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 sqrt(s)=8 TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7 fb−119.7 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.
Titolo: | Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in l+l- b b-bar final states |
Autori: | |
Data di pubblicazione: | 2015 |
Rivista: | |
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 sqrt(s)=8 TeV collected with the CMS detector, corresponding to an integrated luminosity of 19.7 fb−119.7 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. |
Handle: | http://hdl.handle.net/11368/2843715 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.physletb.2015.07.010 |
Appare nelle tipologie: | 1.1 Articolo in Rivista |
File in questo prodotto:
File | Descrizione | Tipologia | Licenza | |
---|---|---|---|---|
1-s2.0-S0370269315005201-main.pdf | Documento in Versione Editoriale | ![]() | Open Access Visualizza/Apri |