Conveners
2E: (Parallel) EWK and QCD
- David Strom (University of Oregon (US))
Thomas Becher
(University of Bern)
6/5/12, 2:30 PM
Standard Model & Beyond
Parallel Talk
I will discuss recent progress in the all-order resummation of logarithmically enhanced terms in the perturbative expansion of LHC cross sections. At leading logarithmic accuracy, this resummation can be achieved using parton showers. In my talk, I will discuss higher-log resummations performed with effective field theory or diagrammatic methods. The focus will be on recent results for...
Roberto Castello
(Universite Catholique de Louvain (BE))
6/5/12, 2:50 PM
Standard Model & Beyond
Parallel Talk
The associated production of jets and vector bosons allows for stringent tests of perturbative QCD calculations and is sensitive to the possible presence of new physics beyond the Standard Model. The mechanism of production of heavy quarks in association with a W or a Z, in particular, is only partially understood. A measurement of jet production rates in association with W and Z bosons in...
William James Barter
(High Energy Physics Group - Cavendish Laboratory - University of Cambridge)
6/5/12, 3:10 PM
Standard Model & Beyond
Parallel Talk
Results of several analyses based on the reconstruction of electroweak gauge bosons at LHCb are reported. The forward coverage of the LHCb detector provides unique sensitivity to various different observables that can be used to test the Standard Model predictions. The results include those on W and Z production and low-mass Drell-Yan production.
Oliver Stelzer-Chilton
(TRIUMF (CA))
6/5/12, 3:30 PM
Standard Model & Beyond
Parallel Talk
The mass of the W boson is sensitive to radiative corrections from the top quark and the Higgs boson. We present a new measurement of mW using 2.2/fb of sqrt(s) = 1.96 TeV ppbar collision data collected with the CDF II detector. Utilizing 470126 W → eν candidates and 624708 W → μν candidates, we measure mW = 80387±19 MeV. This is the most precise measurement of mW to date, more precise than...
Koichi Nagai
(University of Tsukuba (JP))
6/5/12, 3:50 PM
Standard Model & Beyond
Parallel Talk
Precise measurements of W and Z production, differential in p_T and rapidity, are shown. These provide stringent tests of QCD and of lepton universality and are used to extract information on the strange quark content of the proton. In addition, the polarisations of W bosons and of tau leptons produced in W decays are measured.
