搜索结果: 1-15 共查到“物理学 Axial”相关记录33条 . 查询时间(0.39 秒)
Nucleon Axial Matrix Elements
Nuclear axis matrix elements chiral perturbation theory
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2014/12/22
Current issues associated with nucleon axial matrix elements are studied, including the Goldberger-Treiman discrepancy, the induced pseudoscalar, and SU(3) chiral perturbation theory.
Two-loop analysis of axial vector current propagators in chiral perturbation theory
Isospin axial vector hypercharged breeding chiral perturbation theory meson hypercharged axial vector polarization
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2014/12/22
We perform a calculation of the isospin and hypercharge axial vector current propagators [ΔA3μν(q) and ΔA8μν(q)] to two loops in SU(3)×SU(3) chiral perturbation theory. A large number of O(p6) diverge...
Chiral corrections to the vector and axial couplings of quarks and baryons
Vector the axial quark coupling lorentz covariance coupling control octet weight baryon matrix elements
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2014/12/19
We calculate chiral corrections to the semileptonic vector and axial quark coupling constants using a manifestly Lorentz covariant chiral quark approach up to order O(p4) in the two- and three-flavor ...
The $Δ(1232)$ axial charge and form factors from lattice QCD
The $Δ(1232)$ axial charge factors lattice QCD
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2011/7/21
We present the first calculation on the $\Delta$ axial-vector and pseudoscalar form factors using lattice QCD. Two Goldberger-Treiman relations are derived and examined.
The nucleon axial mass and the MiniBooNE Quasielastic Neutrino-Nucleus Scattering problem
nucleon axial mass MiniBooNE Quasielastic Neutrino-Nucleus Scattering problem
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2011/7/21
The charged-current double differential neutrino cross section, measured by the MiniBooNE Collaboration, has been analyzed using a microscopical model that accounts for, among other nuclear effects, l...
Technique for high axial shielding factor performance of large-scale, thin, open-ended, cylindrical Metglas magnetic shields
Metglas, magnetic shielding axial shielding factor transverse shielding factor
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2011/8/4
Abstract: Metglas 2705M is a low-cost commercially-available, high-permeability Cobalt-based magnetic alloy, provided as a 5.08-cm wide and 20.3-$\mu$m thick ribbon foil. We present an optimized const...
Quasi-bound states in the continuum: a dynamical coupled-channel calculation of axial-vector charmed mesons
Quasi-bound states dynamical coupled-channel calculation High Energy Physics - Phenomenology
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2011/7/28
Quasi-bound states in the continuum: a dynamical coupled-channel calculation of axial-vector charmed mesons.
Quasi-bound states in the continuum: a dynamical coupled-channel calculation of axial-vector charmed mesons
Quasi-bound coupled-channel axial-vector
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2011/9/14
Masses and widths of the charmed axial-vector mesons D1(2420), D1(2430), Ds1(2536), and Ds1(2460) are calculated nonperturbatively in the Resonance-Spectrum-Expansion model, by coupling various open a...
Energy release from hadron-quark phase transition in neutron stars and the axial $w$-mode of gravitational waves
Energy release hadron-quark phase transition axial $w$-mode of gravitational waves
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2010/12/21
Describing the hyperonic and quark phases of neutron stars with an isospin- and momentum-
dependent effective interaction for the baryon octet and the MIT bag model, respectively, and using the Gibbs...
Axial and Vector Structure Functions for Electron- and Neutrino- Nucleon Scattering Cross Sections at all $Q^2$ using Effective Leading order Parton Distribution Functions
Axial Vector Structure Functions Electron- Neutrino- Nucleon Scattering Cross Sections all $Q^2$ Effective Leading Parton Distribution Functions
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2010/12/27
We construct a model for inelastic neutrino- and electron-nucleon scattering cross sections using effective leading order parton distribution functions with a new scaling variable $\xi_w$. Non-perturb...
Axial and electromagnetic observables of hyperons in 2-flavor chiral perturbation theory
Axial electromagnetic observables hyperons 2-flavor chiral perturbation theory
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2011/1/6
Two-flavor chiral expansions provide a useful perturbative framework to study hadron properties. Such expansions should exhibit marked improvement over the conventional three-flavor chiral expansion. ...
Axial and electromagnetic observables of hyperons in 2-flavor chiral perturbation theory
Axial electromagnetic observables hyperons 2-flavor chiral perturbation theory
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2011/1/6
Two-flavor chiral expansions provide a useful perturbative framework to study hadron properties. Such expansions should exhibit marked improvement over the conventional three-flavor chiral expansion. ...
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...
Axial Symmetry, Anti-BRST Invariance and Modified Anomalies
Axial Symmetry Anti-BRST Invariance Modified Anomalies
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2010/12/23
It is shown that anti-BRST symmetries are quantized counterparts of local axial symmetries in gauge theories. An extended form of descent equations is worked out which yields a set of modified consist...
Axial and electromagnetic observables of hyperons in 2-flavor chiral perturbation theory
Axial electromagnetic observables of hyperons 2-flavor chiral perturbation theory
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2011/1/13
Two-flavor chiral expansions provide a useful perturbative framework to study hadron properties.Such expansions should exhibit marked improvement over the conventional three-flavor chiral expansion.