Low-Mass Lepton Pair Production in Pb-Au Collisions at 40 AGeV
| dc.creator | Damjanovic, Sanja | |
| dc.creator | Filimonov, Kirill | |
| dc.date | 2001-11-15 | |
| dc.date.accessioned | 2026-07-07T11:10:40Z | |
| dc.date.available | 2026-07-07T11:10:40Z | |
| dc.description | The CERES/NA45 experiment at the CERN SPS has previously measured $e^{+}e^{-}$ pair production in 160 AGeV Pb-Au collisions. In the mass region m>0.2 GeV/c$^{2}$, an enhancement of $2.7\pm0.4(statist.)\pm0.5(syst.)$ compared to the expectation from known hadronic decay sources was observed. In the 40 AGeV data taken in 1999, an enhancement is again found; a preliminary analysis gives the even larger value of $4.5\pm1.2(statist.)$. The results are compared to theoretical model calculations based on $π^{+}π^{-}$ annihilation with a modified $ρ$-propagator. | |
| dc.description | To appear in the proceedings of International Europhysics Conference on High-Energy Physics (HEP 2001), Budapest, Hungary, 12-18 Jul 2001 | |
| dc.identifier | https://arxiv.org/abs/nucl-ex/0111009 | |
| dc.identifier | http://arxiv.org/abs/nucl-ex/0111009 | |
| dc.identifier | Pramana60:1067-1072,2002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/190843 | |
| dc.subject | Nuclear Experiment | |
| dc.title | Low-Mass Lepton Pair Production in Pb-Au Collisions at 40 AGeV | |
| dc.type | text |