Results 61 to 70 of about 49,673 (241)
Journal of Advances in Modeling Earth Systems, Volume 17, Issue 5, May 2025.Abstract Accurately representing ocean dynamics across interacting scales remains a challenge in numerical modeling. This study examines mesoscale eddy parameterization in eddy‐permitting ocean models by incorporating novel stochastic perturbations and comparing them with a well‐tested dynamic kinetic energy backscatter scheme.
Ekaterina Bagaeva +4 more
wiley +1 more source
QCD Corrections to Production of Higgs Pseudoscalars
, 1993 Models of electroweak symmetry breaking with more than a single doublet of Higgs scalars contain a neutral pseudoscalar boson. The production of such a pseudoscalar in hadron collisions proceeds primarily via gluon fusion through a top-quark loop (except
A Djouadi +17 more
core +1 more source
Collider constraints on light pseudoscalars [PDF]
Journal of High Energy Physics, 2018 Abstract We investigate the bounds on light pseudoscalars that arise from a variety of collider searches. Special attention is thereby devoted to the mass regions [3, 5] GeV and [9, 11] GeV, in which a meaningful theoretical description has to include estimates of non-perturbative effects such as the mixing of the pseudoscalar with
Michael Spira +5 more
openaire +4 more sources
Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions
Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge +3 more
wiley +1 more source
Physics Letters B, 2022 We carry out the first lattice QCD derivation of the mixing energy and the mixing angle of the pseudoscalar charmonium and glueball on two gauge ensembles with Nf=2 degenerate dynamical charm quarks. The mixing energy is determined to be 49(6) MeV on the
Renqiang Zhang +5 more
doaj
Nonlinear Vortex Dichroism in Chiral Molecules
Advanced Optical Materials, Volume 13, Issue 3, January 24, 2025.Chiral molecules are shown to absorb two photons from a linearly polarized Laguerre–Gaussian vortex beams at different rates depending on the sign and magnitude of orbital angular momentum: nonlinear vortex dichroism. This new form of nonlinear optical activity is shown to have many remarkable properties, including novel access to structural ...
Luke Cheeseman, Kayn A. Forbes
wiley +1 more source
Combined search for anomalous pseudoscalar HVV couplings in VH(H→bb‾) production and H→VV decay
Physics Letters B, 2016 A search for anomalous pseudoscalar couplings of the Higgs boson H to electroweak vector bosons V (=W or Z) in a sample of proton–proton collision events corresponding to an integrated luminosity of 18.9 fb−1 at a center-of-mass energy of 8 TeV is ...
V. Khachatryan +2 more
doaj +1 more source
Tensor Condensate Accompanied by Chiral Transition in a Strong Magnetic Field
Advances in High Energy Physics, Volume 2025, Issue 1, 2025.We investigate tensor condensates and chiral condensates in the (2 + 1)‐flavor Nambu–Jona–Lasinio model at finite temperature and density in the presence of a strong magnetic field. The emergence of the tensor condensate is attributed to the four‐fermion interaction.
Yuan-Hao Niu +2 more
wiley +1 more source
Pseudoscalar Field as a Possible Candidate for Phantom Field
Advances in High Energy Physics, Volume 2025, Issue 1, 2025.We demonstrate the existence of a single pseudoscalar (PS) field in the mathematically backed and parity‐preserving modifications of the standard Stückelberg formalism (SSF) in the context of the Lagrangian formulation of the (i) two (1 + 1)‐dimensional (2D) massive Abelian 1‐form gauge theory, (ii) three (2 + 1)‐dimensional (3D) massive Abelian 2‐form
E. Harikumar, R. P. Malik, Burak Bilki
wiley +1 more source
Mixed scalar-pseudoscalar Higgs boson production through next-to-next-to-leading order at the LHC
Journal of High Energy Physics, 2020 We study the production of a mixed scalar-pseudoscalar Higgs boson in gluon fusion at the LHC, through next-to-next-to-leading order (NNLO) in QCD. We obtain fully differential results, including the decay of the Higgs boson to two charged lepton pairs ...
Matthieu Jaquier, Raoul Röntsch
doaj +1 more source