[Triumf-seminars] TRIUMF Seminar today at 14:00

[TRIUMF Seminars]

Date/Time: Thu 2012-03-01 at 14:00

Location:  Auditorium          

Speaker:   Oliver Stelzer-Chilton (TRIUMF)

Title:     The New Precision Measurement of the W Boson Mass by CDF

Abstract: It is through radiative quantum corrections that the W boson mass is sensitive to other particles. As a result, it can be used to set a significant constraint on the mass of the yet unobserved Higgs boson. The approach of an indirect constraint was already quite successful in the eventual discovery of the top quark in 1995. The indirect Higgs boson mass constraint is currently limited by the uncertainty on the direct W boson mass measurement. The new CDF result represented the most precise measurement of the W boson mass to date and now dominates the world average. This significantly narrows down the mass window for the direct search. The current result confirms the low mass preference for the Higgs boson mass and is compatible with the latest direct searches at the LHC which constrain the Higgs mass to less than 127 GeV.

Stimulants available 15 minutes before the talk.

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