Space-like and time-like pion electromagnetic form factor and Fock state components within the Light-Front dynamics

Abstract

The simultaneous investigation of the pion electromagnetic form factor in the space- and time-like regions within a light-front model allows one to address the issue of non-valence components of the pion and photon wave functions. Our relativistic approach is based on a microscopic vector meson dominance (VMD) model for the dressed vertex where a photon decays in a quark-antiquark pair, and on a simple parametrization for the emission or absorption of a pion by a quark. The results show an excellent agreement in the space like region up to -10 $(GeV/c{)}^2$, while in time-like region the model produces reasonable results up to 10 $(GeV/c{)}^2$.

74 pages, 11 figures, use revtex4

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Cited by in corpus (50)

• Light-Front Dynamics and AdS/QCD Correspondence: The Pion Form Factor in the Space- and Time-Like Regions
• Collective perspective on advances in Dyson-Schwinger Equation QCD
• Charged pion form factor between Q^2=0.60 and 2.45 GeV^2. II. Determination of, and results for, the pion form factor
• The pion: an enigma within the Standard Model
• Pion Generalized Parton Distributions with covariant and Light-front constituent quark models
• Nucleon Electromagnetic Form Factors in the Timelike Region
• Unquenched quark model for baryons: magnetic moments, spins and orbital angular momenta
• Semileptonic and radiative decays of the B_c meson in light-front quark model
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• Mind the gap
• A Nakanishi-based model illustrating the covariant extension of the pion GPD overlap representation and its ambiguities
• The transverse structure of the pion in momentum space inspired by the AdS/QCD correspondence
• The valence quark, sea, and gluon content of the pion from the parton distribution functions and the electromagnetic form factor
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• Elucidating the effect of intermediate resonances in the quark interaction kernel on the time-like electromagnetic pion form factor
• Pion electromagnetic form factor in the Covariant Spectator Theory
• Space-like and time-like pion-rho transition form factors in the light-cone formalism
• A combined study of the pion's static properties and form factors
• Two-particle twist-3 distribution amplitudes of the pion and kaon in the light-front quark model
• A Comprehensive Analysis on the Pion-Photon Transition Form Factor Beyond the Leading Fock State
• Light-front quark model analysis of the exclusive rare $B_c\to D_{(s)}({\ell }^{+}{\ell }^{-},{\nu }_{\ell }{\bar{\nu }}_{\ell })$ decays
• Electromagnetic meson form factor from a relativistic coupled-channel approach
• High $Q^2$ behavior of the electromagnetic form factors in the relativistic hypercentral CQM
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• Timelike nucleon electromagnetic form factors: All about interference of isospin amplitudes
• Pseudoscalar mesons with symmetric bound state vertex functions on the light front
• Exclusive rare $B_s\to (K,\eta ,{\eta }^{\prime }){\ell }^{+}{\ell }^{-}$ decays in the light-front quark model
• Light-front dynamic analysis of transition form factors in the process of $P\to V\ell {\nu }_{\ell }$
• Light-Front Spin-1 Model: Parameters Dependence
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• Exploring the Pion phenomenology within a fully covariant constituent quark model
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