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ATLAS_Collaboration_Search_for_Higgs_Boson_pair_production_etc.pdf (356 kB)

Search for Higgs Boson Pair Production in the ??bb¯ final state using pp collision data at sv=8??TeV from the ATLAS detector

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posted on 2023-06-08, 21:41 authored by Alessandro CerriAlessandro Cerri, C Chavez Barajas, Antonella De SantoAntonella De Santo, Z J Grout, C T Potter, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, Y Shehu, Mark SuttonMark Sutton, Iacopo Vivarelli, Others (ATLAS collaboration)
Searches are performed for resonant and nonresonant Higgs boson pair production in the ??bb¯ final state using 20??fb-1 of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the ATLAS detector at the CERN Large Hadron Collider. A 95% confidence level upper limit on the cross section times branching ratio of nonresonant production is set at 2.2 pb, while the expected limit is 1.0 pb. The difference derives from a modest excess of events, corresponding to 2.4 standard deviations from the background-only hypothesis. The limit observed in the search for a narrow X?hh resonance ranges between 0.7 and 3.5 pb as a function of the resonance mass.

Funding

Consolidated Grant; G0927; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/K001329/1

History

Publication status

  • Published

File Version

  • Published version

Journal

Physical Review Letters (PRL)

ISSN

1079-7114

Publisher

American Physical Society

Issue

8

Volume

114

Department affiliated with

  • Physics and Astronomy Publications

Notes

Part of the ATLAS collaboration

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2015-07-17

First Open Access (FOA) Date

2015-07-17

First Compliant Deposit (FCD) Date

2015-07-17

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