CERN-TH.95-237 k-FACTORIZATION ∗)
نویسنده
چکیده
I review the k-factorization method to combine the high-energy behaviour in QCD with the renormalization group. Resummation formulas for coefficient functions and anomalous dimensions are derived, and their applications to small-x scaling violations in structure functions are briefly discussed. ∗) Talk delivered at the VIth Blois Workshop “Frontiers in Strong Interactions”, June 20-24, 1995. +) On sabbatical leave of absence from Dipartimento di Fisica, Università di Firenze, and INFN, Sezione di Firenze, Italy. CERN-TH.95-237 August 1995 high-energy behaviour in QCD with the and anomalous dimensions structure functions are
منابع مشابه
CERN{TH.6871/93 Factorization and Jet Clustering Algorithms for Deep Inelastic Scattering
Jet clustering algorithms for nal states in deep inelastic lepton scattering are discussed from a theoretical viewpoint. The importance of factorization and the special rôle of the Breit frame of reference are stressed. Predictions of jet cross sections in factorizable JADEand k?-type algorithms are presented. CERN{TH.6871/93 May 1993 Talk at 3rd UK Phenomenology Initiative: HERA The New Fronti...
متن کاملep - p h / 95 07 32 1 v 1 1 7 Ju l 1 99 5 CERN - TH / 95 - 198 hep - ph / 9507321 MOMENTUM CONSERVATION AT SMALL x
We discuss how momentum conservation is implemented in perturbative computations based on expansions of anomalous dimensions appropriate at small x. We show that for any given choice of F 2 coefficient functions there always exists a factorization scheme where the gluon is defined in such a way that momentum is conserved at next to leading order.
متن کاملar X iv : h ep - p h / 95 06 25 9 v 1 7 J un 1 99 5 CERN – TH / 95 – 83 hep - ph / 9506259 May 1995 MULTIPLE HARD
متن کامل
ar X iv : h ep - p h / 95 08 38 1 v 1 2 8 A ug 1 99 5 CERN - TH / 95 - 233 RADIATIVE CORRECTIONS TO e γ SCATTERING
We investigate the effects of photon radiation on deep-inelastic eγ scattering. Depending on the set of variables chosen, we find appreciable effects in the kinematic region accessible at LEP2. Convenient analytic results for O(α) corrected differential cross sections are presented. CERN-TH/95-233 August 1995 E-mail address: [email protected] E-mail address: [email protected]
متن کاملTesting factorization of charmonium production
Within the NRQCD factorization approach the production of heavy quarkonia can be calculated in perturbative QCD in terms of a few production-processindependent NRQCD matrix elements. We test the universality of these longdistance matrix elements by comparing their values as determined from charmonium production at pp, ep, and ee colliders, and in Z, Υ, and B decays. a Heisenberg Fellow. CERN–TH...
متن کامل