Abstract
The relatively high cross sections and the clean signatures of multi-lepton final states make the and pp → WZ0 → 3ℓ(ℓ = e, μ) processes accessible in early CMS data. The CMS potential for the observation and study of these processes is assessed using fully simulated signal and background Monte Carlo samples. The main systematic effects relevant for cross section measurements with 1 fb−1 and 10 fb−1 of data are addressed. We demonstrate that multiple gauge–boson production in pp collisions at LHC energies can be observed in the early phase of the experiment, with an integrated luminosity of or less.
Highlights
The multi-lepton final states of multiple gauge-boson production are an important background in the search for
Its early measurement is impor¤ ta¥§n¤¦t.¥ In addition, th¤ e¥s¤tu¥ dy of spin correlations can further discriminate a Higgs-boson signal from the ¤ ¥ background: production results in bosons with both transverse and longitudinal polarisation while the bosons from Higgs-boson decays tend to be longitudinally polarised
M¤ ai¥n¤s¥ oaunrcdes of¢ Section sy ste¤m¥ actircosusnsceecrttiaoinntsiewsitihn 5Sfebc9tio8 nan4d. 6 outlines the conclusion that di-boson production can be observed in early LHC data, with the first inverse femtobarn of luminosity or less
Summary
V. Brigljevic, D. Ferencek, S. Morovic, M. Planinic Rudjer Boskovic Institute, Zagreb, Croatia S. Beauceron, S. Ganjour, G. Hamel de Monchenault DSM/Dapnia, CEA/Saclay, F-91191 Gif-sur-Yvette, France A. Oh CERN, Geneva, Switzerland B.J. Huckvale, C.K. Mackay Department of Physics, University of Bristol, Bristol, UK P.R. Hobson Department of Electronic and Computer Engineering, Brunel University, Uxbridge, UK
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