Affiliation:
1. Department of Physics, Duke University, Durham, NC 27708, USA
Abstract
This review presents the world's most precise measurement of the W-boson mass mW using data corresponding to ≈ 2.2 fb-1 integrated luminosity collected with the CDF II detector at Fermi National Accelerator Laboratory (Fermilab). With samples of 470,126 W → eν candidates and 624,708 W → μν candidates, mW is measured to be 80387±12 stat ± 15 syst = 80387 ± 19 MeV [Phys. Rev. Lett.108, 151803 (2012)]. This result significantly exceeds the precision of all previous measurements and improves the world averaged precision by 30%.
Publisher
World Scientific Pub Co Pte Lt
Subject
General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics