13.07.2015 Views

Higher Order Moments of Momentum Spectra

Higher Order Moments of Momentum Spectra

Higher Order Moments of Momentum Spectra

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Fragmentation FunctionsD(ξ,Q,Λ) not calculable in pQCDxp pp= =2p QmaxBUT know how to evolve in Q 2⎛ξ = log⎜1⎝x p⎟⎠⎞For e + e -: Q = √sFor DIS: Q is the virtuality <strong>of</strong> the exchanged photon andp is measured in the current region <strong>of</strong> the Breit frame(where p max is Q/2)

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!