Single-top hadroproduction in association with a W boson

By Stefano Frixione, E. Laenen, Patrick Motylinski, C. D. White, Bryan R. Webber. 2008

768 citations recorded by the source corpus.

We present the calculation of the Wt single-top production channel to next-to-leading order in QCD, interfaced with parton showers within the MC@NLO formalism. This channel provides a complementary way of investigating the properties of the Wtb vertex, with respect to the s- and t-channels. We pay special attention to the separation of this process from top quark pair production.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/9ce83635b2429880360a66c0df178b2b60bc931d

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In Nuclear and High Energy Physics

Citations in the corpus

Search for direct top-squark pair production in final states with two leptons in pp collisions at root s=8 TeV with the ATLAS detector (2014, neutral): “0, use the diagram removal [93] scheme.”
Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at root s=8 TeV with the ATLAS detector (2015, methodology): “Single-top production samples are generated with MC@NLO [73] for the s- and Wt-channel [74], while AcerMC-v3.”
QCD Radiation in the Production of Heavy Colored Particles at the LHC (2008, background): “In this case the process gg → tWb contains a diagram with a resonant top which overlaps with tt̄ production [23, 24]”
Search for the standard model Higgs boson produced in association with top quarks and decaying into a bb¯ pair in pp collisions at √s=13 TeV with the ATLAS detector (2018, methodology): “Overlap between the tt̄ and Wt final states was handled using the “diagram removal” scheme [72].”
NLO matrix elements and truncated showers (2010, methodology): “The first method, Mc@Nlo, pioneered in [22], and implemented for a large number of processes [23–27] relies on using the parton-shower kernels and their universal behaviour in the soft and collinear limits to subtract the infrared divergences of real-emission contributions to the NLO cross section.”
NLO single-top production matched with shower in POWHEG: s- and t-channel contributions (2009, background): “Radiative corrections for single-top production have been known for years [4, 11, 12, 13, 14, 15, 16, 17, 18], while the implementation of these results into a next-to-leading-order Shower Monte Carlo (SMC), namely MC@NLO [19, 20], is more recent [21, 22].”
b-initiated processes at the LHC: a reappraisal (2012, neutral): “26] pp → tW +X [24, 27], pp → H±t+X [28, 29] pp → φ(bb) +X [30], pp → φb(b) +X with φ = H,A [31], pp→ V b+X [32, 33], and pp→ V bj +X [34, 35] with V = W,Z.”
Search for production of vector-like quark pairs and of four top quarks in the lepton-plus-jets final state in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector (2015, background): “All diboson samples are normalised to their NLO theoretical cross sections [108] Samples of tt̄V events, including tt̄WW , are generated with up to two additional partons using Madgraph5 1.3.28 with the CTEQ6L1 PDF set, and interfaced to Pythia 6.425 with the AUET2B UE tune.”
A new method to distinguish hadronically decaying boosted Z bosons from W bosons using the ATLAS detector (2015, neutral): “Removal’ (DR) scheme is used for overlap with t t̄ [22].”