English

$m_b$ at $m_H$: the running bottom quark mass and the Higgs boson

High Energy Physics - Phenomenology 2022-03-22 v2 High Energy Physics - Experiment

Abstract

We present a new measurement of the bottom quark mass in the MSˉ\bar{MS} scheme at the renormalization scale of the Higgs boson mass from measurements of Higgs boson decay rates at the LHC: mb(mH)=2.600.31+0.36m_b(m_H)= 2.60^{+0.36}_{-0.31} GeV. The measurement has a negligible theory uncertainty and excellent prospects to improve at the HL-LHC and a future Higgs factory. Confronting this result, and mb(mb)m_b(m_b) from low-energy measurements and mb(mZ)m_b(m_Z) from ZZ-pole data, with the prediction of the scale evolution of the renormalization group equations, we find strong evidence for the "running" of the bottom quark mass.

Keywords

Cite

@article{arxiv.2110.10202,
  title  = {$m_b$ at $m_H$: the running bottom quark mass and the Higgs boson},
  author = {Javier Aparisi and Juan Fuster and André Hoang and Adrián Irles and Christopher Lepenik and Germán Rodrigo and Michael Spira and Seidai Tairafune and Marcel Vos and Hitoshi Yamamoto and Ryo Yonamine},
  journal= {arXiv preprint arXiv:2110.10202},
  year   = {2022}
}

Comments

4 pages + 2 figures + 2 pages of supplementary material