Erratum: Nucleon and pion structure with lattice QCD simulations at physical value of the pion mass [Phys. Rev. D92, 114513 (2015)]
نویسندگان
چکیده
منابع مشابه
Pion-nucleon sigma term in lattice QCD.
We calculate both connected and disconnected contribution to the π-N σ-term in quenched lattice QCD with Wilson quark action on a 123 × 20 lattice at β = 5.7. The latter is evaluated with the aid of the variant wall source method, which was previously applied successfully for extraction of π-π scattering lengths and η meson mass. We found that the disconnected contribution is about twice larger...
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The isovector Nucleon electromagnetic form factors GE(q ) and GM(q ) are evaluated in Lattice QCD using Wilson fermions. A lattice of spatial extent 3 fm is used in the quenched theory allowing the extraction of the form factors for momentum transfer squared between 0.1 and 2 GeV for lowest pion mass of about 400 MeV. The calculation is also performed using two degenerate dynamical flavors of W...
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The effect of pion-pion scattering resonance on the isovector part of nucleon structure is analysed by a method similar to that of Frazer and Fulco, but with one more subtraction for dispersion relations on helicity amplitudes of nucleon·aritinucleon production process in order to remedy the divergence regarding the left-hand cut. If the subtracted spectral representations are used for the form...
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. We present lattice QCD calculations of nucleon electromagnetic form factors using pion masses m π ¼ 149, 202, and 2...
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In the framework of Wilson Chiral Perturbation Theory [1], we study the effect induced by a twisted Wilson term, as it appears in Twisted Mass QCD [2] (with 2 degenerate quarks). In particular we consider the vacuum orientation and the pion masses. The computations are done to NLO both in the mass and in the lattice spacing (i.e. to O(a)). There are no restrictions on the relative size of latti...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2016
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.93.039904