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Z boson as “the standard candle” for high-precision W boson physics at LHC

2007/02/28 by M. W. Krasny, M.W. Krasny, F. Fayette +4 · 2 citations
Computer Science · Physics and Astronomy · #Beam (structure) #Boson #Collider #Computational Physics and Python Applications #Flexibility (engineering) #High-Energy Particle Collisions Research #Large Hadron Collider #Measure (data warehouse) #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Production (economics) #Quantum chromodynamics #Standard Model (mathematical formulation) #hep-ph

paper · pdf · doi:10.1140/epjc/s10052-007-0321-8

published as Eur.Phys.J.C51:607-617,2007 · 20 pages, 4 figures

arxiv created 2007/03/09 · openalex publication_date 2007/06/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

In this paper we propose a strategy for measuring the inclusive W-boson production processes at LHC. This strategy exploits simultaneously the unique flexibility of the LHC collider in running variable beam particle species at variable beam energies, and the configuration flexibility of the LHC detectors. We propose their concrete settings for a precision measurement of the Standard Model parameters. These dedicated settings optimise the use of the Z boson and Drell-Yan pair production processes as ``the standard reference candles''. The presented strategy allows to factorise and to directly measure those of the QCD effects which affect differently the W and Z production processes. It reduces to a level of 10-4 the impact of uncertainties in the partonic distribution functions (PDFs) and in the transverse momentum of the quarks on the measurement precision. Last but not the least, it reduces by a factor of 10 an impact of systematic measurement errors, such as the energy scale and the measurement resolution, on the W-boson production observables.

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