EP Seminar

A Precise Measurement of the W Boson Mass with CDF

Name: A Precise Measurement of the W Boson Mass with CDF
Start: 2012-03-27T11:00:00+02:00
End: 2012-03-27T12:00:00+02:00
Location: CERN

by Chris Hays (Oxford)

Tuesday 27 Mar 2012, 11:00 → 12:00 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110

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Description

The W boson mass measurement probes quantum corrections to the W propagator, such as those arising from supersymmetric particles or Higgs bosons. The new measurement from CDF is more precise than the previous world average, providing a stringent constraint on the mass of the Higgs boson in the context of the Standard Model. I describe this measurement, performed with 2.2/fb of data using 1.1 million candidates in the electron and muon decay channels, with three kinematic fits in each channel. The measurement uses in-situ calibrations from cosmic rays, J/psi and Upsilon data, and W- and Z-boson decays, with multiple cross-checks including independent determinations of the Z boson mass in both channels. The W-boson mass is measured to be 80387 +- 19 MeV/c^2.

Organised by

M. Mangano, M. Spiropulu, G. Unal......................... Tea and Coffee will be served at 10h30

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A Precise Measurement of the W Boson Mass with CDF

by Chris Hays (Oxford)

4/3-006 - TH Conference Room

CERN

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