Transparencies pdf - Desy

More documents

Recommendations

Info

2 ! b P(b) / fm -1 2 ! b P(b) / fm -1 2 1 0 0 1 2 3 2 1 0 b / fm P 2 P 4 P in s 1/2 = 14000 GeV 0 1 2 3 b / fm P 2 P 4 P in s 1/2 = 500 GeV 2 ! b P(b) / fm -1 2 1 0 0 1 2 3 b / fm P 2 P 4 P in s 1/2 = 1800 GeV Difference between b-distributions for minimal bias and dijet, four jet events strongly increases with increase of incident energy. Solid lines: b–distributions for the dijet trigger, P2(b), with q⊥ = 25 GeV , as obtained from the dipole–type gluon ρ–profile. Long–dashed line: b–distribution for double dijet events, P4(b). Short–dashed line: b–distribution for generic inelastic collisions. 40 M.Strikman 40
New phenomena when going to LHC energies What happens when a parton goes through strong gluon fields? It will be resolved to its constituents if interaction is strong. To estimate the transverse momenta of the resolved system use a second parton as a regularization - consider the propagation of a small dipole of transverse size d, which interacts in LO pQCD with cross section: σinel = π2 3 F2 d 2 αs(λ/d 2 )xGT(x.λ/d 2 ) F 2 F 2 Casimir operator of color SU(3) F2 (quark) =4/3 (gluon)=3 41 41
Page 1 and 2: HERA impact for QCD dynamics at LHC
Page 3 and 4: Outline • Imaging a fast nucleon.
Page 5 and 6: Image of nucleon at different resol
Page 7 and 8: z-x cut of the fast nucleon the rat
Page 9: Implication - hard processes corres
Page 12: )'
Page 16 and 17: Binkley et al .9:%);3*&#55:?3:4#@&3
Page 19 and 20: 2! " F g (x, ", Q 2 ) / fm -1 2 1 0
Page 22 and 23: Experimentally one measures the rat
Page 24 and 25: In order to analyze the strengths o
Page 26 and 27: Consider first “small dipole - ha
Page 28 and 29: Impact parameter distribution in
Page 30 and 31: Can use hard diffraction to check p
Page 33 and 34: (P gg ⊗ g) / g 1.4 1.2 1 0.8 0.6
Page 35 and 36: | Γ pp (b) | 2 Study of the elasti
Page 37 and 38: 2 ! b P in (b) / fm -1 1 0.8 0.6 0.
Page 39: Impact parameter distribution for a
Page 43: To estimate the maximum transverse
Page 46 and 47: pp→h+X Z 1 dN = ∑ dxx fa(x,Q N
Page 48 and 49: Cosmic rays of ultrahigh energies:
Page 50 and 51: P H Y S I C A L R E V I E W L E T T
Page 54: | Γ pp (b) | 2 Warning - it is not

Transparencies pdf - Desy

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?