TY  - JOUR
A1  - Speranza, Enrico
A1  - Jaiswal, Amaresh
A1  - Friman, Bengt
T1  - Virtual photon polarization and dilepton anisotropy in relativistic nucleus–nucleus collisions
T2  - Physics Letters B
N2  - The polarization of virtual photons produced in relativistic nucleus–nucleus collisions provides information on the conditions in the emitting medium. In a hydrodynamic framework, the resulting angular anisotropy of the dilepton final state depends on the flow as well as on the transverse momentum and invariant mass of the photon. We illustrate these effects in dilepton production from quark–antiquark annihilation in the QGP phase and π+π− annihilation in the hadronic phase for a static medium in global equilibrium and for a longitudinally expanding system.
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54783
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-547834
SN  - 1873-2445
SN  - 0370-2693
VL  - 782.2018
SP  - 395
EP  - 400
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  -