Adding pseudo-observables to the four-lepton experimentalist’s toolbox

Gainer, James S.; González-Alonso, Martín; Greljo, Admir; Isaković, Senad; Isidori, Gino; Korytov, Andrey; Lykken, Joseph; Marzocca, David; Matchev, Konstantin T.; Milenović, Predrag; Mitselmakher, Guenakh; Mrenna, Stephen; Park, Myeonghun; Rinkevicius, Aurelijus; Selimović, Nudžeim

doi:10.1007/JHEP10(2018)073

Title: Adding pseudo-observables to the four-lepton experimentalist’s toolbox

Journal Article · 09 October 2018 · Journal of High Energy Physics (Online)

DOI: https://doi.org/10.1007/JHEP10(2018)073 · OSTI ID:1471725

Gainer, James S. ^[1]; González-Alonso, Martín ^[2]; Greljo, Admir ^[3]; Isaković, Senad ^[4]; Isidori, Gino ^[5]; Korytov, Andrey ^[6]; Lykken, Joseph ^[7]; Marzocca, David ^[8]; Matchev, Konstantin T. ^[6]; Milenović, Predrag ^[2]; Mitselmakher, Guenakh ^[6]; Mrenna, Stephen ^[7]; Park, Myeonghun ^[9]; Rinkevicius, Aurelijus ^[10]; Selimović, Nudžeim ^[4]

Univ. of Hawaii, Honolulu, HI (United States)
European Organization for Nuclear Research (CERN), Geneva (Switzerland)
Univ. Mainz, Mainz (Germany); Univ. of Sarajevo, Bosnia (Herzegovina)
Univ. of Sarajevo, Bosnia (Herzegovina)
Univ. Zurich, Zurich (Switzerland)
Univ. of Florida, Gainesville, FL (United States)
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
INFN, Trieste (Italy)
Seoultech, Seoul (Korea)
Cornell Univ., Ithaca, NY (United States)

Here, the "golden" channel, in which the newly-discovered Higgs boson decays to four leptons by means of intermediate vector bosons, is important for determining the properties of the Higgs boson and for searching for subtle new physics effects. Different approaches exist for parametrizing the relevant Higgs couplings in this channel; here we relate the use of pseudo-observables to methods based on specifying the most general amplitude or Lagrangian terms for the $HVV$ interactions. We also provide projections for sensitivity in this channel in several novel scenarios, illustrating the use of pseudo-observables, and analyze the role of kinematic distributions and (ratios of) rates in such $$H\to4\ell$$ studies.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Univ. of Hawaii, Honolulu, HI (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Grant/Contract Number:: AC02-07CH11359; SC0010504

OSTI ID:: 1471725

Report Number(s):: CERN-TH--2018-178; FERMILAB-PUB--18-332-CD; UH-511-1255-18; arXiv:1808.00965; 1684961

Journal Information:: Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 10 Vol. 2018; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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