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
journal contribution
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
1079-7114Publisher
American Physical SocietyExternal DOI
Issue
8Volume
114Department affiliated with
- Physics and Astronomy Publications
Notes
Part of the ATLAS collaborationFull text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2015-07-17First Open Access (FOA) Date
2015-07-17First Compliant Deposit (FCD) Date
2015-07-17Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC