Observation of Events at Very High Q^2 in ep Collisions at HERA
| dc.creator | Adloff, C. | |
| dc.date | 1997-02-23 | |
| dc.date.accessioned | 2026-07-07T11:46:45Z | |
| dc.date.available | 2026-07-07T11:46:45Z | |
| dc.description | Measurements of ep scattering with squared 4-momentum transfer Q^2 up to 35000 GeV^2 are compared with the expectation of the standard deep-inelastic model of lepton-nucleon scattering (DIS). For Q^2 > 15000 GeV^2, N_{obs} =12 neutral current candidate events are observed where the expectation is N_DIS = 4.71 \pm 0.76 events. In the same Q^2 range, N_{obs} =4 charged current candidates are observed where the expectation is N_{DIS} = 1.77 \pm 0.87 events. The probability P(N \geq N_{obs}) that the DIS model signal N fluctuates to N \geq N_{obs} in a random set of experiments is 6 10^{-3} for neutral current and 0.14 for charged current. The difference in the observed and expected number of Neutral Current events is mostly due to events at large masses M = sqrt{xs} in which the positron is backscattered at large y = Q^2/M^2. | |
| dc.description | 30 pages, latex, 8 Figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9702012 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9702012 | |
| dc.identifier | Z.Phys.C74:191-206,1997 | |
| dc.identifier | doi:10.1007/s002880050383 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202335 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Observation of Events at Very High Q^2 in ep Collisions at HERA | |
| dc.type | text |