Results 71 to 80 of about 1,110 (184)

Distribution amplitudes of pseudoscalar mesons

open access: yes, 2006
Presented at XXIV International Symposium on Lattice Field Theory, July 23-28 2006, Tucson Arizona ...
Braun, Vladimir M.   +10 more
openaire   +3 more sources

QCD corrections to production of Higgs pseudoscalars [PDF]

open access: yesPhysical Review D, 1994
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 for those models in which the pseudoscalar coupling to bottom quarks is strongly enhanced).
Kauffman, Russel P., Schaffer, Wendy
openaire   +3 more sources

Two-Point Correlators of Fermionic Currents in External Magnetic Field

open access: yesEPJ Web of Conferences, 2017
We study the two-point correlation functions under an influence of the constant homogeneous magnetic field. In addition to the correlators of scalar, pseudoscalar, vector and axial-vector fermionic currents, we calculate the non-diagonal one including ...
Dobrynina Alexandra   +3 more
doaj   +1 more source

Relativistic corrections to the pair Bc-meson production in e+e− annihilation

open access: yesNuclear Physics B, 2016
Relativistic corrections to the pair Bc-meson production in e+e−-annihilation are calculated. We investigate a production of pair pseudoscalar, vector and pseudoscalar+vector Bc-mesons in the leading order perturbative quantum chromodynamics and ...
A.A. Karyasov   +2 more
doaj   +1 more source

Axion‐Like Interactions and CFT in Topological Matter, Anomaly Sum Rules and the Faraday Effect

open access: yesAdvanced Physics Research, Volume 4, Issue 7, July 2025.
This review investigates the connection between chiral anomalies and their manifestation in topological materials, using both perturbative methods based on ordinary quantum field theory and conformal field theory (CFT). It emphasizes the role of CFT in momentum space for parity‐odd correlation functions, and their reconstruction by the inclusion of a ...
Claudio Corianò   +4 more
wiley   +1 more source

Bounds on very weakly interacting ultra light scalar and pseudoscalar dark matter from quantum gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
In this paper we consider very weakly interacting and ultra light scalar and pseudoscalar dark matter candidates. We show that quantum gravity has important implications for such models and that the masses of the singlet scalar and pseudoscalar fields ...
Xavier Calmet, Folkert Kuipers
doaj   +1 more source

Notes on Parameterized Energy Pathways in the Ocean: Insights From Stochastic and Deterministic Kinetic Energy Injection

open access: yesJournal 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

Excited scalar and pseudoscalar mesons in the extended linear sigma model

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
We present an in-depth study of masses and decays of excited scalar and pseudoscalar $${\bar{q}}q$$ q ¯ q states in the Extended Linear Sigma Model (eLSM). The model also contains ground-state scalar, pseudoscalar, vector and axial-vector mesons.
Denis Parganlija, Francesco Giacosa
doaj   +1 more source

Mixed scalar-pseudoscalar Higgs boson production through next-to-next-to-leading order at the LHC

open access: yesJournal 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

Pseudoscalars in the charmonium model

open access: yesZeitschrift f�r Physik C Particles and Fields, 1980
We take the recently found charmonium state at 2.976 GeV to be the ηc and show that it can be included in a charmonium model with relativistic corrections which reproduces the s-wave spectrum, the leptonic widths Γ(V→e+ e−) and the p-wave splittings. The upsilon spectrum is discussed as are the effects of radial and pseudoscalar mixing.
A. Bradley, F. D. Gault
openaire   +1 more source

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