English

Bottom-quark mass from finite energy QCD sum rules

High Energy Physics - Phenomenology 2015-06-03 v2 High Energy Physics - Lattice

Abstract

Finite energy QCD sum rules involving both inverse and positive moment integration kernels are employed to determine the bottom quark mass. The result obtained in the MSˉ\bar{\text {MS}} scheme at a reference scale of 10GeV10\, {GeV} is mˉb(10GeV)=3623(9)MeV\bar{m}_b(10\,\text{GeV})= 3623(9)\,\text{MeV}. This value translates into a scale invariant mass mˉb(mˉb)=4171(9)MeV\bar{m}_b(\bar{m}_b) = 4171 (9)\, {MeV}. This result has the lowest total uncertainty of any method, and is less sensitive to a number of systematic uncertainties that affect other QCD sum rule determinations.

Keywords

Cite

@article{arxiv.1111.5742,
  title  = {Bottom-quark mass from finite energy QCD sum rules},
  author = {S. Bodenstein and J. Bordes and C. A. Dominguez and J. Penarrocha and K. Schilcher},
  journal= {arXiv preprint arXiv:1111.5742},
  year   = {2015}
}

Comments

An appendix has been added with explicit expressions for the polynomials used in Table I