Conveners
Electroweak
- Cen Zhang (Brookhaven National Laboratory)
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Prof. Zack Sullivan (Illinois Institute of Technology)05/05/2015, 16:30parallel talkWe examine the sources of parton distribution errors in the W mass measurement, and point out shortcomings in the existing literature. Optimistic assumptions about strategies to reduce the error by normalizing to Z observables are examined and found to rely too heavily on assumptions about the parametrization and degrees of freedom of the parton distribution functions (PDFs). We devise a...Go to contribution page
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Jia Zhou (SUNY Buffalo)05/05/2015, 16:45parallel talkElectroweak (EW) corrections at the LHC can be enhanced at high energies due to soft/collinear radiation of W and Z bosons, being dominated by Sudakov-like corrections in the form of $\alpha_W^l\log^n(Q^2/M_W^2)\;(n\le 2l-1, \alpha_W = \frac{\alpha}{4\pi\sin\theta_W^2})$ when the energy scale $Q$ enters the TeV regime. Thus, the inclusion of EW corrections in LHC predictions is important...Go to contribution page
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Steven Honeywell (Florida State University)05/05/2015, 17:00parallel talkA precise determination of V+b processes (V=Z, photon) at hadron colliders opens the possibility of measuring the b-quark PDF at the LHC. In this context, we have computed the one-loop electroweak (EW) corrections for the production of a b-jet in association with a Z boson in hadronic collisions. In the interest of accuracy and future developments, we retain the b-quark mass both in the...Go to contribution page
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Aparajita Dattagupta (Indiana University (US))05/05/2015, 17:15NLO & QCDparallel talkATLAS measurements of multi-boson production processes involving combinations of up to three W, Z and isolated photons are summarized. Production processes sensitive to vector-boson fusion and vector-boson scattering such as electroweak production of single Z and W bosons associated with two forward jets and the same-sign WW production at 8 TeV pp collisions are also presented and...Go to contribution page
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Samuel Webb (University of Manchester (GB))05/05/2015, 17:30Standard Modelparallel talkMeasurements of vector boson production allow tests of perturbative and non-peturbative QCD and of electroweak couplings, as well as being important backgrounds in measurements of Higgs properties and searches for new resonances. Six of the latest results from ATLAS in this area will be presented including measurements of the W cross-section in association with jets, which tests QCD in a...Go to contribution page