| Title: | INVESTIGATION OF POMERON- AND ODDERON INDUCED PHOTOPRODUCTION OF MESONS DECAYING TO PURE MULTIPHOTON FINAL STATES AT HERA |
| DOI No: | 10.1142/9789812777157_0036 |
| Source: | PHOTON 2001 (pp 182-185)
|
| Author(s): | THOMAS BERNDT
Supported by the Bundesministerium Für Bildung, Wissenschaft, Forschung Und Thecnologie, Germany, Under Contract Number 7HD27P.
KIP, Schröderstr. 90, 69120 Heidelberg, Germany
for the H1 Collaboration |
| Abstract: | Cross section measurements made at HERA for the reactions γp → ωp and γp → ωπ0X, and on searches for the reactions γp → π0 N*, γp → f2(1270)X, and  , where N* denotes an excited nucleon state, are presented. The mean γp centre-of-mass energies were 〈W〉 = 200 GeV and 215 GeV, respectively. Cross sections for the Pomeron-mediated reactions were determined in agreement with previous measurements and phenomenological expectations. In contrast, Odderon induced processes have not been observed; upper limits on cross sections are below predictions from a non-perturbative QCD model. |
| Full Text: | View full text in PDF format (203KB) |
| TOC: | Back to Table of Contents |
|
|
