Change search
ReferencesLink to record
Permanent link

Direct link
Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in pp collisions at s =8 TeV with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
Show others and affiliations
Number of Authors: 2873
2016 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 93, no 7, 072007Article in journal (Refereed) PublishedText
Abstract [en]

This article reports on a search for dark matter pair production in association with a Higgs boson decaying to a pair of bottom quarks, using data from 20.3 fb-1 of pp collisions at a center-of-mass energy of 8 TeV collected by the ATLAS detector at the LHC. The decay of the Higgs boson is reconstructed as a high-momentum bb system with either a pair of small-radius jets, or a single large-radius jet with substructure. The observed data are found to be consistent with the expected Standard Model backgrounds. Model-independent upper limits are placed on the visible cross sections for events with a Higgs boson decaying into bb and large missing transverse momentum with thresholds ranging from 150 to 400 GeV. Results are interpreted using a simplified model with a Z′ gauge boson decaying into different Higgs bosons predicted in a two-Higgs-doublet model, of which the heavy pseudoscalar Higgs decays into a pair of dark matter particles. Exclusion limits are also presented for the mass scales of various effective field theory operators that describe the interaction between dark matter particles and the Higgs boson.

Place, publisher, year, edition, pages
American Physical Society , 2016. Vol. 93, no 7, 072007
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-187720DOI: 10.1103/PhysRevD.93.072007ISI: 000374547100001ScopusID: 2-s2.0-84964317336OAI: oai:DiVA.org:kth-187720DiVA: diva2:931314
Note

QC 20160527

Available from: 2016-05-27 Created: 2016-05-27 Last updated: 2016-06-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Lund-Jensen, BengtSidebo, EdvinStrandberg, Jonas
By organisation
Particle and Astroparticle Physics
In the same journal
Physical Review D
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 33 hits
ReferencesLink to record
Permanent link

Direct link