nLab charmonium

Contents

Context

Fields and quanta

fields and particles in particle physics

and in the standard model of particle physics:

force field gauge bosons

scalar bosons

matter field fermions (spinors, Dirac fields)

flavors of fundamental fermions in the
standard model of particle physics:
generation of fermions1st generation2nd generation3d generation
quarks (qq)
up-typeup quark (uu)charm quark (cc)top quark (tt)
down-typedown quark (dd)strange quark (ss)bottom quark (bb)
leptons
chargedelectronmuontauon
neutralelectron neutrinomuon neutrinotau neutrino
bound states:
mesonslight mesons:
pion (udu d)
ρ-meson (udu d)
ω-meson (udu d)
f1-meson
a1-meson
strange-mesons:
ϕ-meson (ss¯s \bar s),
kaon, K*-meson (usu s, dsd s)
eta-meson (uu+dd+ssu u + d d + s s)

charmed heavy mesons:
D-meson (uc u c, dcd c, scs c)
J/ψ-meson (cc¯c \bar c)
bottom heavy mesons:
B-meson (qbq b)
ϒ-meson (bb¯b \bar b)
baryonsnucleons:
proton (uud)(u u d)
neutron (udd)(u d d)

(also: antiparticles)

effective particles

hadrons (bound states of the above quarks)

solitons

in grand unified theory

minimally extended supersymmetric standard model

superpartners

bosinos:

sfermions:

dark matter candidates

Exotica

auxiliary fields

Contents

Idea

In quantum hadrodynamics, charmonium J/ψJ/\psi is the charm-form of quarkonium: a meson which is a bound state of a charm quark and its antiparticle.

References

  • An-Ping Chen, Yan-Qing Ma, Hong Zhang, A short theoretical review of charmonium production (arXiv:2109.04028)

See also

On the Dalitz decay of charmonium:

  • Study of the Dalitz decay J/ψe +e ηJ/\psi \to e^+e^- \eta, Phys. Rev. D 99, 012006 (2019) (arXiv:1810.03091)

Discussion via AdS/QCD:

  • Miguel Angel Martin Contreras, Saulo Diles, Alfredo Vega, Heavy quarkonia spectroscopy at zero and finite temperature in bottom-up AdS/QCD (arXiv:2101.06212)

Observation of a charmonium decay products interpreted as originating from a fully charmed tetraquark:

reviewed in

Last revised on September 12, 2021 at 16:52:05. See the history of this page for a list of all contributions to it.