ar X iv : 0 71 1 . 05 21 v 1 [ he p - ph ] 4 N ov 2 00 7 CC DIS at α 3 s in Mellin - N and Bjorken - x spaces
نویسنده
چکیده
Third-order results for the structure functions of charged-current deep-inelastic scattering are discussed. New results for 11’th Mellin moment for F ν p−ν̄ p 2,L structure functions and 12’th moment for F ν p−ν̄ p 3 are presented as well as corresponding higher Mellin moments of differences between the respective crossing-even and -odd coefficient functions. Approximations in Bjorken-x space for these differences obtained with lowest five moments as well as consistency of new results with these approximations are discussed. The 1/Nc suppression of the differences is shown and the correction to the Paschos-Wolfenstein relation is discussed.
منابع مشابه
ar X iv : 0 71 1 . 32 82 v 1 [ he p - ph ] 2 1 N ov 2 00 7 Study of Pure Annihilation Decays B d , s → D 0 D 0
With heavy quark limit and hierarchy approximation λ QCD ≪ m D ≪ m B , we analyze the
متن کاملar X iv : 0 71 0 . 49 47 v 2 [ he p - ph ] 2 3 N ov 2 00 7 International scoping study of a future Neutrino Factory and super - beam facility
متن کامل
ar X iv : h ep - p h / 02 11 29 6 v 1 1 9 N ov 2 00 2 1 First results for three - loop deep - inelastic structure functions in QCD
As a first step towards the complete calculation of deep-inelastic scattering at third order of massless pertur-bative QCD, we have computed the fermionic (n f) contributions to the flavour non-singlet structure functions in unpolarized electromagnetic scattering. We briefly discuss the approach chosen for this calculation, the problems we encountered and the status of the project. We show the ...
متن کاملar X iv : h ep - p h / 03 11 18 0 v 1 1 4 N ov 2 00 3
The longitudinal structure function FL is directly sensitive to the gluon content of the proton and is therefore crucial to the understanding of the proton structure and to the determination of the gluon distribution, in particular at low momentum transfer Q and low Bjorken x. For high inelasticity y the FL contribution to the reduced deep inelastic scattering (DIS) cross section becomes signif...
متن کاملar X iv : 0 81 1 . 24 38 v 1 [ he p - ph ] 1 7 N ov 2 00 8 Theory Summary : International Symposium on Multiparticle Dynamics 2008
I summarize the theory talks presented at the International Symposium on Multiparticle Dynamics 2008.
متن کامل