Rapidity gap survival in central exclusive diffraction: Dynamical mechanisms and uncertainties

Mark Strikman, Christian Weiss

Research output: Contribution to conferencePaper

Abstract

We summarize our understanding of the dynamical mechanisms governing rapidity gap survival in central exclusive diffraction, pp → p + H + p (H = high-mass system), and discuss the uncertainties in present estimates of the survival probability. The main suppression of diffractive scattering is due to inelastic soft spectator interactions at small pp impact parameters and can be described in a mean-field approximation (independent hard and soft interactions). Moderate extra suppression results from fluctuations of the partonic configurations of the colliding protons. At LHC energies absorptive interactions of hard spectator partons associated with the gg → H process reach the black- disk regime and cause substantial additional suppression, pushing the survival probability below 0.01.

Original languageEnglish (US)
Pages495-502
Number of pages8
Publication statusPublished - Jan 1 2009
Event2nd Workshop on the Implications of HERA for LHC Physics, HERA-LHC 2006 - 2008 - Geneva, Switzerland
Duration: May 26 2008May 30 2008

Other

Other2nd Workshop on the Implications of HERA for LHC Physics, HERA-LHC 2006 - 2008
CountrySwitzerland
CityGeneva
Period5/26/085/30/08

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Strikman, M., & Weiss, C. (2009). Rapidity gap survival in central exclusive diffraction: Dynamical mechanisms and uncertainties. 495-502. Paper presented at 2nd Workshop on the Implications of HERA for LHC Physics, HERA-LHC 2006 - 2008, Geneva, Switzerland.