English

ResBos2 and the CDF W Mass Measurement

High Energy Physics - Phenomenology 2022-07-11 v2 High Energy Physics - Experiment

Abstract

The recent CDF WW mass measurement of 80,433 ±\pm 9 MeV is the most precise direct measurement. However, this result deviates from the Standard Model predicted mass of 80,359.1 ±\pm 5.2 MeV by 7σ7\sigma. The CDF experiment used an older version of the ResBos code that was only accurate at NNLL+NLO, while the ResBos2 code is able to make predictions at N3{}^3LL+NNLO accuracy. We determine that the data-driven techniques used by CDF capture most of the higher order corrections, and using higher order corrections would result in a decrease in the value reported by CDF by at most 10 MeV.

Keywords

Cite

@article{arxiv.2205.02788,
  title  = {ResBos2 and the CDF W Mass Measurement},
  author = {Joshua Isaacson and Yao Fu and C. -P. Yuan},
  journal= {arXiv preprint arXiv:2205.02788},
  year   = {2022}
}

Comments

13 pages, 15 figures