Published papers on CCFM

Forward evolution SMALLX Monte Carlo and backward evolution CASCADE Monte Carlo (all at parton level)

• comparison of kinematics in the parton cascade for bbar photoproduction CASCADE with SMALLX
• F2: comparison CASCADE with SMALLX
• Fwd jets H1: comparison CASCADE with SMALLX
• Fwd jets ZEUS: x section comparison CASCADE with SMALLX
• Fwd jets ZEUS: Et^2/Q^2 comparison CASCADE with SMALLX

• Backward evolution CASCADE (at hadron level)
• J/psi photoproduction with CCFM(CASCADE)

Plots obtained with SMALLX but with full splitting function:
 

• Full splitting: P=alphas(1/z+1/(1-z)-2+z(1-z)) * \Delta_ns, Qg=1.4, xG(x)=x**a *(1-x)**4 with a = -0.1

Plots obtained with SMALLX modified with a "new" non Sudakov form factor:
 

• Some pictures of forward jet in the Lund triangle.

Others to come soon.....

Discussions:

• non- sudakov and cons. constraint

• Discussion on 7th Dec 1999 ( L. Loennblad, B. Andersson, G.Gustafson, N. Zotov, L. Joensson, H. Jung)

• origin of kin. constraint - do we need to apply it to CCFM ?
• effect of kin.constraint in new LDC (fwd. jet)
• effect of changing from alpha_s < 0.6 to fixed cutoff k_t>Q0

Comparison with old version Q0=1.1, scale alphas kt2 of incoming gluon with scale pt2 in ME with different Q0 (max alphas at scale Q0)
• new and final F2 (SMALLX) with Qg=1.4=cutoff in alphas
• new and final forward jet (H1) with SMALLX with Qg=1.4=cutoff in alphas
• new and final forward jet (ZEUS) with SMALLX with Qg=1.4=cutoff in alphas
• problem of momentum sum rule for unintegrated gluon distribution (norm by fit to F2 ??)
• check Caldwell plot with SMALLX/ GRVHO/CASCADE/LDC
• z spectra with and w/o kin. constraint in new LDC (fwd.jet)
• z spectra with and w/o kin. constraint in SMALLX (fwd.jet) (done)
• effect of final state emissions in new LDC looking at Et flow

• Things done until Feb. 2000
• F2, fwd jets with LDC
• z spectra: old LDC/new LDC SMALLX
• D* in photoprod. with CCFM/different BFKL parametrisations
• J/psi in photoprod. with CCFM/different BFKL parametrisations
• D* in DIS with CCFM/different BFKL parametrisations
• bb in photoprod with CCFM/different BFKL parametrisations
• F2^cc with CCFM(SMALLX)/different BFKL parametrisations
• F2^cc with different off shell matrix elements

Best reached by email, address: hannes.Jung@desy.de