TY - JOUR
T1 - Spectral distributions of current correlation functions in baryonic matter
AU - Klingl, F.
AU - Weise, W.
N1 - Funding Information:
* Contributiont o the Festschrifl for Gerry Brown on the occasion of his 70th birthday. Work supported in part by GSI and BMBE
PY - 1996/8/26
Y1 - 1996/8/26
N2 - We evaluate the spectrum of the isovector current-current correlation function in a nuclear medium to leading order in the baryon density. This spectrum enters directly in dilepton production rates. We demonstrate that the natural leading effect caused by the presence of baryonic matter is a significant enhancement of the dilepton rate in the continuum below the ρ meson resonance, extending down to the single pion threshold. We point out the relevance of this result in relation to the enhanced dilepton spectra seen in the CERES experiment at CERN, and to the upcoming HADES project at GSI-SIS.
AB - We evaluate the spectrum of the isovector current-current correlation function in a nuclear medium to leading order in the baryon density. This spectrum enters directly in dilepton production rates. We demonstrate that the natural leading effect caused by the presence of baryonic matter is a significant enhancement of the dilepton rate in the continuum below the ρ meson resonance, extending down to the single pion threshold. We point out the relevance of this result in relation to the enhanced dilepton spectra seen in the CERES experiment at CERN, and to the upcoming HADES project at GSI-SIS.
UR - http://www.scopus.com/inward/record.url?scp=0030602954&partnerID=8YFLogxK
U2 - 10.1016/0375-9474(96)00196-0
DO - 10.1016/0375-9474(96)00196-0
M3 - Article
AN - SCOPUS:0030602954
SN - 0375-9474
VL - 606
SP - 329
EP - 338
JO - Nuclear Physics, Section A
JF - Nuclear Physics, Section A
IS - 1-2
ER -