rho^0 Production and Possible Modification in Au+Au and p+p Collisions at sqrt(s_NN) = 200 GeV
| dc.creator | Adams, J. | |
| dc.date | 2003-07-28 | |
| dc.date | 2004-03-08 | |
| dc.date.accessioned | 2026-07-07T11:10:42Z | |
| dc.date.available | 2026-07-07T11:10:42Z | |
| dc.description | We report results on rho(770)^0 -> pi+pi- production at midrapidity in p+p and peripheral Au+Au collisions at sqrt(s_NN) = 200 GeV. This is the first direct measurement of rho(770)^0 -> pi+pi- in heavy-ion collisions. The measured rho^0 peak in the invariant mass distribution is shifted by ~40 MeV/c^2 in minimum bias p+p interactions and ~70 MeV/c^2 in peripheral Au+Au collisions. The rho^0 mass shift is dependent on transverse momentum and multiplicity. The modification of the rho^0 meson mass, width, and shape due to phase space and dynamical effects are discussed. | |
| dc.description | 6 pages, 4 figures, as accepted for Phys. Rev. Lett. The data tables are at http://www.star.bnl.gov/central/publications/pubDetail.php?id=26 | |
| dc.identifier | https://arxiv.org/abs/nucl-ex/0307023 | |
| dc.identifier | http://arxiv.org/abs/nucl-ex/0307023 | |
| dc.identifier | Phys.Rev.Lett.92:092301,2004 | |
| dc.identifier | doi:10.1103/PhysRevLett.92.092301 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/190855 | |
| dc.subject | Nuclear Experiment | |
| dc.title | rho^0 Production and Possible Modification in Au+Au and p+p Collisions at sqrt(s_NN) = 200 GeV | |
| dc.type | text |