Results 51 to 60 of about 49,673 (241)

Weak magnetism effects in the direct Urca processes in cooling neutron stars [PDF]

open access: yes, 2002
In the mean field approximation, we study the effects of weak magnetism and pseudoscalar interaction in the neutrino energy losses caused by the direct Urca processes on relativistic nucleons in the degenerate baryon matter.
Leinson, L. B.
core   +3 more sources

Pseudoscalars in the charmonium model [PDF]

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.
F.D. Gault, A. Bradley
openaire   +1 more source

Radiative Decay Widths of Ground and Excited States of Vector Charmonium and Bottomonium

open access: yesAdvances in High Energy Physics, 2017
We study the radiative decay widths of vector quarkonia for the process of J/ψ(nS)→ηc(nS)γ and Υ(nS)→ηb(nS)γ (for principal quantum numbers n=1,2,3) in the framework of Bethe-Salpeter equation under the covariant instantaneous ansatz using a 4×4 form of ...
Hluf Negash, Shashank Bhatnagar
doaj   +1 more source

A light NMSSM pseudoscalar Higgs boson at the LHC redux [PDF]

open access: yes, 2015
The Next-to-Minimal Supersymmetric Standard Model (NMSSM) contains a singlet-like pseudoscalar Higgs boson in addition to the doublet-like pseudoscalar of the Minimal Supersymmetric Standard Model.
Bomark, Nils-Erik   +3 more
core   +2 more sources

Pseudoscalar meson radial excitations [PDF]

open access: yesPhysical Review C, 2004
5 pages, 3 ...
Craig D. Roberts   +3 more
openaire   +3 more sources

Global constraints on neutral-current generalized neutrino interactions

open access: yesJournal of High Energy Physics, 2021
We study generalized neutrino interactions (GNI) for several neutrino processes, including neutrinos from electron-positron collisions, neutrino-electron scattering, and neutrino deep inelastic scattering.
F. J. Escrihuela   +3 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, EarlyView.
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

Properties of flavour-singlet pseudoscalar mesons from lattice QCD

open access: yesEPJ Web of Conferences, 2017
We report on the status of the determination of properties of flavour-singlet pseudoscalar mesons using Wilson twisted mass lattice QCD at maximal twist.
Urbach Carsten
doaj   +1 more source

Type-III two Higgs doublet model plus a pseudoscalar confronted with h→μτ, muon g−2 and dark matter

open access: yesNuclear Physics B, 2016
In this work, we introduce an extra singlet pseudoscalar into the Type-III two Higgs doublet model (2HDM) which is supposed to solve a series of problems in the modern particle-cosmology.
Xuewen Liu   +3 more
doaj   +1 more source

Can the 126 GeV boson be a pseudoscalar?

open access: yes, 2012
We test the possibility that the newly-discovered 126 GeV boson is a pseudoscalar by examining the correlations among the loop-induced pseudoscalar decay branching fractions to $\gamma\gamma$, $ZZ^*$, $Z\gamma$, and $WW^*$ final states in a model ...
Baradhwaj Coleppa   +4 more
core   +1 more source

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