Rapidity gaps and jets as a new-physics signature in very-high-energy hadron-hadron collisions
Abstract
In hadron-hadron collisions, production of Higgs bosons and other color-singlet systems can occur via fusion of electroweak bosons, occasionally leaving a ``rapidity gap'' in the underlying-event structure. This observation, due to Dokshitzer, Khoze, and Troyan, is studied to see whether it serves as a signature for detection of the Higgs bosons, etc. We find it is a very strong signature at subprocess c.m. energies in excess of a few TeV. The most serious problem with this strategy is the estimation of the fraction of events containing the rapidity gap; most of the time the gap is filled by soft interactions of spectator degrees of freedom. We also study this question and estimate this ``survival probability of the rapidity gap'' to be of order 5%, with an uncertainty of a factor 3. Ways of testing this estimate and further discussion of the underlying hard-diffraction physics are presented.
- Publication:
-
Physical Review D
- Pub Date:
- January 1993
- DOI:
- 10.1103/PhysRevD.47.101
- Bibcode:
- 1993PhRvD..47..101B
- Keywords:
-
- 13.85.Hd;
- 12.15.Ji;
- 13.87.Fh;
- 14.80.Gt;
- Inelastic scattering: many-particle final states;
- Applications of electroweak models to specific processes;
- Fragmentation into hadrons