Unpolarized proton PDF at NNLO from lattice QCD with physical quark masses
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.107.074509
Abstract: We present a lattice QCD calculation of the unpolarized isovector quark parton distribution function (PDF) of the proton utilizing a perturbative matching at next-to-next-to-leading-order (NNLO). The calculations are carried out using a single ensemble of… read more here.
Keywords: pdf; quark; physical quark; lattice qcd ... See more keywords
Relations between Heavy-light Meson and Quark Masses
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.97.034503
Abstract: The study of heavy-light meson masses should provide a way to determine renormalized quark masses and other properties of heavy-light mesons. In the context of lattice QCD, for example, it is possible to calculate hadronic… read more here.
Keywords: heavy light; light meson; quark masses; theory ... See more keywords
Lattice QCD determination of neutron-antineutron matrix elements with physical quark masses
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.074510
Abstract: Matrix elements of six-quark operators are needed to extract new physics constraints from experimental searches for neutron-antineutron oscillations. This work presents in detail the first lattice quantum chromodynamics calculations of the necessary neutron-antineutron transition matrix… read more here.
Keywords: matrix elements; quark masses; quark; neutron antineutron ... See more keywords
Matching-invariant running of quark masses in quantum chromodynamics
Sign Up to like & getrecommendations! Published in 2022 at "International Journal of Modern Physics E"
DOI: 10.1142/s0218301322500161
Abstract: The conventional quark mass is not continuous at thresholds. In this paper, we derive matching-invariant quark masses which are continuous everywhere. They are generally expanded as an obvious function of the logarithmic [Formula: see text]… read more here.
Keywords: running quark; quark masses; matching invariant; masses quantum ... See more keywords