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 language | English (US) |
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| Pages | 495-502 |
| Number of pages | 8 |
| State | Published - Jan 1 2009 |
| Event | 2nd Workshop on the Implications of HERA for LHC Physics, HERA-LHC 2006 - 2008 - Geneva, Switzerland Duration: May 26 2008 → May 30 2008 |
Other
| Other | 2nd Workshop on the Implications of HERA for LHC Physics, HERA-LHC 2006 - 2008 |
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| Country/Territory | Switzerland |
| City | Geneva |
| Period | 5/26/08 → 5/30/08 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics