nLab
scalar meson

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

A type of meson which (in Wigner classification) is a Lorentz group scalar or pseudoscalar is called a (pseudo-)scalar meson, for short. This is in contrast to (pseudo-)vector mesons, which instead are (pseudo-)vector representations

Examples

Examples of pseudo-scalar mesons:

Examples of scalar mesons:

References

(See also the references at meson.)

  • Eef van Beveren, George Rupp, Scalar mesons as simple quark+antiquark states, AIP Conf. Proc. 508 (1999) 310-317, Hadron Physics, Sept. 1999, Coimbra, Portugal (arXiv:hep-ph/9912332)

Last revised on May 26, 2020 at 04:42:46. See the history of this page for a list of all contributions to it.