Water ( H 2 O ) oxygen atom ( O ) proton ( p ) electrons ( e ) neutron ( n ) 3 quarks What the matters are made out of ? 3 quarks

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Presentation transcript:

water ( H 2 O ) oxygen atom ( O ) proton ( p ) electrons ( e ) neutron ( n ) 3 quarks What the matters are made out of ? 3 quarks (or _each.pdf or _each.pptx)

uu -Single quark never come out. -They have fractional charges: up quarks down quarks - Strong forces between quarks. u d neutron pion Quarks are very strange !! proton

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 Gravitons Strong > > Weak >>> Gravity Electro- magnetic These forces are carried by

Mass Elements of the Standard Model

S. Weinberg A. Salam 1979 Proposed Electro-weak theory (1967) R. Brout & F. Englert, P. Higgs Found BEH mechanism (1964) Y. Nambu 2008 Introduced Spontaneous Symmetry Breakdown (1959) QCD of strong interactions (1973) Standard Model Higgs field  must exist to generate particle masses. CERN T-shirt 2013

Glashow-Weinberg-Salam Model Potential Energy by Higgs field Mass of electron  Higgs field free motion Mass of Higgs Vacuum expectation value Higgs-electron coupling h= wave function of Higgs particle Symmetry Breakdown We are here

u Z H H H H H H H H H H H H H H H H H  u Z Sea of the Higgs field (weak force sensitive) 

Sta 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 a.3 forces can unify at high energy. b.It avoids quantum divergence of Higgs particle mass. c.Some SUSY particles can be dark matters.