The eta ( η ) and eta prime meson ( η′ ) are isosinglet mesons made of a mixture of up, down and strange quarks and their antiquarks. The charmed eta meson...

Sigma baryon Xi baryon Omega baryon Mesons Pion Rho meson Eta and eta prime mesons Bottom eta meson Phi meson J/psi meson Omega meson Upsilon meson Kaon...

ETA, an acronym for Euskadi Ta Askatasuna ("Basque Homeland and Liberty" or "Basque Country and Freedom"), was an armed Basque nationalist and far-left...

ξ ) ( 1 + η n η ( ξ ) ) . {\displaystyle n_{\eta }^{\prime }(\xi )=-\beta n_{\eta }(\xi )(1+\eta n_{\eta }(\xi )).} In the zero temperature limit: n η...

The QCD vacuum is the quantum vacuum state of quantum chromodynamics (QCD). It is an example of a non-perturbative vacuum state, characterized by non-vanishing...

the lightest particle containing a bottom and anti-bottom quark. Eta and eta prime mesons, a similar particle with light quarks. Quarkonium, the general...

Pi Prime was re-established Theta chapter before 1874, probably in 1870 according to Eaton. This chapter was previously Alpha Prime and Eta Prime. Reestablished...

proton-antiproton annihilation, and include the pion (π), kaon (K), eta (η), and eta prime (η′) particles, whose masses are known with great precision. Among...

in the center are their own anti-particle. The chargeless, strangeless eta prime meson was originally classified by itself as a singlet: η′ Under the quark...

Sigma baryon Xi baryon Omega baryon Mesons Pion Rho meson Eta and eta prime mesons Bottom eta meson Phi meson J/psi meson Omega meson Upsilon meson Kaon...