Search for heavy ZZ resonances in the $\ell ^+\ell ^-\ell ^+\ell ^-$ and $\ell ^+\ell ^-\nu \bar{\nu }$ final states using proton–proton collisions at $\sqrt{s}= 13$   $\text {TeV}$ with the ATLAS detector

Aaboud, M.; Aad, Georges; Abbott, Brad; Abdinov, Ovsat; Abeloos, Baptiste; Abidi, Syed Haider; AbouZeid, Ossama; Abraham, Nicola; Abramowicz, Halina; Abreu, Henso

doi:10.1140/epjc/s10052-018-5686-3

Search for heavy ZZ resonances in the $\ell ^+\ell ^-\ell ^+\ell ^-$ and $\ell ^+\ell ^-\nu \bar{\nu }$ final states using proton–proton collisions at $\sqrt{s}= 13$ $\text {TeV}$ with the ATLAS detector

ATLAS

Collaboration

Dec 18, 2017

51 pages

Published in:

Eur.Phys.J.C 78 (2018) 4, 293

Published: Apr 11, 2018

e-Print:

1712.06386 [hep-ex]

DOI:

10.1140/epjc/s10052-018-5686-3

PDG: Mass Limits in General two-Higgs-doublet Models

Report number:

CERN-EP-2017-251

Experiments:

CERN-LHC-ATLAS

View in:

datasets

reference search165 citations

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Abstract: (Springer)

A search for heavy resonances decaying into a pair of

Z

bosons leading to

\ell ^+\ell ^-\ell ^+\ell ^-

and

\ell ^+\ell ^-\nu \bar{\nu }

final states, where

\ell

stands for either an electron or a muon, is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13

\text {TeV}

corresponding to an integrated luminosity of 36.1

\hbox {fb}^{-1}

collected with the ATLAS detector during 2015 and 2016 at the Large Hadron Collider. Different mass ranges for the hypothetical resonances are considered, depending on the final state and model. The different ranges span between 200 and 2000

\text {GeV}

. The results are interpreted as upper limits on the production cross section of a spin-0 or spin-2 resonance. The upper limits for the spin-0 resonance are translated to exclusion contours in the context of Type-I and Type-II two-Higgs-doublet models, while those for the spin-2 resonance are used to constrain the Randall–Sundrum model with an extra dimension giving rise to spin-2 graviton excitations.

Note:

51 pages in total, author list starts at page 35, 10 figures, 5 tables, published version. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-19/

p p: colliding beams
resonance: production
narrow resonance
resonance: decay
spin: resonance
spin: 2
spin: 0
p p: scattering
Z0: pair production
Z0: leptonic decay

References(87)

Figures(0)

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