Total and diffractive cross sections in enhanced Pomeron schemeстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:For the first time, a systematic analysis of the high energy behavior of total and diffractive
proton-proton cross sections is performed within the Reggeon Field Theory framework, based on
the resummation of all significant contributions of enhanced Pomeron diagrams to all orders with
respect to the triple-Pomeron coupling. The importance of different classes of enhanced graphs is
investigated and it is demonstrated that absorptive corrections due to “net”-like enhanced diagrams
and due to Pomeron “loops” are both significant and none of those classes can be neglected at high
energies. A comparison with other approaches based on partial resummations of enhanced diagrams
is performed. In particular, important differences are found concerning the predicted high energy
behavior of total and single high mass diffraction proton-proton cross sections, with our values of
σpp tot
at √s = 14 TeV being some 25 40% higher and with the energy rise of σHM SD
saturating well
÷below the LHC energy. The main causes for those differences are analyzed and explained.