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Roman Pasechnik

Senior lecturer

Typical working day..

Hard hadronic diffraction is not hard

Author

  • Boris Kopeliovich
  • Roman Pasechnik
  • Irina Potashnikova

Summary, in English

Hadronic diffractive processes characterized by a hard scale (hard diffraction) contain a nontrivial interplay of hard and soft, nonperturbative interactions, which breaks down factorization of short and long distances. On the contrary to the expectations based on the factorization hypothesis, assuming that hard diffraction is a higher twist, these processes should be classified as a leading twist. We overview various implications of this important observation for diffractive radiation of Abelian (Drell-Yan, gauge bosons, Higgs boson) and non-Abelian (heavy flavors) particles, as well as direct coalescence into the Higgs boson of the nonperturbative intrinsic heavy flavor component of the hadronic wave function.

Department/s

  • Department of Astronomy and Theoretical Physics

Publishing year

2016-07-01

Language

English

Publication/Series

International Journal of Modern Physics E

Volume

25

Issue

7

Document type

Journal article

Publisher

World Scientific Publishing

Topic

  • Subatomic Physics

Keywords

  • Diffractive Drell-Yan process
  • diffractive factorization breaking
  • Higgsstrahlung
  • intrinsic heavy flavor

Status

Published

ISBN/ISSN/Other

  • ISSN: 0218-3013