Putting non Point-like Behavior of Fundamental Particles to Test
| dc.creator | Dymnikova, Irina | |
| dc.creator | Sakharov, Alexander | |
| dc.creator | Ulbricht, Juergen | |
| dc.creator | Zhao, Jiawei | |
| dc.date | 2001-11-23 | |
| dc.date | 2003-03-24 | |
| dc.date.accessioned | 2026-07-07T03:45:55Z | |
| dc.date.available | 2026-07-07T03:45:55Z | |
| dc.description | We review the experimental limits on those hypothetical interactions where the fundamental particles could exhibit non point-like behavior. In particular we have focused on the QED reaction measuring the differential cross sections for the process $ \EEGG $ at energies around 91 GeV and 209 GeV with data collected from the L3 detector from 1991 to 2001. With a global fit L3 set lower limits at $ 95 % $ CL on a contact interaction energy scale parameter $Λ> 1.6 $ TeV, which restricts the characteristic QED size of the interaction region to $ R_{e} < 1.2 \times 10^{-17} $ cm. All the interaction regions are found to be smaller than the Compton wavelength of the fundamental particles. This constraint we use to estimate a lower limit on the internal density of particle-like structure with the de Sitter vacuum core. Some applications of obtained limits to the string and quantum gravity scales are also discussed. | |
| dc.description | 18 pages, 6 figures, Completely updated version | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0111302 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0111302 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/41097 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Nuclear Experiment | |
| dc.title | Putting non Point-like Behavior of Fundamental Particles to Test | |
| dc.type | text |