dc.contributor.author | Koenig, W. | en |
dc.contributor.author | Berdermann, E. | en |
dc.contributor.author | Bosch, F. | en |
dc.contributor.author | Huchler, S. | en |
dc.contributor.author | Kienle, P. | en |
dc.contributor.author | Kozhuharov, C. | en |
dc.contributor.author | Schröter, A. | en |
dc.contributor.author | Schuhbeck, S. | en |
dc.contributor.author | Tsertos, Haralambos | en |
dc.creator | Koenig, W. | en |
dc.creator | Berdermann, E. | en |
dc.creator | Bosch, F. | en |
dc.creator | Huchler, S. | en |
dc.creator | Kienle, P. | en |
dc.creator | Kozhuharov, C. | en |
dc.creator | Schröter, A. | en |
dc.creator | Schuhbeck, S. | en |
dc.creator | Tsertos, Haralambos | en |
dc.date.accessioned | 2019-12-02T15:31:31Z | |
dc.date.available | 2019-12-02T15:31:31Z | |
dc.date.issued | 1989 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/58783 | |
dc.description.abstract | First results on the energy and angular dependence of the (e+e-) pairs, emitted from U + U and U + Pb collisions at a beam energy of 5.9 MeV/u, are presented. The (e+e-) coincidence measurements were carried out utilizing a double-Orange ß-spectrometer, which allows to determine the momentum vectors of the positrons and electrons and, hence, their opening angle θe+e-. The (e+e-) sum-energy spectrum obtained for θe+e-=(180±20)°, which is equivalent to an invariant mass spectrum, indicates multiple-line structures in the energy range between 500 keV and 950 keV for both collision systems. The most pronounced line appears at a sum energy of ∼ 810 keV, corresponding to an invariant mass of ∼ 1.83 MeV/c2. No evidence for line structures was found for angles 40° ≤ θe+e- ≤ 170°. The energies of the lines are consistent with our previous observations in the single p positron spectra. © 1989. | en |
dc.source | Physics Letters B | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0002587358&doi=10.1016%2f0370-2693%2889%2990466-8&partnerID=40&md5=62edac8043b034c04bbed77c302589ff | |
dc.title | On the momentum correlation of (e+e-) pairs observed in U + U and U + Pb collisions | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1016/0370-2693(89)90466-8 | |
dc.description.volume | 218 | |
dc.description.issue | 1 | |
dc.description.startingpage | 12 | |
dc.description.endingpage | 16 | |
dc.author.faculty | Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Φυσικής / Department of Physics | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :102</p> | en |
dc.source.abbreviation | Phys Lett Sect B Nucl Elem Part High-Energy Phys | en |
dc.contributor.orcid | Tsertos, Haralambos [0000-0001-5966-343X] | |
dc.gnosis.orcid | 0000-0001-5966-343X | |