pseudoscalar meson
Simplified Bethe-Salpeter Description of Basic Pseudoscalar-Meson Features
... of pseudoscalar-meson pole terms in both axial-vector and pseudoscalar vertex functions entering into the axial-vector Ward–Takahashi identity of QCD expressing the invariance of QCD under chiral ...
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A tmQCD mixed-action approach to flavour physics
... As mentioned in section 2.3, the matching can been performed by imposing that renormalised quark masses of sea and valence quark masses are equal. As a result, relative cuto ff e ff ects of O(a 2 ) are expected between ...
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Spectroscopy of Charmed and Bottom Hadrons using Lattice QCD
... shows pseudoscalar meson masses as a function of quark masses on the coarser lattice (a ∼ ...the pseudoscalar meson mass approaches the chiral limit linearly with quark mass (modulo small ...
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The pseudoscalar decay constant
... the pseudoscalar meson that is experimentally detected. The K meson con- ceptually is a strange quark and a light quark in a sea of light ...The pseudoscalar meson calculated on the ...
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Properties of flavour-singlet pseudoscalar mesons from lattice QCD
... light pseudoscalar mesons led to the formulation of the “U(1) problem” ...ninth pseudoscalar meson to have a mass similar or a bit lighter than the kaons and the η me- ...
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Flavour symmetry restoration and kaon weak matrix elements in quenched twisted mass QCD
... reference pseudoscalar meson mass, constitute our constant physics ...the pseudoscalar masses and decay constants in both π/2 and π/4 ...the pseudoscalar masses and decay constants for mesons ...
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Gamma-gamma physics and meson transition form factors
... neutral pseudoscalar mesons (P = η, η 0 ) and two pion contributions ...the pseudoscalar meson pole contribution to (g −2) are transition form factors (TFFs) of the corresponding pseu- doscalar ...
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Meson electromagnetic form factors
... According to SU(3) classification there are scalar meson, pseudoscalar meson, vector meson and tensor meson [1] multiplets to be bound states of light quarks u, d, s. For a description ...
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A pseudoscalar glueball and charmed mesons in the extended linear sigma model
... the pseudoscalar glueball and charmed mesons in an effective model called the extended linear sigma model (eLSM) with vector and axial vector ...the pseudoscalar glueball with (pseudo)scalar ...lightest ...
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Pseudoscalar transition form factors: (g − 2) of the muon, pseudoscalar decays into lepton pairs, and the η – η′ mixing
... describe pseudoscalar meson transition form factors in the space- and (low-energy) time-like ...(the pseudoscalar exchange contribution), the pseudoscalar decays into lepton pairs, and the ...
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Pseudoscalar singlet physics with staggered fermions
... In principle there are two choices of flavor-singlet pseudoscalar meson operator available. These are the ( γ 4 γ 5 ⊗ 1) and the ( γ 5 ⊗ 1). The former is a three-link operator, with the quark and antiquark ...
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The eta and eta' mesons in QCD
... the pseudoscalar meson as possible to have the largest basis in which to extract the ground state - local and non-local (fuzzed) in space with both γ 5 and γ 5 γ 4 spin ...
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Polarizability of pseudoscalar mesons from the lattice calculations
... Abstract. We explore the energy dependence of neutral and charge pions of the back- ground constant abelian magnetic field in SU(3) lattice gauge theory without dynamical quarks. The energy of neutral pseudoscalar ...
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Is the up-quark massless?
... studying pseudoscalar meson masses and matrix elements for unphysical quark masses and fitting their quark mass dependence to the expressions found in ...
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Exclusive central diffractive production of scalar, pseudoscalar and vector mesons
... For pseudoscalar meson pro- duction we can expect large contributions from ωω exchanges due to the large coupling of the ω meson to the ...the meson exchanges are ...
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The role of mesons in muon g − 2
... A general introduction I have presented recently in [4] (see also my recently actualized book [5]) and the present short note should be considered as a supplement with a focus an the role of meson physics in this ...
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Recent heavy-flavour results from ATLAS
... double ratio for ψ (2S) to J /ψ , as a function of centrality expressed as N Part , for prompt meson production (left) and. non-prompt meson production (right)[r] ...
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In-medium Properties of the η′-Meson from Photonuclear Reactions
... ratio measurement. The mesons reproduced via such processes should have relatively low kinetic energy. Applying a cut on the kinetic energy of the meson it is possible to study the effect of the secondary ...
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In-medium properties of mesons
... the meson might drop in a nuclear medium - as theoretically predicted - which lowers the production threshold and increases the phase space for meson pro- duction below the free threshold ...
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Aspects of Meson Condensation
... I have shown how meson physics in presence of chemical potentials can be described using Chiral Perturbation Theory. This lead to three di ff erent phases, a normal phase, a pion condensation phase and a kaon ...
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