506 papers
This paper investigates how the Weinberg angle, a fundamental parameter in the Standard Model that may vary with environmental conditions, influences the Fermi coupling constant and consequently determines the initial neutron abundance in Big-Bang nucleosynthesis and the neutron lifetime.
This paper reviews the confusion surrounding radiative decays of hadronic molecules in existing literature, clarifies the distinctions between different decay types, and emphasizes the critical importance of accounting for the system's scale hierarchy to properly interpret these decays.
This paper presents updated inclusive cross sections for electroweak Higgs boson pair production at LHC-relevant energies, calculated at NLO QCD+NLO EW for vector-boson fusion and NNLO QCD for associate production, covering both Standard Model predictions and scenarios with anomalous trilinear Higgs self-couplings.
This paper demonstrates that combining atmospheric neutrino data with the ESSnuSB super-beam program significantly enhances the precision of measuring the leptonic CP phase and resolves neutrino mass ordering degeneracies.
This paper demonstrates that the Serreau–Tissier replica sector in Yang–Mills theories can dynamically generate a Gribov–Zwanziger-type horizon functional through the expansion of the Faddeev–Popov determinant, thereby providing a microscopic mechanism for the emergence of the Gribov scale that yields either a Curci–Ferrari mass or a refined Gribov–Zwanziger decoupling propagator depending on the replica symmetry phase.
This paper presents the first leading-order Standard Model calculation of triply polarized production at the LHC, revealing that the triply-transverse polarization fraction dominates at approximately 51% while the triply-longitudinal fraction remains negligible at 1.4%, thereby highlighting the significant experimental challenge of measuring the latter.
This paper presents predictions for the scattering observables and femtoscopic correlation functions of the and systems within two theoretical frameworks constrained by heavy-flavor resonances, revealing that while strong-interaction models exhibit significant differences, the inclusion of repulsive Coulomb effects largely suppresses the sensitivity of correlation functions to these underlying strong dynamics.
This paper proposes a new methodology for directly detecting heavy cosmic dark matter by utilizing intense high-energy photon or muon beams at particle facilities, demonstrating that such experiments could observe significant scattering rates, particularly at a proposed muon collider Higgs factory.
This study demonstrates that the charge-weak form factor difference in Ca and Zr is highly sensitive to the isovector spin-orbit interaction due to specific shell structures, whereas Pb and Ni remain insensitive, thereby guiding a strategic approach to use parity-violating electron scattering on these distinct nuclei to separately constrain the isovector spin-orbit strength and the symmetry energy slope.
The Extended Twisted Mass Collaboration presents an updated determination of the leading-order hadronic vacuum polarisation contribution to the muon anomalous magnetic moment in isospin-symmetric QCD, utilizing five gauge ensembles with near-physical pion masses and employing two distinct valence-quark regularisations to calculate both isovector and isoscalar components.
This paper employs the Parametrized Post-Einsteinian formalism and Fisher forecasts to demonstrate that the Laser Interferometer Space Antenna (LISA) can precisely constrain deviations from General Relativity in tensor, vector, and scalar gravitational wave polarizations emitted by massive black hole binaries, achieving high-precision tests of modified gravity theories in the strong-field regime.
This paper presents a numerical computation of two-loop QCD corrections to production at the LHC, incorporating both light- and heavy-quark box-loop contributions via a Monte Carlo integration method that simultaneously handles loop and phase space integrations while validating results against known benchmarks.
This paper presents a numerical evaluation of the two-loop QCD squared matrix element for and processes involving heavy quark axial couplings, demonstrating that infrared, ultraviolet, and threshold singularities can be subtracted directly in four-dimensional loop momentum space to avoid the complexities of handling in dimensional regularization.
This paper derives exact, convergent representations for multiloop sunset Feynman integrals in two dimensions with arbitrary masses and all loop orders, utilizing symmetric polynomials and dimension-raising relations to facilitate high-precision numerical evaluation and the systematic reconstruction of four-dimensional results.
This study proposes using Event Horizon Telescope polarimetric observations of M87's relativistic jet to detect axion-like particles by identifying degree-level electric vector position angle rotations caused by axion-photon coupling, which can be distinguished from plasma Faraday rotation through specific morphological diagnostics.
This article reviews non-perturbative unitarization methods, such as the Inverse Amplitude Method and dispersive frameworks like Roy equations, which are essential for extending Effective Field Theories beyond their perturbative limits by preserving fundamental S-matrix principles and dynamically generating resonances in hadronic and electroweak sectors.
This paper demonstrates that ultraviolet physics, including the sign of the beta function and the dynamical scale in QED and QCD-like theories, can be reconstructed from low-energy expansion coefficients below mass thresholds by leveraging analyticity, inverse Laplace transforms, and controlled coarse-graining.
While decaying dark matter can mimic the background effects of massive neutrinos and allow for eV-scale masses when only distance-based data are used, the inclusion of CMB perturbation observables, particularly lensing, decisively breaks this degeneracy and restores tight neutrino mass constraints.
This paper reframes Quantum Neural Network design from state reachability to learnability by introducing geometric design principles and the almost Complete Local Selectivity (aCLS) criterion, demonstrating that architectures requiring joint dependence on data and trainable weights enable adaptive feature learning and outperform traditional schemes with greater efficiency.
This paper establishes unitarity and analyticity bounds on Higgs effective field theory (HEFT) Wilson coefficients, demonstrating how projecting these constraints into the standard model effective field theory (SMEFT) framework reveals a distinct subspace that can distinguish between a misapplied EFT and a pathological ultraviolet completion, particularly through specific dimension-eight custodial symmetric operators currently being probed at colliders.