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EnglishThe diffractive dissociation of photons with virtuality Q(2) < 0.7 GeV2, gamma *p --> Xp, has been studied in ep interactions with the ZEUS detector at HERA. For a subsample of the data, the scattered proton was measured with the Leading Proton Spectrometer. The dependence of the diffractive cross section on the photon-proton centre-of-mass energy is used to determine the Pomeron intercept. The diffractive structure function F-2(D) is measured and its dependence on Q(2) studied. At the small values of Q(2) considered, F-2(D) exhibits a strong Q(2) dependence, a result at variance with what has been observed at higher Q(2) values.
The diffractive dissociation of photons with virtuality Q(2) < 0.7 GeV2, gamma *p --> Xp, has been studied in ep interactions with the ZEUS detector at HERA. For a subsample of the data, the scattered proton was measured with the Leading Proton Spectrometer. The dependence of the diffractive cross section on the photon-proton centre-of-mass energy is used to determine the Pomeron intercept. The diffractive structure function F-2(D) is measured and its dependence on Q(2) studied. At the small values of Q(2) considered, F-2(D) exhibits a strong Q(2) dependence, a result at variance with what has been observed at higher Q(2) values.
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| Titolo: | F-2(D) at low Q(2) at HERA |
| Autori: | |
| Data di pubblicazione: | 2001 |
| Rivista: | |
| Citazione: | F-2(D) at low Q(2) at HERA / Capua, Marcella. - In: NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS. - ISSN 0920-5632. - 99A:a(2001), pp. 148-151. ((Intervento presentato al convegno 1st International Workshop on Diffraction in High-Energy Physics tenutosi a Cetraro nel SEP 02-07, 2000. |
| Abstract: | The diffractive dissociation of photons with virtuality Q(2) < 0.7 GeV2, gamma *p --> Xp, has been studied in ep interactions with the ZEUS detector at HERA. For a subsample of the data, the scattered proton was measured with the Leading Proton Spectrometer. The dependence of the diffractive cross section on the photon-proton centre-of-mass energy is used to determine the Pomeron intercept. The diffractive structure function F-2(D) is measured and its dependence on Q(2) studied. At the small values of Q(2) considered, F-2(D) exhibits a strong Q(2) dependence, a result at variance with what has been observed at higher Q(2) values. |
| Handle: | http://hdl.handle.net/20.500.11770/145350 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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