Search for Odderon-Induced Contributions to Exclusive pi^0 Photoproduction at HERA
| dc.creator | H1 Collaboration | |
| dc.creator | Adloff, C. | |
| dc.date | 2002-06-28 | |
| dc.date.accessioned | 2026-07-07T11:46:36Z | |
| dc.date.available | 2026-07-07T11:46:36Z | |
| dc.description | A search for contributions to the reaction ep-> e pi^0 N^* from photon-Odderon fusion in the photoproduction regime at HERA is reported, at an average photon-proton centre-of-mass energy <W> = 215 GeV. The measurement proceeds via detection of the pi^0 decay photons, a leading neutron from the N^* decay, and the scattered electron. No pi^0 signal is observed and an upper limit on the cross section for the photon-Odderon fusion process of sigma(gamma p -> pi^0 N^*) < 49 nb at the 95% confidence level is derived, integrated over the experimentally accessible range of the squared four-momentum transfer at the nucleon vertex 0.02 < |t| < 0.3 Gev^2. This excludes a recent prediction from a calculation based on a non-perturbative QCD model of a photon-Odderon fusion cross section above 200 nb. | |
| dc.description | 13 pages, 1 table and 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0206073 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0206073 | |
| dc.identifier | Phys.Lett.B544:35-43,2002 | |
| dc.identifier | doi:10.1016/S0370-2693(02)02479-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202282 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Search for Odderon-Induced Contributions to Exclusive pi^0 Photoproduction at HERA | |
| dc.type | text |