# Search for diboson resonances in hadronic final states in 139 fb⁻¹ of pp collisions at \sqrts = 13 TeV with the ATLAS detector

Franconi, Laura; Miucci, Antonio; Merlassino, Claudia; Haug, Sigve; Weber, Michael; Anders, John Kenneth; Beck, Hans Peter; Ereditato, Antonio; Weston, Thomas Daniel (2019). Search for diboson resonances in hadronic final states in 139 fb⁻¹ of pp collisions at \sqrts = 13 TeV with the ATLAS detector. Journal of High Energy Physics, 2019(9) Springer 10.1007/JHEP09(2019)091

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Narrow resonances decaying into W W, W Z or ZZ boson pairs are searched for in 139 fb−1 of proton-proton collision data at a centre-of-mass energy of s√ = 13 TeV recorded with the ATLAS detector at the Large Hadron Collider from 2015 to 2018. The diboson system is reconstructed using pairs of high transverse momentum, large-radius jets. These jets are built from a combination of calorimeter- and tracker-inputs compatible with the hadronic decay of a boosted W or Z boson, using jet mass and substructure properties. The search is performed for diboson resonances with masses greater than 1.3 TeV. No significant deviations from the background expectations are observed. Exclusion limits at the 95% confidence level are set on the production cross-section times branching ratio into dibosons for resonances in a range of theories beyond the Standard Model, with the highest excluded mass of a new gauge boson at 3.8 TeV in the context of mass-degenerate resonances that couple predominantly to gauge bosons.

#### Item Type:

Journal Article (Original Article)

#### Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)

#### UniBE Contributor:

Franconi, Laura; Miucci, Antonio; Merlassino, Claudia; Haug, Sigve; Weber, Michael; Anders, John Kenneth; Beck, Hans Peter; Ereditato, Antonio and Weston, Thomas Daniel

#### Subjects:

500 Science > 530 Physics

1029-8479

Springer

English

#### Submitter:

BORIS Import LHEP

#### Date Deposited:

12 Jun 2020 11:50

14 Jun 2020 02:52

#### Publisher DOI:

10.1007/JHEP09(2019)091

Kollaboration - Es sind nur die Berner AutorInnen namentlich erwaehnt; The ATLAS collaboration

#### BORIS DOI:

10.7892/boris.143570

#### URI:

https://boris.unibe.ch/id/eprint/143570