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SUMMARY:Collinear splitting\, parton evolution and the strange-quark asymm
 etry of the nucleon.
DTSTART;VALUE=DATE-TIME:20050921T130000Z
DTEND;VALUE=DATE-TIME:20050921T140000Z
DTSTAMP;VALUE=DATE-TIME:20261113T055443Z
UID:indico-event-1445@indico.ific.uv.es
DESCRIPTION:We consider the collinear limit of QCD amplitudes at one-loop 
 order\, and their factorization properties directly in colour space. These
  results apply to the multiple collinear limit of an arbitrary number of Q
 CD partons\, and are a basic ingredient in many higher-order computations 
 at present and future colliders. In particular\, we discuss the triple col
 linear limit and its relation to flavour asymmetries in the QCD evolution 
 of parton densities at three loops. As a phenomenological consequence of t
 his new effect\, and of the fact that the nucleon has non-vanishing quark 
 valence densities\, we study the perturbative generation of a strange--ant
 istrange asymmetry $s(x)-\\bar{s}(x)$ in the nucleon's sea\, and its relat
 ion to the NuTeV anomaly.\n\nhttps://indico.ific.uv.es/event/1445/
LOCATION:Edf. Institutos de Investigación Sala Seminarios IFIC
URL:https://indico.ific.uv.es/event/1445/
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