Measurement of elastic electroproduction of phi mesons at HERA
| dc.creator | H1 Collaboration | |
| dc.creator | Adloff, C. | |
| dc.date | 2000-05-05 | |
| dc.date.accessioned | 2026-07-07T11:46:31Z | |
| dc.date.available | 2026-07-07T11:46:31Z | |
| dc.description | The elastic electroproduction of phi mesons is studied at HERA with the H1 detector for photon virtualities 1 < Q^2 < 15 GeV^2 and hadronic centre of mass energies 40 < W < 130 GeV. The Q^2 and t dependences of the cross section are extracted (t being the square of the four-momentum transfer to the target proton). When plotted as function of (Q^2 + M_V^2) and scaled by the appropriate SU(5) quark charge factor, the phi meson cross section agrees within errors with the cross sections of the vector mesons V = rho, omega and J/psi. A detailed analysis is performed of the phi meson polarisation state and the ratio of the production cross sections for longitudinally and transversely polarised phi mesons is determined. A small but significant violation of s-channel helicity conservation (SCHC) is observed. | |
| dc.description | 17 pages, 7 figures and 2 tables | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0005010 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0005010 | |
| dc.identifier | Phys.Lett.B483:360-372,2000 | |
| dc.identifier | doi:10.1016/S0370-2693(00)00613-4 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202253 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of elastic electroproduction of phi mesons at HERA | |
| dc.type | text |