搜索结果: 1-15 共查到“物理学 Delta”相关记录25条 . 查询时间(0.071 秒)
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...
Nucleon, Delta and Omega excited state spectra at three pion mass values
Nucleon Delta excited state spectra
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2011/1/6
The energies of the excited states of the Nucleon, Delta and Omega are computed in lattice QCD, using two light quarks and one strange quark on anisotropic lattices. The calculations are performed at ...
Nucleon, Delta and Omega excited state spectra at three pion mass values
Nucleon Delta excited state spectra
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2011/1/6
The energies of the excited states of the Nucleon, Delta and Omega are computed in lattice QCD, using two light quarks and one strange quark on anisotropic lattices. The calculations are performed at ...
Axial and pseudoscalar form-factors of the Delta^+(1232)
Axial pseudoscalar form-factors
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2011/1/6
We present first results on the axial and pseudoscalar $\Delta$ form factors. The analysis is carried out in the quenched approximation where statistical errors are small and the lattice set-up can be...
Nucleon to Delta transition form factors with $N_F=2+1$ domain wall fermions
Nucleon Delta transition
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2011/1/7
We calculate the electromagnetic, axial and pseudo-scalar form factors of the Nucleon to $\Delta(1232)$ transition using two dynamical light degenerate quarks and a dynamical strange quark simulated w...
Momentum-Resolved Ultrafast Electron Dynamics in Superconducting Bi2Sr2CaCu2O8+delta
Momentum-Resolved Ultrafast Electron Dynamics Bi2Sr2CaCu2O8+delta
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2010/11/18
The non-equilibrium state of the high-Tc superconductor Bi2Sr2CaCu2O8+ and its ultrafast dynamics have been investigated by femtosecond time- and angle-resolved photoemission spectroscopy well below ...
Nucleon, Delta and Omega excited state spectra at three pion mass values
Nucleon Delta Omega excited state spectra three pion mass values
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2011/1/13
The energies of the excited states of the Nucleon, D and W are computed in lattice QCD, using
two light quarks and one strange quark on anisotropic lattices. The calculations are performed at three v...
Nucleon to Delta transition form factors with $N_F=2+1$ domain wall fermions
Analysis of the $N_f=2+1$ lattice QCD results lowest-lying baryon masses covariant ChPT
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2011/1/7
We calculate the electromagnetic, axial and pseudo-scalar form factors of the Nucleon to
(1232) transition using two dynamical light degenerate quarks and a dynamical strange
quark simulated with t...
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...