English

Determining $\alpha_s(m_Z)$ from Thrust with Power Corrections

High Energy Physics - Phenomenology 2024-05-24 v1

Abstract

We update and extend a previous N3^3LL^\prime+O(αs3){\cal O}(\alpha_s^3) strong coupling determination from thrust data. In particular, we carry out a fit with data fully restricted to the dijet region seeking to minimize the potential impact of power corrections that go beyond dijet configurations. In addition, we parametrize deviations from the dijet power correction in order to add an additional source of uncertainty in the result for αs(mZ)\alpha_s(m_Z). We also show that the inclusion of resummation is important to achieve stability with respect to varying the fit region.

Keywords

Cite

@article{arxiv.2405.14380,
  title  = {Determining $\alpha_s(m_Z)$ from Thrust with Power Corrections},
  author = {Miguel A. Benitez-Rathgeb and André H. Hoang and Vicent Mateu and Iain W. Stewart and Gherardo Vita},
  journal= {arXiv preprint arXiv:2405.14380},
  year   = {2024}
}

Comments

4 pages, 3 figures. Contribution to the 2024 QCD session of the 58th Rencontres de Moriond

R2 v1 2026-06-28T16:36:57.238Z