Electroweak Corrections to ppμ+μe+e+X at the LHC: A Higgs Boson Background Study

B. Biedermann, A. Denner, S. Dittmaier, L. Hofer, and B. Jäger
Phys. Rev. Lett. 116, 161803 – Published 21 April 2016

Abstract

The first complete calculation of the next-to-leading-order electroweak corrections to four-lepton production at the LHC is presented, where all off-shell effects of intermediate Z bosons and photons are taken into account. Focusing on the mixed final state μ+μe+e, we study differential cross sections that are particularly interesting for Higgs boson analyses. The electroweak corrections are divided into photonic and purely weak corrections. The former exhibit patterns familiar from similar W- or Z-boson production processes with very large radiative tails near resonances and kinematical shoulders. The weak corrections are of the generic size of 5% and show interesting variations, in particular, a sign change between the regions of resonant Z-pair production and the Higgs signal.

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  • Received 6 February 2016

DOI:https://doi.org/10.1103/PhysRevLett.116.161803

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

B. Biedermann1, A. Denner1, S. Dittmaier2, L. Hofer3, and B. Jäger4

  • 1Julius-Maximilians-Universität Würzburg, Institut für Theoretische Physik und Astrophysik, D-97074 Würzburg, Germany
  • 2Albert-Ludwigs-Universität Freiburg, Physikalisches Institut, D-79104 Freiburg, Germany
  • 3Department d’Estructura i Constituents de la Matèria (ECM), Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (UB), Martí Franquès 1, E-08028 Barcelona, Spain
  • 4Eberhard-Karls-Universität Tübingen, Institut für Theoretische Physik, D-72076 Tübingen, Germany

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Vol. 116, Iss. 16 — 22 April 2016

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