English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We conjecture that a 125 GeV resonance $\zeta^0$ with $J^{PC}=0^{-+}$composed of a quark-antiquark state may have been observed at the LHC. Thedecay modes of this pseudoscalar particle are determined using thenon-relativistic quark model. The leading order partial decay widths for thedecays of the pseudoscalar quarkonium resonance $\zeta^0\rightarrow\gamma\gamma$ and $\zeta^0\rightarrow gg$ are compared to the standard modelHiggs particle decays $H^0\rightarrow \gamma\gamma$ and $H^0\rightarrow gg$. Anexperimental analysis at the LHC of the observed production cross sections forthe $\zeta^0$ and the Higgs particle could distinguish between a heavyquarkonium $\zeta^0$ particle and a light Higgs particle at 125 GeV.

Has A 125 GeV Pseudoscalar Resonance Been Observed at the LHC?