firstname = "Carlos" lastname = "Pajares" email = "pajares@fpaxp1.usc.es" affiliation = "University Santiago de Compostela" city = "Santiago de Compostela" country = "Spain" visa = "yes" passportname = "Carlos Pajares Vales" birthday = "23-07 1945" citizenship = "spanish" passportnumber = "AAC986308" passportissued = "20-01-2011" passportexpire = "20-01-2021" workplace = "Physics Departement,University Santiago de Compostela" workaddress = "Physics Dept, Campus Sur,University Santiago de Compostela" visadates = "29-09 2013 to 6-10-2013" transfer = "yes" talktitle = "Geometrical scaling in pp,pA,AA and saturation of gluons" section = "A - Particle physics" talkabstract = "It is shown that defining a suitable gluon saturation momentum the pt distribution of pp,pA and AA collisions for any energy, and centrality depens only on the ratio Pt/Qs,for pt less than Qs.For pt larger than Qs there is a departure of the scaling as it is expected from jet quenching considerations. The integrated spectrum gives a fraction of the hard multiplicity decreasing with energy and centrality,contrary what it could be expected" comments = "" submit = 0