Emergence of jet dominance inγpinteractions at fixed-target energies
| Autor: | G. P. Thomas, G. Morrow, M. D. Corcoran, H. R. Gustafson, P. Birmingham, C. Halli, P. H. Kasper, Yasar Onel, John Michael Marraffino, J. W. Waters, D. Alton, N. Akchurin, W. L. Davis, J. McPherson, D.L. Naples, Don Lincoln, M. M. Traynor, H. Holmgren, Q. Zhu, Michael S. Webster, G. S. Mutchler, M. J. Longo, C. C. Chang |
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| Rok vydání: | 1997 |
| Předmět: | |
| Zdroj: | Physical Review D. 56:R5301-R5305 |
| ISSN: | 1089-4918 0556-2821 |
| Popis: | In Fermilab experiment E683 we have used a large solid angle calorimeter to study the production of hadronic events with large transverse energy in $\ensuremath{\gamma}p$ and $\ensuremath{\pi}p$ collisions at center-of-mass energies from 20 to 25 GeV. We observe a sudden shift in $\ensuremath{\gamma}p$ event topology with increasing transverse energy, indicative of the emergence of jet dominance. This is the first observation of such a shift in event topology in fixed-target interactions. $\ensuremath{\pi}p$ interactions in the same kinematic region and under identical triggering conditions exhibit only a slight shift in event topology. |
| Databáze: | OpenAIRE |
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