Journal
PHYSICAL REVIEW LETTERS
Volume 116, Issue 16, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.161803
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Funding
- German Science Foundation (DFG) [GRK 2044]
- DFG [DE 623/2-1]
- Spanish MINECO [MDM-2014-0369]
- University of Tubingen (DFG) [ZUK 63]
- German Federal Ministry for Education and Research (BMBF) [05H2015]
- [FPA2013-46570-C2-1-P]
- [2014-SGR-104]
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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 mu(+)mu(-)e(+)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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