Meny

Javascript is not activated in your browser. This website needs javascript activated to work properly.
Du är här

Exclusive final states in diffractive excitation

Författare:
Publiceringsår: 2012
Språk: Engelska
Publikation/Tidskrift/Serie: Journal of High Energy Physics
Dokumenttyp: Artikel

Sammanfattning

In this paper we describe a formalism for generating exclusive final states in diffractive excitation, based on the optical analogy where diffraction is fully determined by the absorption into inelastic channels. The formalism is based on the Good--Walker formalism for diffractive excitation, and it is assumed that the virtual parton cascades represent the diffractive eigenstates defined by a definite absorption amplitude. We emphasize that, although diffractive excitation is basically a quantum-mechanical phenomenon with strong interference effects, it is possible to calculate the different interfering components to the amplitude in an event generator, add them and thus calculate the reaction cross section for exclusive diffractive final states. The formalism is implemented in the DIPSY event generator, introducing no tunable parameters beyond what has been determined previously in studies of non-diffractive events. Some early results from DIS and proton-proton collisions are presented, and compared to experimental data.

Disputation

Nyckelord

  • Physics and Astronomy
  • Diffraction
  • Small-x physics
  • Saturation
  • Dipole Model
  • DIS

Övriga

Submitted

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen