Results 61 to 70 of about 51,008 (236)
Radiative Decay Widths of Ground and Excited States of Vector Charmonium and Bottomonium
Advances 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
An ultralight pseudoscalar boson [PDF]
Physical Review D, 2016 14 pages, 3 figures. v2 numerical error on N corrected, conclusions unchanged. Typos and notation corrected.
Kim, Jihn E., Marsh, David J.E.
openaire +3 more sources
Type-III two Higgs doublet model plus a pseudoscalar confronted with h→μτ, muon g−2 and dark matter
Nuclear 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
Properties of flavour-singlet pseudoscalar mesons from lattice QCD
EPJ 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
Helical Magnetic Fields from Inflation [PDF]
, 2009 We analyze the generation of seed magnetic fields during de Sitter inflation considering a non-invariant conformal term in the electromagnetic Lagrangian of the form $-\frac14 I(\phi) F_{\mu \nu} \widetilde{F}^{\mu \nu}$, where $I(\phi)$ is a ...
Anber M. M. +8 more
core +1 more source
Axion‐Like Interactions and CFT in Topological Matter, Anomaly Sum Rules and the Faraday Effect
Advanced 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
European Physical Journal C: Particles and FieldsA search for a pseudoscalar a produced in association with a top-quark pair, or in association with a single top quark plus a W boson, with the pseudoscalar decaying into b-quarks ( $$a\rightarrow b\bar{b}$$ a → b b ¯ ), is performed using the full Run 2
ATLAS Collaboration
doaj +1 more source
The $$\pi f_0(500)$$ π f 0 ( 500 ) decay of the $$a_1(1260)$$ a 1 ( 1260 )
European Physical Journal C: Particles and Fields, 2021 We evaluate the $$a_1(1260) \rightarrow \pi \sigma (f_0(500))$$ a 1 ( 1260 ) → π σ ( f 0 ( 500 ) ) decay width from the perspective that the $$a_1(1260)$$ a 1 ( 1260 ) resonance is dynamically generated from the pseudoscalar–vector interaction and the $$\
R. Molina +3 more
doaj +1 more source
, 2017 The scalar-pseudoscalar interaction constant of PbF in its ground state electronic configuration is calculated using the Z-vector method in the relativistic coupled-cluster framework.
Nayak, Malaya K. +4 more
core +1 more source
, 2009 We present a simple supersymmetric model where the dominant decay mode of the lightest Higgs boson is h->2eta->4c where eta is a light pseudoscalar and c is the charm quark. For such decays the Higgs mass can be smaller than 100 GeV without conflict with
Bellazzini, Brando +3 more
core +2 more sources