Same-sign W pair production as a probe of double parton scattering at the LHC

Same-sign W pair production as a probe of double parton scattering at the LHC

We study the production of same-sign W boson pairs at the LHC in double parton interactions. Compared with simple factorised double parton distributions (dPDFs), we show that the recently developed dPDFs, GS09, lead to non-trivial kinematic correlations between the W bosons. A numerical study of the...

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Veröffentlicht in:arXiv.org 2010-06
Hauptverfasser: Gaunt, Jonathan R, Chun-Hay Kom, Kulesza, Anna, Stirling, W James
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Bosons
Pair production
Physics - High Energy Physics - Phenomenology
Scattering
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Chun-Hay Kom
Kulesza, Anna
Stirling, W James
description We study the production of same-sign W boson pairs at the LHC in double parton interactions. Compared with simple factorised double parton distributions (dPDFs), we show that the recently developed dPDFs, GS09, lead to non-trivial kinematic correlations between the W bosons. A numerical study of the prospects for observing this process using same-sign dilepton signatures, including same-sign WWjj, di-boson and heavy flavour backgrounds, at 14 TeV centre-of-mass energy is then performed. It is shown that a small excess of same-sign dilepton events from double parton scattering over a background dominated by single scattering WZ(gamma*) production could be observed at the LHC.
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subjects Bosons
Pair production
Physics - High Energy Physics - Phenomenology
Scattering
title Same-sign W pair production as a probe of double parton scattering at the LHC
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