nLab a1-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

The a 1a_1-meson is the light meson which (in the Wigner classification) is the Lorentz spin group pseudo-vector representation as well as the isospin vector representation.

This is the chiral partner of the rho-meson.

References

  • Stefan Leupold, Markus Wagner, Chiral Partners in a Chirally Broken World, International Journal of Modern Physics A Vol. 24, No. 02n03, pp. 229-236 (2009) (arXiv:0807.2389)

  • A. E. Dorokhova, N. I. Kochelevba. A. P. Martynenkoc. F. A. Martynenkoc. A. E. Radzhabovb, The contribution of axial-vector mesons to hyperfine structure of muonic hydrogen, Physics Letters B Volume 776, 10 January 2018, Pages 105-110 Physics Letters B (doi:10.1016/j.physletb.2017.11.027)

Last revised on May 8, 2020 at 14:53:15. See the history of this page for a list of all contributions to it.