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.
This paper extends the Salehian, Namjoo & Kaiser effective field theory framework for relativistic axions to the synchronous gauge and to cases with non-zero anisotropic stress, while proposing a fluid interpretation that identifies the axion field as a perfect fluid at all times to facilitate its implementation in cosmological Boltzmann solvers.
This paper presents a novel effective field theory approach that successfully reconstructs relativistic axion oscillations with subpercent accuracy and high computational efficiency, overcoming previous challenges in resolving rapid field dynamics for future cosmological axion searches.
This paper introduces a qubit-qutrit quantum tomography technique to certify entanglement in and systems despite incomplete density matrix data, thereby providing a novel probe of nonperturbative QCD hadronization and spin evolution.
This paper proposes a nearly pure 1 TeV higgsino dark matter candidate within the Minimal Supersymmetric Standard Model coupled to Starobinsky supergravity, demonstrating that the model's predicted Higgs boson mass aligns with experimental observations for bino-induced mass splittings while excluding wino-induced scenarios, all in light of the recent LUX-ZEPLIN event.
This paper demonstrates that the canonical SIMP mechanism is excluded by axion-like particle bounds, necessitating a revised model where the dark sector freezes out at a distinct temperature and the predictive power shifts from fixing the self-interaction cross-section to determining the flavon vacuum expectation value, which successfully accommodates observed dark matter abundance and specific self-interaction constraints.
This paper proposes a Standard Model extension featuring vector-like muons and two scalar singlets that simultaneously realizes a viable pNGB dark matter candidate, predicts observable vector-like muon production at future muon colliders, and enables strong first-order electroweak phase transitions detectable via gravitational waves.
This paper proposes that the 220 PeV neutrino event detected by KM3NeT originates from the terminal evaporation of a Primordial Black Hole, demonstrating that embedding the black hole in a cosmological McVittie spacetime reconciles early-universe accretion dynamics with today's standard Schwarzschild thermodynamics to explain the observed high-energy flux while satisfying isotropic background constraints.
This paper presents a proof-of-principle implementation within the Sherpa event generator of next-to-leading-order QCD and electroweak corrections in dimension-six SMEFT for the Higgs decay , matched to a parton shower and validated through numerical results and an application to associated production at the LHC.
This paper investigates the self-consistent determination of bubble wall velocity in a specific electroweak phase transition pattern within the complex singlet extension of the Standard Model, where both the Higgs and singlet fields experience friction, by combining microscopic Boltzmann transport equations with macroscopic hydrodynamic analysis to reveal how the competition between driving forces and plasma friction governs wall dynamics and impacts early Universe phenomenology.
This paper establishes a systematic correspondence between massless and massive contact amplitudes in the SMEFT by utilizing a spin-transversality basis and minimal-helicity-chirality expansion to map unbroken-phase Wilson coefficients to broken-phase amplitude coefficients for processes involving three to eight external particles.