1 / 27

Quarks, partones y QCD.

Quarks, partones y QCD. Rodolfo Sassot Departamento de Fisica, FCEyN, UBA. Porqu é QCD ?. Motivaci ón estadística: antisimetrización f.o. SU(3) f. SU(3) c. Motivaci ón fenomenológica: (e + e - → hadrones) / (e + e - → μ + μ - ).

cili
Download Presentation

Quarks, partones y QCD.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Quarks, partones y QCD. Rodolfo Sassot Departamento de Fisica, FCEyN, UBA.

  2. Porqué QCD? Motivación estadística: antisimetrización f.o. SU(3)f SU(3)c Motivación fenomenológica: (e+e-→ hadrones) / (e+e- → μ+μ- ) “La Motivación” : dinámica interacciones fuertes dinámica de SU(3)c

  3. Modelo de partones: 2 cuadri-impulsos salientes: 8 conservación E-P: -4 mass shell x2: -2 simetría CM: -1 1 variable independiente 1967: Bjorken “scaling” 1969: SLAC 1969: Feynman “partones libres” modelo de partones 1969: Callan-Gross “spin 1/2”

  4. Modelo de partones: “puntual” “densidad de probabillidad” “define” lo que es “los partones no son los quarks SU(3)”

  5. Modelo de partones: 2 variables:

  6. Modelo de partones: 2 variables:

  7. Modelo de partones: SLAC 1970 HERA 2000

  8. Stanford Linear Accelerator Center (SLAC)

  9. Large Hadron Collider(LHC) p p @ 14 TeV 0.999999 c

  10. ATLAS: 1800 físicos, 34 países

  11. DGLAP mantra: LO, NLO, … ‘naïve’ ‘LO’

  12. DGLAP mantra: LO, NLO, …

  13. DGLAP mantra: LO, NLO, … ‘naïve’ ‘LO’ ‘NLO’ ‘add a gluon’

  14. high-x low-x charged/neutral

  15. TEVATRON @ FNAL jets in p-pbar

More Related