Two-loop helicity amplitudes for the production of two off-shell electroweak bosons in gluon fusion

Caola, Fabrizio; Henn, Johannes M.; Melnikov, Kirill; Smirnov, Alexander V.; Smirnov, Vladimir A.

doi:10.1007/JHEP06(2015)129

Title: Two-loop helicity amplitudes for the production of two off-shell electroweak bosons in gluon fusion

Journal Article · Thu Jun 18 00:00:00 EDT 2015 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/JHEP06(2015)129· OSTI ID:1454729

Caola, Fabrizio ^[1]; Henn, Johannes M. ^[2]; Melnikov, Kirill ^[3]; Smirnov, Alexander V. ^[4]; Smirnov, Vladimir A. ^[5]

TH Unit, CERN, Geneva (Switzerland). PH Dept.
Institute for Advanced Study, Princton, NJ (United States)
Karlsruhe Institute of Technology (Germany). Institute for Theoretical Particle Physics
Moscow State University (Russia). Research Computing Center
Moscow State University (Russia). Skobeltsyn Institute of Nuclear Physics

We compute the part of the two-loop virtual amplitude for the process gg→V₁V₂→(l₁$$\overline{l}$$'₂)(l₂$$\overline{l}$$'₂), where V _1,2 are arbitrary electroweak gauge bosons, that receives contributions from loops of massless quarks. Invariant masses of electroweak bosons are allowed to be different from each other. Our result provides an important ingredient for improving the description of gluon fusion contribution to the production of four-lepton final states at the LHC.

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Research Organization:: Institute for Advanced Study, Princeton, NJ (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0009988

OSTI ID:: 1454729

Journal Information:: Journal of High Energy Physics (Online), Vol. 2015, Issue 6; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 44 works

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