High Energy Physics - Experiment
[Submitted on 9 Sep 2014 (v1), last revised 17 Oct 2014 (this version, v2)]
Title:Recent Results on the Higgs Boson Properties in the $H\to ZZ \to 4\ell$ decay channel at CMS
View PDFAbstract:The latest results on the measurement of the properties of the new boson with mass around 125 GeV are reported. The analysis uses pp collision data recorded by the CMS detector at the LHC, corresponding to integrated luminosities of 5.1 $fb^{-1}$ at $\sqrt{s}$ = 7 TeV and 19.6 $fb^{-1}$ at $\sqrt{s}$ = 8 TeV. The boson is observed in the $H \to ZZ \to 4\ell$ channel ($\ell = e, \mu$) and its mass is measured, giving the most precise result ever achieved. Moreover, the first experimental constraint on Higgs total width using $H \to ZZ \to 4\ell$ events is presented, setting an upper limit of 33 MeV at 95\% confidence level (42 MeV expected). The spin-parity of the boson is studied and the pure scalar hypothesis is found to be consistent with the observation, when compared to the other spin-parity hypotheses. No other significant Standard Model Higgs-like excess is found in the search and upper limits at 95\% condence level exclude the range 129.5 -832.0 GeV.
Submission history
From: Linda Finco [view email][v1] Tue, 9 Sep 2014 09:13:46 UTC (339 KB)
[v2] Fri, 17 Oct 2014 13:20:49 UTC (339 KB)
References & Citations
Bibliographic and Citation Tools
Bibliographic Explorer (What is the Explorer?)
Litmaps (What is Litmaps?)
scite Smart Citations (What are Smart Citations?)
Code, Data and Media Associated with this Article
CatalyzeX Code Finder for Papers (What is CatalyzeX?)
DagsHub (What is DagsHub?)
Gotit.pub (What is GotitPub?)
Papers with Code (What is Papers with Code?)
ScienceCast (What is ScienceCast?)
Demos
Recommenders and Search Tools
Influence Flower (What are Influence Flowers?)
Connected Papers (What is Connected Papers?)
CORE Recommender (What is CORE?)
arXivLabs: experimental projects with community collaborators
arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.
Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.
Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.