Introduction to QCD slides - P.Hoyer.pdf - High Energy Physics Group

Recommendations

Info

Paul Hoyer Mugla 2010 Quantum Chromodynamics (1972) The QCD Lagrangian defines the interactions of quarks and gluons: LQCD = � f Looks like QED! But the gauge symmetry is SU(3) of color (Greenberg, 1964) ψ → Uψ U ⊂ SU(3) All quarks u,d,s,c,b,t have the same strong coupling g ¯ψf (i/∂ − g /A − mf )ψf − 1 4 F µν Fµν αs = g2 4π Note: In QED the abelian U(1) symmetry allows different electric charges e for different particles It remains a mystery why: ψ = ⎛ ⎝ q q q ⎞ ⎠ eu = − 2 3 ee |ep + ee|/e < 1.0 · 10 −21 20
The Standard Model A. Pich - CERN Summer Lectures 2008 Paul Hoyer Mugla 2010 # ! " S. Bethke 2006 ! $% & ' ()**+, - ()((*( ! " ! $% & ' ()**+! - ()((!. # 2004 21
Page 1 and 2: Paul Hoyer Mugla 2010 Introduction
Page 3 and 4: Paul Hoyer Mugla 2010 The Discovery
Page 5 and 6: Paul Hoyer Mugla 2010 The Pion as a
Page 7 and 8: Matter field: Paul Hoyer Mugla 2010
Page 9 and 10: a a Fundamental Representation: ! F
Page 12 and 13: Mesons Paul Hoyer Mugla 2010 Quark
Page 14 and 15: Quarks are for real: Pointlike scat
Page 22 and 23: Paul Hoyer Mugla 2010 Asymptotic Fr
Page 24 and 25: Paul Hoyer Mugla 2010 Puzzles of QC
Page 26 and 27: Instantaneous Coulomb interaction P
Page 28 and 29: Binding energy [meV] 0 -1000 -3000
Page 30 and 31: Paul Hoyer Mugla 2010 Origin of the
Page 32 and 33: √+%&'( !"#$$%$&'()#*%+,-. !" # !"
Page 34 and 35: Paul Hoyer Mugla 2010 34 P. Skands
Page 36 and 37: Paul Hoyer Mugla 2010 The accuracy
Page 38: dσ dX Factorization Theorem Factor
Page 41 and 42: ξ = 1 + = log E + p � � m 2 +
Page 43 and 44: :02 PM e + e - Paul Hoyer Mugla 201
Page 45 and 46: No exclusive amplitudes for charged
Page 47 and 48: Unitarity (white): σtot(s) = � P
Page 49 and 50: Paul Hoyer Mugla 2010 Optical Theor
Page 51 and 52: e�nition Paul Hoyer Mugla 2010 In
Page 53: Cross σσ Sections at NNLO X+1 (R)
Page 56 and 57: Paul Hoyer Mugla 2010 QCD is very s
Page 58 and 59: Measurement of quark and gluon colo
Page 60 and 61: Paul Hoyer Mugla 2010 The CDF Detec
Page 62 and 63: Paul Hoyer Mugla 2010 pp - → jet

Introduction to QCD slides - P.Hoyer.pdf - High Energy Physics Group

Create successful ePaper yourself

Delete template?

Save as template?