⚛️ Category

hep-ph

5257 papers

Hep-Ph explores the fundamental forces that govern how particles interact and behave at the smallest scales imaginable. This field bridges the gap between theoretical predictions and experimental reality, helping scientists understand the building blocks of our universe without getting lost in complex mathematics. Whether investigating the Higgs boson or searching for new physics beyond current models, these studies push the boundaries of human knowledge about matter and energy.

At Gist.Science, we process every new preprint in this category as soon as it appears on arXiv. We strip away the dense jargon to offer both accessible plain-language explanations and detailed technical summaries, ensuring that groundbreaking research is understandable to everyone from students to seasoned experts. Below are the latest papers in this dynamic field, ready for you to explore with clarity and depth.

⚛️ phenomenology

Operational quantum estimation theory for neutrino oscillations: identifiability, attainability, and spectral precision bounds

This paper establishes an operational quantum estimation framework for three-flavor neutrino oscillations that rigorously separates state, measurement, and reconstruction to analyze identifiability and joint attainability, demonstrating that while pure-state Quantum Fisher Information is rank-limited, broadband resolution and detector effects can restore full spectral precision, a theory validated by a high-fidelity DUNE GLoBES implementation that exposes the limitations of local bounds in supporting global sensitivity claims.

Jianlong Lu2026-08-26
⚛️ phenomenology

When the HL-LHC is blind, LISA is deaf (but not vice versa): 2HDM collider-cosmology synergies

This paper demonstrates that in the CP-conserving type-I 2HDM, the parameter space capable of producing a gravitational wave signal detectable by LISA is almost entirely constrained by future HL-LHC searches for heavy Higgs decays, establishing a strong synergy where collider data can rule out LISA-detectable scenarios, though a collider discovery does not guarantee a gravitational wave signal due to theoretical uncertainties and parameter tuning.

Stefano Moretti, André Pousette, Carlo Tasillo2026-08-26
⚛️ general relativity

Primordial spectra from modified Bekenstein-Hawking entropy law

This paper investigates how logarithmic corrections to the Bekenstein-Hawking entropy, arising from quantum gravity, modify the background of single-field slow-roll inflation and consequently shift the tilt and running of the scalar primordial spectrum as well as the tensor-to-scalar ratio and consistency relation, while preserving the standard Mukhanov-Sasaki evolution equation with a quantum-corrected effective frequency.

Marco de Cesare, Giulia Gubitosi, Varun Kushwaha2026-08-26
🔭 astrophysics

Beyond w0−waw_0-w_a and Phantom Crossing: Testing Models of Coupled Dark Sector

This paper investigates a coupled dark sector model where dark matter mass depends on a self-interacting dark energy field to explain the observed phantom crossing of the equation of state, finding that it fits CMB, BAO, and SNIa data as well as the standard phenomenological w0−waw_0-w_a parameterization while offering a more fundamental theoretical framework.

Kaynan R. de O. Pompeu, João Rebouças, Rogerio Rosenfeld2026-08-26
⚛️ nuclear theory

Neuro-dispersive extractions of light-meson resonances

This paper presents the first dispersive extraction of light-meson resonance poles from ππ\pi\pi scattering data using S-matrix informed neural networks (SINNs) that enforce fundamental physical principles like unitarity and analyticity without relying on specific amplitude parametrizations.

Wyatt A. Smith, Arkaitz Rodas, Marius D. Thomas, César Fernández-Ramírez, Giorgio Foti, Lin Qiu, Adam P. Szczepaniak, Al (…)2026-08-26
⚛️ nuclear theory

S-matrix informed neural networks for amplitude analysis

This paper introduces S-matrix informed neural networks (SINNs) combined with a novel data selection procedure to reconstruct scattering amplitudes from inconsistent experimental data while strictly adhering to physical first principles, demonstrated through a robust application to ππ\pi\pi scattering that yields reusable amplitudes with correlated uncertainties.

Wyatt A. Smith, Arkaitz Rodas, Marius D. Thomas, César Fernández-Ramírez, Giorgio Foti, Lin Qiu, Adam P. Szczepaniak, Al (…)2026-08-26