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NN, N-DELTA COUPLINGS AND THE QUARK-MODEL
Quark model vector axis vector
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2014/12/23
We examine mass-corrected SU(6) symmetry predictions in the quark model relating vector, axial-vector, and strong NN and NΔ couplings, and demonstrate that the experimental NΔ value is significantly h...
Delta(1232) and the polarizabilities of the nucleon
Polarizability baryon chiral perturbation theory meson
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2014/12/22
Previous calculations of the polarizabilities of the nucleon within the framework of heavy baryon chiral perturbation theory have included the contribution of the Δ(1232) only in its effects on variou...
The leading chiral electromagnetic correction to the nonleptonic Delta I=3/2 amplitude in kaon decays
Kaon decay electromagnetic radiation amplitude phenomenology electromagnetic effect
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2014/12/22
In kaon decay, electromagnetic radiative corrections can generate shifts in the apparent ΔI=3/2 amplitude of order αA0/A2not, vert, similar22α. In order to know the true ΔI=3/2 amplitude for compariso...
Parity-violating photoproduction of pi(+/-) on the Delta resonance
Asymmetry of real - photon resonance asymmetric nonzero coupling dynamic hadron p-wave mystery hyperon in violation of the o 'hara theorem of weak radiation hyperon decay
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2014/12/22
We analyze the real-photon asymmetry Aγ± for the parity-violating (PV) π± production on the Δ resonance via the reactions γ⃗+p→Δ+→π++n and γ⃗+d→Δ0+p→π-+p+p. This asymmetry is nonvanishing ...
Phenomenological issues in the determination of Delta Gamma(D)
D0 Δ Γ D experiments D0 decay model phase difference cleo
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2014/12/22
We consider the issue of determining the D0– width difference ΔΓD experimentally. The current situation is reviewed and suggestions for further study are given. We propose a number of D0 decay modes i...
Electroweak radiative corrections to parity-violating electroexcitation of the Delta
Axial vector and axis vector electroweak radiation elastic electron scattering
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2014/12/22
We analyze the degree to which parity-violating (PV) electroexcitation of the Δ(1232) resonance may be used to extract the weak neutral axial vector transition form factors. We find that the axial vec...
Light baryon magnetic moments and N ->Delta gamma transition in a Lorentz covariant chiral quark approach
Magnetic moment light baryons lorentz covariance baryons bound state pseudo-scalar meson
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2014/12/20
We calculate magnetic moments of light baryons and N→Δγ transition characteristics using a manifestly Lorentz covariant chiral quark approach for the study of baryons as bound states of constituent qu...
Axial and pseudoscalar form-factors of the Delta^+(1232)
Axial pseudoscalar form-factors Delta^+(1232)
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2011/1/13
We present first results on the axial and pseudoscalar D form factors. The analysis is carried
out in the quenched approximation where statistical errors are small and the lattice set-up can be inves...
Delta function singularity in the Reduction of Radial Schrodinger Equation
Laplace operator radial equation boundary condition singular
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2010/10/27
We obtain the extra delta-like singularity while reduction of the Laplace operator in
spherical coordinates, elimination of which restricts the radial wave functions at the origin. This restriction h...
Neutron Star Matter Including Delta Isobars
neutron star matter relativistic mean field equation of state
pion condensation
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2007/8/15
2004Vol.42No.1pp.99-102DOI:
Neutron Star Matter Including Delta Isobars
LIU Guang-Zhou,1,2 LIU
Wei,1 and ZHAO
En-Guang2
1 Center for Theoretical Physics and Departmen...