Antonio Pich. IFIC, CSIC Univ. Valencia.
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1 Antonio Pich IFIC, CSIC Univ. Valncia Th Standard Modl A. Pich - CERN Summr Lcturs 2005
2 1. Constitunts & Intractions 2. Quarks 3. Gaug Invarianc 4. Quantum Chromodynamics 5. Elctrowak Unification 6. Symmtry Braking 7. Elctrowak Phnomnology 8. Flavour Dynamics Th Standard Modl A. Pich - CERN Summr Lcturs 2005
3 Tabl of Elmntary Frmions Intractions: Gaug Bosons Chargd Lptons Nutrinos Th Standard Modl A. Pich - CERN Summr Lcturs 2005
4 Th Standard Modl A. Pich - CERN Summr Lcturs 2005
5 Mattr - Nuclus n p n p n n n np n p p n pp p n - - Elctron - Atom Molculs Proton Quarks Nutron Th Standard Modl A. Pich - CERN Summr Lcturs 2005
6 Th Standard Modl A. Pich - CERN Summr Lcturs 2005
7 Th Standard Modl A. Pich - CERN Summr Lcturs 2005
8 Th Standard Modl A. Pich - CERN Summr Lcturs 2005
9 Th Standard Modl A. Pich - CERN Summr Lcturs 2005
10 (β Dcay) C N n p+ + " p n+ + " +? Q m = Q = = m 0 0 Nutrino ; Anti-Nutrino pp ( pn) Wak Intraction W ±, Z 0 M M 100 m W Z p Th Standard Modl A. Pich - CERN Summr Lcturs 2005
11 Quarks Lptons Bosons up down lctron nutrino photon µ gluon charm strang muon nutrino µ Z 0 W ± τ top bauty tau nutrino τ Higgs Th Standard Modl A. Pich - CERN Summr Lcturs 2005
12 QM + Rlativity Antiparticls (Dirac) u u d d + E = m c 2 Th Standard Modl A. Pich - CERN Summr Lcturs 2005
13 Th Standard Modl A. Pich - CERN Summr Lcturs 2005
14 Quantum Mchanics ( ) + Spcial Rlativity ( c) Quantum Fild Thory STANDARD THEORY: 1) Elctricity + Magntism + Optics (light): Quantum Elctrodynamics (QED) 2) QED + Wak Intraction: Elctrowak Thory γ, Z, W SU(2) L ± γ U(1) Y 3) Strong Intraction: 8 Gluons Quantum Chromodynamics (QCD) Th Standard Modl A. Pich - CERN Summr Lcturs 2005
15 OPEN QUESTIONS: Th Higgs Boson Gran Unification (Mass scals) (Elctrowak + Strong) SuprSymmtry Gravitation: SuprGravity, Strings,... Th Standard Modl A. Pich - CERN Summr Lcturs 2005
16 Do not hav Strong Intractions Spin ½ Sn as Fr Particls 17 Pointlik r < ( fw 10 cm) Family Structur: µ τ,, µ τ L L L m = 0.5 MV m = 106 MV m = 1777 MV y 210 s 310 s m < 3V m < 0.2MV m < 18MV µ τ τ > τ = τ = µ τ µ τ Why 3?? Th Standard Modl A. Pich - CERN Summr Lcturs 2005
17 , γ Z µ + µ + + Z Flavour Consrving g Q l γ γ Sam intraction for both lpton hlicitis NC Univrsality: Z Diffrnt coupling to and Lft-handd nutrinos only µ γ ; Z µ ± ( Q = Q = Q ; Q = 0) µ τ g = g = g g Z Zµµ Zττ Z l R l L. 3 Familis with light (narly masslss) nutrinos Th Standard Modl A. Pich - CERN Summr Lcturs 2005
18 HOW MANY NEUTRINOS? σ ( Z hadrons) N = Γ( Z invisibl) Γ( Z ) i i Th = ± Γ( Z invisibl) Γ( Z all) Γ( Z visibl) Th Standard Modl A. Pich - CERN Summr Lcturs 2005
19 Th havir lptons µ τ and ar unstabl µ - µ µ µ τ τ W W, µ, d, µ, u Th Standard Modl A. Pich - CERN Summr Lcturs 2005
20 µ µ µ µ µ µ µ w w + w + µ Lft-handd lptons (Right-handd antilptons) l, l l +, l J p Th Standard Modl A. Pich - CERN Summr Lcturs 2005
21 YES l L P l R NO C C l + L l + R NO P YES P and C in Wak Intractions CP still a good symmtry Th Standard Modl A. Pich - CERN Summr Lcturs 2005
22 µ µ µ µ w µ w + w + µ µ µ Lft-handd lptons (Right-handd antilptons) l, l J p l +, l Doublt partnrs: l l X µ X ; X X µ µ Univrsal Strngth q << M W gw gw Tl ( l l l ) G M q M W W F Γ( l l ) G m 2 5 l l F l Γ( τ )/ Γ( µ ) ( m / m ) τ µ τ µ Th Standard Modl A. Pich - CERN Summr Lcturs
23 Wakly Intracting Particls Among most abundant particls in th Univrs Each scond pass through your body from th SUN pp d +,... Th Standard Modl A. Pich - CERN Summr Lcturs 2005
24 Each scond pass through your body from th SUN pp d +,... Thy also com from blow! Th Standard Modl A. Pich - CERN Summr Lcturs 2005
25 NEUTRINOS ar producd in th atmosphr by COSMIC RAYS px π X π µ µ µ ; µ Producd by Nuclar Ractors n p Producd at CERN Th Standard Modl A. A. Pich - - CERN Summr Lcturs 2005
26 Masurd < Prdictd SNO CC: ES: NC: x x + d p+ p+ + + x + d p+ n + x ( x=, µ, τ ) Nutrino Oscillations µ, τ Th Standard Modl A. Pich - CERN Summr Lcturs 2005
27 Sudbury Nutrino Obsrvatory Th Standard Modl A. Pich - CERN Summr Lcturs 2005
28 CERN Nutrinos To Gran Sasso Th Standard Modl A. Pich - CERN Summr Lcturs 2005
29 Quarks Lptons Bosons up down lctron nutrino photon µ gluon charm strang muon nutrino µ Z 0 W ± τ top bauty tau nutrino τ Higgs Th Standard Modl A. Pich - CERN Summr Lcturs 2005
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