Results 121 to 130 of about 48,235 (192)

Pseudoscalar transition form factors: (g − 2) of the muon, pseudoscalar decays into lepton pairs, and the η – η′ mixing

EPJ Web of Conferences, 2016
We present our model-independent and data-driven method to describe pseudoscalar meson transition form factors in the space- and (low-energy) time-like regions.
Masjuan Pere, Sanchez-Puertas Pablo
doaj   +1 more source

Exact solution of the 1D Dirac equation for a pseudoscalar interaction potential with the inverse-square-root variation law. [PDF]

Sci Rep, 2023
Ishkhanyan AM, Krainov VP.
europepmc   +1 more source

Flavour constraints on pseudoscalar mediators

, 2015
Dark MALT 2015, Munich, Munich Institute for Astro- and Particle Physics, Germany, 9 Feb 2015 - 9 Feb ...
openaire   +3 more sources

On the precision of a data-driven estimate of the pseudoscalar-pole contribution to hadronic light-by-light scattering in the muon g−2

EPJ Web of Conferences, 2016
The evaluation of the numerically dominant pseudoscalar-pole contribution to hadronic light-bylight scattering in the muon g − 2 involves the pseudoscalar-photon transition form factor FPγ*γ*(−Q12−Q22) with P = π0, η, η′ and, in general, two off-shell ...
Nyffeler Andreas
doaj   +1 more source

Thin layer axion dynamo

European Physical Journal C: Particles and Fields
We study interacting classical magnetic and pseudoscalar fields in frames of the axion electrodynamics. A large scale pseudoscalar field can be the coherent superposition of axions or axion like particles. We consider the evolution of these fields inside
Maxim Dvornikov
doaj   +1 more source

A Loop-philic Pseudoscalar

, 2015
We construct a weakly-coupled renormalizable model to explain the $750\mbox{GeV}$ diphoton excess. The $750\mbox{GeV}$ resonance (denoted as $X(750)$) is interpreted as a pseudoscalar coming from a complex singlet. The model also naturally provides a dark matter candidate. One most attractive feature of the model is that decays of $X(750)$ are all loop-
Li, Gang, Mao, Ying-nan, Tang, Yi-Lei, Zhang, Chen, Zhou, Yang, Zhu, Shou-hua   +5 more
openaire   +2 more sources

Leptophilic ALPs in laboratory experiments

Journal of High Energy Physics
We study the collider phenomenology of leptophilic axion-like particles (ALPs), i.e. pseudoscalar particles that couple only to charged leptons. Loops of charged leptons induce effective interactions of the ALPs with photons, which depend on the momenta ...
Alexander Eberhart, Marco Fedele, Felix Kahlhoefer, Eike Ravensburg, Robert Ziegler   +4 more
doaj   +1 more source

Nonlinear Pseudoscalar Meson Theory [PDF]

Progress of Theoretical Physics, 1953
openaire   +1 more source

Mapping Spatial Distributions within Pseudoscalar Mesons

Chinese Physics Letters
Abstract Several aspects of the internal structure of pseudoscalar mesons, accessible through generalized parton distributions in their zero-skewness limit, are examined. These include electromagnetic and gravitational form factors related to charge and mass densities; and distributions in the impact parameter space.
Raya, K, Bashir, A, Rodríguez-Quintero, J   +2 more
openaire   +2 more sources

Complete experiments in pseudoscalar meson photoproduction

, 2015
9 pages, 2 figures, 2 tables; This article was originally published as part of the Proceedings of the Mini-Workshop "Exploring Hadron Resonances" held in Bled, Slovenia, in July ...
openaire   +3 more sources