w ater ( H 2 O )

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What the matters are made out of ?. electrons e . proton p . w ater H 2 O . 3 quarks. o xygen atom O . neutron n . 3 quarks. http :// atlas.kek.jp/public/HiggsCERNOpenDays_A4.pdf (or _each.pdf or _each.pptx). d. Quarks are very strange !!. u. u. u. - PowerPoint PPT Presentation

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waterH2O

oxygen atomO proton p electronse

neutron n 3 quarksWhat the matters are made out of ? 3 quarks

http://atlas.kek.jp/public/HiggsCERNOpenDays_A4.pdf (or _each.pdf or _each.pptx)1uuSingle quark never come out.

They have fractional charges:

up quarksdown quarks

- Strong forces between quarks.ud

neutronpionQuarks are very strange !!proton

2

There are 4 forces in Nature Light, atom, crystal, radio, TV, phone, car, rain, thunder,..Bind quarks and making nucleus

Sun/star energy, radio activities..Falling apples,planet motions, satellite.Gluons Photons W, Z bosons GravitonsStrong > > Weak >>> GravityElectro-magneticThese forces are carried by3

Mass

Elements of the Standard Model 4S. WeinbergA. Salam

1979Proposed Electro-weak theory (1967)

R. Brout & F. Englert , P. HiggsFound BEH mechanism (1964)

Y. Nambu

2008Introduced Spontaneous Symmetry Breakdown (1959)QCD of strong interactions (1973)

Standard ModelHiggs field f must exist to generate particle masses.CERN T-shirt

20135Glashow-Weinberg-Salam Model

Potential Energy by Higgs field Mass of electronF=Higgs fieldfree motionMass of HiggsVacuum expectation valueHiggs-electron coupling

h= wave function of Higgs particle

Symmetry BreakdownWe are here6uZHHHHHHHHHHHHHHHHHSpeed of light

guZ

Sea of the Higgs field(weak force sensitive)cold universe

ghot universe7Sta

Standard Model Super Symmetric Model

SUSY particles may exist ?SUSY = symmetry between Bosons and Fermions.Spins of SUSY particles differ from those of SM.If SUSY particles exist at ~1 TeV, then

3 forces can unify at high energy.

It avoids quantum divergence of Higgs particle mass.

Some SUSY particles can be dark matters.

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