Published September 2, 2015 | Version Published + Submitted
Journal Article Open

Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in ℓ+ℓ−bb final states

Abstract

Results are reported on a search for decays of a pseudoscalar A boson into a Z boson and a light scalar h boson, where the Z boson decays into a pair of oppositely-charged electrons or muons, and the h boson decays into bb‾. The search is based on data from proton–proton collisions at a center-of-mass energy √s=8 TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7 fb^(−1). The h boson is assumed to be the standard model-like Higgs boson with a mass of 125 GeV. With no evidence for signal, upper limits are obtained on the product of the production cross section and the branching fraction of the A boson in the Zh channel. Results are also interpreted in the context of two Higgs doublet models.

Additional Information

© 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. Received 18 April 2015; Received in revised form 25 June 2015; Accepted 7 July 2015; Available online 9 July 2015. Editor: M. Doser. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MOST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, ERC IUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TÜBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie program and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A.P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS program of the Foundation for Polish Science, co-financed from European Union, Regional Development Fund; the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; and the National Priorities Research Program by Qatar National Research Fund.

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Published - 1-s2.0-S0370269315005201-main.pdf

Submitted - 1504.04710v2.pdf

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Additional details

Identifiers

Eprint ID
60255
Resolver ID
CaltechAUTHORS:20150915-130324106

Related works

Funding

BMWFW (Austria)
FWF (Austria)
FNRS (Belgium)
FWO (Belgium)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
MES (Bulgaria)
CERN (China)
CAS (China)
MoST (China)
NSFC (China)
COLCIENCIAS (Colombia)
MSES (Croatia)
CSF (Croatia)
RPF (Cyprus)
MoER (Estonia)
ERC IUT (Estonia)
ERDF (Estonia)
Academy of Finland
MEC (Finland)
HIP (Finland)
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
CNRS/IN2P3 (France)
Bundesministerium für Bildung und Forschung (BMBF)
Deutsche Forschungsgemeinschaft (DFG)
HGF (Germany)
GSRT (Greece)
OTKA (Hungary)
NIH (Hungary)
DAE (India)
DST (India)
IPM (Iran)
Science Foundation, Ireland
INFN (Italy)
MSIP (Korea)
NRF (Korea)
LAS (Lithuania)
MOE (Malaysia)
UM (Malaysia)
CINVESTAV (Mexico)
CONACyT (Mexico)
SEP (Mexico)
UASLP-FAI (Mexico)
MBIE (New Zealand)
PAEC (Pakistan)
MSHE (Poland)
NSC (Poland)
Fundação para a Ciência e a Tecnologia (FCT)
JINR (Dubna)
MON (Russia)
RosAtom (Russia)
RAS (Russia)
RFBR (Russia)
MESTD (Serbia)
SEIDI (Spain)
CPAN (Spain)
Swiss Funding Agencies (Switzerland)
MST (Taipei)
ThEPCenter (Thailand)
IPST (Thailand)
STAR (Thailand)
NSTDA (Thailand)
TUBITAK (Turkey)
TAEK (Turkey)
NASU (Ukraine)
SFFR (Ukraine)
Science and Technology Facilities Council (STFC)
Department of Energy (DOE)
NSF
Marie-Curie program
European Research Council (ERC)
European Union EPLANET
Leventis Foundation
Alfred P. Sloan Foundation
Alexander von Humboldt Foundation
Belgian Federal Science Policy Office
Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
Council of Science and Industrial Research (India)
Foundation for Polish Science HOMING PLUS programme
European Union Regional Development Fund
Compagnia di San Paolo (Torino)
Consorzio per la Fisica (Trieste)
Ministero dell'Istruzione, dell'Università e della Ricerca (MIUR)
20108T4XTM
Thalis programme
Aristeia programme
European Union European Social Fund
Greek NSRF
Qatar National Research Fund National Priorities Research Program
SCOAP3

Dates

Created
2015-09-15
Created from EPrint's datestamp field
Updated
2023-10-24
Created from EPrint's last_modified field

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