Effects of diffraction in pp and pA collisions

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Diffractive excitation is a large fraction of the pp cross section, also at high energies. Diffraction has been described by multi-Regge diagrams, or in the Good-Walker formalism as a result of fluctuations. The two formalisms are, however, just different sides of the same phenomenon. The dipole cascade formalism in impact parameter space is well suited to describe diffractive excitation including effects of saturation. Diffractive excitation is also an important effect in pA scattering, where the Glauber formalism has been used to estimate the number of NN subcollisions and of "wounded" nucleons. Diffractive excitation has here been either neglected or included in a simplified way, not including excitation of target nucleons. In this talk we discuss how these effects can be included with the help of the dipole cascade model DIPSY.


Enheter & grupper

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik
TidskriftEPJ Web of Conferences
StatusPublished - 2017 apr 12
Peer review utfördJa

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