Angular variation of hard back-to-back hadron suppression in heavy-ion collisions
| dc.creator | Renk, Thorsten | |
| dc.date | 2008-03-03 | |
| dc.date | 2008-07-23 | |
| dc.date.accessioned | 2026-07-07T11:48:50Z | |
| dc.date.available | 2026-07-07T11:48:50Z | |
| dc.description | The basic idea of jet tomography is to infer information about the density evolution of the medium created in heavy-ion (A-A) collisions by studying the suppression of hard probes in an A-A environment as compared to the baseline process known from p-p collisions. The suppression of back-to-back correlations in heavy-ion collisions allows, due to a different geometrical bias, a view into the medium which is qualitatively different from the one offered by single hadron suppression. A control parameter for the suppression corresponding to a systematic variation of in-medium pathlengths and density can be obtained by studying collisions at finite impact parameter b. A systematic variation of pathlength can then be introduced by studying the suppression pattern as a function of the angle phi with the reaction plane. Using a 3-d hydrodynamical evolution model for the medium and a Monte-Carlo model which has been shown to successfully reproduce the measured suppression of back-to-back correlations in central collisions of Au-Au at 200 AGeV, we compute the suppression as a function of phi for b of 2.4 fm. 4.5 fm, 6.3 fm and 7.5 fm. Given that this involves variations in both control parameters b and phi a comparison with data should eventually allow to place strong constraints on the combination of energy loss model and medium evolution model. | |
| dc.description | 8 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/0803.0218 | |
| dc.identifier | http://arxiv.org/abs/0803.0218 | |
| dc.identifier | Phys.Rev.C78:034904,2008 | |
| dc.identifier | doi:10.1103/PhysRevC.78.034904 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/203020 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Angular variation of hard back-to-back hadron suppression in heavy-ion collisions | |
| dc.type | text |