Erratum: Bottomonium hyperfine splittings from lattice nonrelativistic QCD including radiative and relativistic corrections [Phys. Rev. D89, 031502(R) (2014)]
نویسندگان
چکیده
منابع مشابه
Hyperfine splittings in bottomonium
A universal description of the hyperfine splittings (HFS) in bottomonium and the Bq (q 1⁄4 n, s, c) mesons is obtained with a universal strong coupling constant sð Þ 1⁄4 0:310 in a spin-spin potential. Other characteristics are calculated within the field correlator method, taking the freezing value of the strong coupling independent of nf. The HFS MðB Þ MðBÞ 1⁄4 45:5ð1Þ MeV, MðB sÞ MðBsÞ 1⁄4 4...
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متن کاملRadiative corrections to the kinetic couplings in nonrelativistic lattice QCD.
The heavy-quark mass and wave function renormalizations, energy shift, and radiative corrections to two important couplings, the so-called kinetic couplings, in nonrelativistic lattice QCD are determined to leading order in tadpole-improved perturbation theory. The scales at which to evaluate the running QCD coupling for these quantities, except the wave function renormalization, are obtained u...
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We extend the formalism based on perturbative QCD that was developed in our previous work, and compute the hyperfine splittings of the bottomonium spectrum as well as the fine and hyperfine splittings of the charmonium spectrum. All the corrections up to O(αSm) are included in the computations. We find agreement (with respect to theoretical uncertainties) with the experimental values whenever a...
متن کاملRadiative corrections to sfermion mass splittings.
We study the one-loop radiative corrections to the SU(2) breaking mass splittings between sfermions in SU(2) doublets in the Minimal Supersymmetric Standard Model. At tree-level, the differences of mass squared m f̃1L −m f̃2L of SU(2) doublet sfermions (f̃1, f̃2)L in the first two generations are determined by tanβ, and are universal to sleptons and squarks. The radiative correction, however, break...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2015
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.92.039904