TU Dresden Particles of the Standard Model Sophie Koßagk.
-
Upload
alberta-banks -
Category
Documents
-
view
217 -
download
4
Transcript of TU Dresden Particles of the Standard Model Sophie Koßagk.
Particles of the Standard Model
TU Dresden Particles of the Standard Model Sophie Koßagk
StructureHistorical introductionDefinitionParticle classificationFermions
Quarks Leptons
Gauge bosons, HiggsSummary Sources
TU Dresden Particles of the Standard Model Sophie Koßagk
Historical introductionWhat is the World Made of?
TU Dresden Particles of the Standard Model Sophie Koßagk
Fig.: [1]
Fig. : [2]
Historical introduction1930 Neutrino1931 Positron,
Neutron 1932 1933 1934 1935 1936 1937 Muon1938 1939 1940
TU Dresden Particles of the Standard Model Sophie Koßagk
1945 1946 1947 Pion1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 quantum electrodynamics
(QED) W+, W- Boson
Historical introduction1960 1961 1962 1963 1964 idea of Quarks1965 1966 1967 prediction of Higgs1968 1969 1970 1971 1972 1973 quantum chromodynamics
(QCD)1974
TU Dresden Particles of the Standard Model Sophie Koßagk
Fig. : [3]
Definition The Standard Model of particle physics is a
theory concerning the electromagnetic, weak, and strong nuclear interactions, which mediate the dynamics of the known subatomic particles.
TU Dresden Particles of the Standard Model Sophie Koßagk
Particle classification
TU Dresden Particles of the Standard Model Sophie Koßagk
half-integer spin (1/2, 3/2, …)
integer spin (1, 2, 3, …)
Fig. : [4]
Fermions
TU Dresden Particles of the Standard Model Sophie Koßagk
Quarksfractional electric
chargeColour chargeColour confinementBaryons (three
quarks) and Mesons (two quarks) have an integer electric charge and they are colour neutral
TU Dresden Particles of the Standard Model Sophie Koßagk
Fig.: [5]
Fig. : [6]
Leptons
do not carry colour chargeAre not influence by strong
forceElectron, muon, tau are
single negative chargedNeutrinos has no charge
TU Dresden Particles of the Standard Model Sophie Koßagk
Fundamental interactionGauge bosons
TU Dresden Particles of the Standard Model Sophie Koßagk
Fig. : [7]
Gauge bosons, Higgs
TU Dresden Particles of the Standard Model Sophie Koßagk
Gravitation
Weak Electro-magnetic
Strong
Carried by
(Graviton) W+, W-, Z0 bosons
Photon Gluons
Acts on All Quarks and Leptons
Quarks and charged
Leptons and W+, W-
Quarks and Gluons
intensity
6 10∙ -39 10-6 1/137 1
Range [m]
Infinite 10-18 Infinite 10-15
Fig. : [8]
Higgs
SummaryType Generatio
nAntiparticle
Colours Total
Quarks 2 3 Pair 3 36
Leptons 2 3 Pair - 12
Gluons 1 1 Own 8 8
W 1 1 Pair - 2
Z 1 1 Own - 1
Photon 1 1 Own - 1
Higgs 1 1 Own - 1
Total 61
TU Dresden Particles of the Standard Model Sophie Koßagk
Sources[1]–[5], [7] particleadventure.org
[6]http://en.wikipedia.org/wiki/Color_confinement
[8] http://vimeo.com/41038445
http://hyperphysics.phy-astr.gsu.edu/hbase/ hframe.html
en.wikipedia.orgTU Dresden Particles of the Standard Model Sophie
Koßagk
Thank you for listening
TU Dresden Particles of the Standard Model Sophie Koßagk
Sources[1]–[5], [7] particleadventure.org
[6]http://en.wikipedia.org/wiki/Color_confinement
[8] http://vimeo.com/41038445
http://hyperphysics.phy-astr.gsu.edu/hbase/ hframe.html
en.wikipedia.orgTU Dresden Particles of the Standard Model Sophie
Koßagk