev...
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Chapter and Conference Paper
Tribology of Spray Formed Aluminium-Based Materials
The excellent properties of aluminium-based materials (aluminium alloys and their composites) such as high specific strength & stiffness, less wear, good elevated temperature properties, high dam** capabilit...
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Article
Open AccessMinimally deformed anisotropic stars in dark matter halos under EGB-action
In this paper, we introduce an anisotropic model using a dark matter (DM) density profile in Einstein–Gauss–Bonnet (EGB) gravity using a gravitational decoupling method introduced by Ovalle (Phys Rev D 95:1040...
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Article
Open AccessMeasurement of CP asymmetries and branching-fraction ratios for B± → DK± and Dπ± with D → \( {K}_{\textrm{S}}^0 \) K±π∓ using Belle and Belle II data
We measure CP asymmetries and branching-fraction ratios for B± → DK± and Dπ± decays with D → K ...
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Article
Open AccessSearch for \( {\textrm{B}}_{\textrm{s}}^0 \) → ℓ∓τ± with the semi-leptonic tagging method at Belle
We present a search for the lepton-flavor-violating decays B s ...
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Article
Open AccessMeasurement of the e+e− → \( {B}_s^0{\overline{B}}_s^0X \) cross section in the energy range from 10.63 to 11.02 GeV using inclusive \( {D}_s^{+} \) and D0 production
We report the first measurement of the inclusive e+e− → b b ¯ ...
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Article
Open AccessSearch for the double-charmonium state with ηcJ/ψ at Belle
We measure the cross section of e+e− → ηcJ/ψ at the Υ(nS)(n = 1–5) on-resonance and 10.52 GeV off-resonance energy points using the full data sample collected by the Belle detector with an integrated luminosity o...
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Article
Open AccessOrbital motion and quasi-periodic oscillations with periastron and Lense–Thirring precession of slowly rotating Einstein–Æther black hole
We study the orbital and oscillatory motion of test particles moving around slowly rotating first and second kinds of Einstein–Æther black holes. In relation to the black hole parameters, we find analytical so...
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Article
Open AccessRole of vanishing complexity factor in generating spherically symmetric gravitationally decoupled solution for self-gravitating compact object
In this work, we study the role of the vanishing complexity factor in generating self-gravitating compact objects under gravitational decoupling technique in f(Q)-gravity theory. To tackle the problem, the gravit...
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Article
Open AccessSearch for lepton-flavor-violating τ decays into a lepton and a vector meson using the full Belle data sample
Charged-lepton-flavor-violation is predicted in several new physics scenarios. We update the analysis of τ lepton decays into a light charged lepton (ℓ = e± or μ±) and a vector meson (V0 = ρ0, ϕ, ω, K*0, or ...
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Article
Open AccessAnisotropic compact stars in complexity formalism and isotropic stars made of anisotropic fluid under minimal geometric deformation (MGD) context in \(f(\mathscr {T})\) gravity-theory
In this paper, we present an anisotropic solution for static and spherically symmetric self-gravitating systems by demanding the vanishing of the complexity factor (Herrera in Phys Rev D 97:044010, 2018) along...
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Article
Open AccessComplexity-free solution generated by gravitational decoupling for anisotropic self-gravitating star in symmetric teleparallel f(Q)-gravity theory
In this work, we attempt to find an anisotropic solution for a compact star generated by gravitational decoupling in f(Q)-gravity theory having a null complexity factor. To do this, we initially derive the comple...
