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form factors (elementary particles)

Electromagnetic transition form factors of baryons in a relativistic Faddeev approach

Electromagnetic transition form factors of baryons in a relativistic Faddeev approach

... electromagnetic form factors of ground-state baryons and resonances are ...transition form factors between ground-state octet and decuplet baryons as well as the octet-only Σ 0 to Λ ...

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BESIII results on time-like baryon form factors

BESIII results on time-like baryon form factors

... BESIII is an excellent laboratory for the measurement of baryon time-like form factors. Both ISR and scan methods can be performed, and the kinematical threshold for different baryon pair productions is ...

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Charge symmetry violation in the electromagnetic form factors of the nucleon

Charge symmetry violation in the electromagnetic form factors of the nucleon

... electroweak form factors of the nu- cleon. These ‘strange form factors’ have been the focus of intensive experimental and theoretical effort for the past two decades ...electromagnetic ...

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Review of recent measurements of meson and hyperon form factors

Review of recent measurements of meson and hyperon form factors

... two vector resonances of charmonium to leptons (via a photon) and hadrons (via gluons) are identical, because both are proportional to the wave functions at the origin. This relation was successfully used by us recently ...

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Form factors and related quantities in clothed-particle representation

Form factors and related quantities in clothed-particle representation

... Abstract. We show new applications of the notion of clothed particles in quantum field theory. Its realization by means of the clothing procedure put forward by Greenberg and Schweber allows one to express the total ...

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Gamma-gamma physics and meson transition form factors

Gamma-gamma physics and meson transition form factors

... It is now clear that direct searches for new particles at the high-energy accelerators must be complemented by low-energy high-precision measurements. One very promising observable is the muon anomalous magnetic moment ...

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Bs → Kℓv form factors with 2+1 flavors

Bs → Kℓv form factors with 2+1 flavors

... Figure 3. Chiral-continuum fit to the lattice form factors. These form factors are blinded, i.e., the person doing the analysis is given the current renormalizations, but they have been ...

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γγ Physics and Transition Form Factors with KLOE/KLOE2

γγ Physics and Transition Form Factors with KLOE/KLOE2

... Transition Form Factors (TFFs) of pseudo-scalar mesons both in time-like and space-like regions of momentum transfer has been of interest in KLOE-2 and also a main item in the KLOE-2 physics program ...

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Baryon Form Factors at BESIII

Baryon Form Factors at BESIII

... are assumed to be real, but the time-like form factors can be complex. At low momentum transfer, space-like FFs provide information on the distributions of the electric charges and magnetization within the ...

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Dispersive analysis of light-meson transition form factors

Dispersive analysis of light-meson transition form factors

... on-shell form factors and scattering amplitudes, hence observables that can to a large extent again be related to experimentally accessible quantities ...such form factors and scattering ...

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Electromagnetic form factors of nucleon resonances from CLAS

Electromagnetic form factors of nucleon resonances from CLAS

... The analysis based on the Schwinger-Dyson equations (DSE) in QCD [20-21] has been shown effective in revealing the complex dynamics of quarks and gluons leading to significant effects of diquark correlations and quark ...

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Form factors of the homogeneous sine-Gordon models

Form factors of the homogeneous sine-Gordon models

... between the tricritical Ising and the critical Ising model as analysed in [11]. How- ever, there is an important conceptual difference since we view the expressions (8) as describing the scattering of massive particles. ...

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Form Factors of the Elementary Field in the Bullough-Dodd Model

Form Factors of the Elementary Field in the Bullough-Dodd Model

... the form factors of local operators in the BD ...the form factors of the elementary field of the BD model at the self-dual point coincide with those of the elementary field of the SG model at ...

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Scalar isoscalar form factors for energies above 1 GeV

Scalar isoscalar form factors for energies above 1 GeV

... However due to additional channels as well as resonances above 1 GeV its application is limited to a energy regime below said threshold. In order to extend the description to a larger energy range we need to leave the ...

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Light meson form factors at high Q2 from lattice QCD

Light meson form factors at high Q2 from lattice QCD

... on the coarse lattice (set 2). The form factors with a strange current are found to be very similar, and so are the form factors with a light current. The spectator quark has only very small ...

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Form factors of integrable Heisenberg (higher) spin chains

Form factors of integrable Heisenberg (higher) spin chains

... The aim of the present article is to employ the Bethe ansatz approach and the solution of the quantum inverse scattering problem for higher spins to obtain determinant formulae for the form factors of spin ...

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Finite temperature correlation functions from form factors

Finite temperature correlation functions from form factors

... These expressions also exemplify our remark at the end of section 2, namely, that one can not take the scattering matrices (4.8) and compute the form factors there- after from first principles. In that case ...

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Determination of the Strange Nucleon Form Factors

Determination of the Strange Nucleon Form Factors

... the form factors may be entirely attributed to contributions from disconnected quark loops, ...a form where only the connected con- tribution to the combination (u p + d p ...

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Form Factors, Integrability and the AdS/CFT Correspondence

Form Factors, Integrability and the AdS/CFT Correspondence

... gent integral would lead to the renormalization of the wavefunction, however for the action (2.1.47) there is an extra factor from fermions running in the loop such that the total one-loop contribution is zero. This ...

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Dispersion theoretical analysis of the nucleon form factors

Dispersion theoretical analysis of the nucleon form factors

... cleon form factors over the whole range of momentum transfers in both the space-like and time-like ...the form factor ...electromagnetic form factors of the nucleon in the space- and ...

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