nLab
upsilon-meson

Contents

Context

Fields and quanta

field (physics)

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

hadron (bound states of the above quarks)

solitons

minimally extended supersymmetric standard model

superpartners

bosinos:

sfermions:

dark matter candidates

Exotica

auxiliary fields

Contents

Idea

The upsilon-meson ϒ\Upsilon is a heavy meson which the the bottom-form of quarkonium: a bound state of a bottom quark with its antiparticle, .

References

See also:

On Dalitz decays of upsilon-mesons:

  • Li-Min Gu, Hai-Bo Li, Xin-Xin Ma, Mao-Zhi Yang, Study of the electromagnetic Dalitz decays ψ(ϒ)η c(η b)l +l \psi(\Upsilon) \to \eta_c(\eta_b) l^+ l^-, Phys. Rev. D 100, 016018 (2019) (arXiv:1904.06085)

Created on May 2, 2020 at 04:40:30. See the history of this page for a list of all contributions to it.