color glass condensate 1.) saturation problem in hep 2.) evolution equations 3.) basics of gluon...

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Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

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Page 1: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Color Glass Condensate

1.) saturation problem in HEP2.) evolution equations

3.) basics of gluon saturation4.) basics of CGC

Page 2: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Thanks for material to:

Marzia NardiLarry McLerranDima Kharzeev

Martijn RusscherElena Ferreiro

Kazunori Itakura

Page 3: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Experimental puzzle in HEP (I)

Page 4: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Froissart Bound

Page 5: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Questions

Page 6: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Particle Multiplicities in HEP

Page 7: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Picture of particle production

Page 8: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Deep Inelastic Scattering

Page 9: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Deep Inelastic Scattering

Page 10: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

DIS kinematics

Page 11: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

DIS kinematics (cont.)

Page 12: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Deep Inelastic Scattering (cont.)

Page 13: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Structure functions (PDF) of a proton

Page 14: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Data (ZEUS 1994)

Page 15: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

The Gluon ‘blows up’

RHIC

Page 16: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

The gluon ‘blows up’

Page 17: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Gluon saturation

Page 18: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Gluon density in hadrons

Page 19: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

NMC / E665 Shadowing measurements

Page 20: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Structure function and DGLAP

Page 21: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Qualitative description of DGLAP

Page 22: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

DGLAP at small x

Page 23: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Structure function and BFKL

Page 24: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Qualitative description of BFKL

Page 25: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

BFKL details

Page 26: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Visualize BFKL in Bjorken frame

Page 27: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Can BFKL explain the rise in F2 ?

Page 28: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Initial Summary: the small x problem

Page 29: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Motivation for the CGC

Page 30: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Gluon recombination

Page 31: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Gribov-Levin-Ryskin equation

Page 32: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Shadowing via GLR

Page 33: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Saturation region

Page 34: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

A possible phase diagram

Page 35: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Universality in the CGC model

Page 36: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Saturation and Quantum Evolution

Page 37: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

The McLerran-Venugopolan model

Page 38: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Why the Color Glass Condensate ?

Page 39: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

CGC phase diagram

Page 40: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

CGC formalism details (I)

Page 41: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

CGC formalism details (I)

Page 42: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

CGC formalism details (I)

Page 43: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

CGC formalism details (I)

Page 44: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

CGC formalism details (I): Classical YM theory

Page 45: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

CGC formalism details (I):Wilson renormalizaiton

Page 46: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

CGC formalism summary

Page 47: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

A new effective theory

Page 48: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Another phase diagram

Page 49: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Saturation scale

Page 50: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Saturation momentum

Page 51: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Saturation scale (II)

Page 52: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Effective theory solutions

Page 53: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Saturation scale in nuclei

Page 54: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

A time evolution for ‘matter’

Page 55: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Phenomenology at RHIC

Page 56: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Final phase diagram

Page 57: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

Page 58: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

The reach of RHIC

Page 59: Color Glass Condensate 1.) saturation problem in HEP 2.) evolution equations 3.) basics of gluon saturation 4.) basics of CGC

CGC at LHC

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