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13 papers · 2 filters
Dimuon transverse momentum spectra as a tool to characterize the emission region in heavy-ion collisions
Thorsten Renk, Jorg Ruppert
Previous dilepton measurements in heavy-ion collisions have mainly focused on invariant mass spectra to clarify in-medium changes of vector meson properties. However, a dimuon is c…
Mass Independent Textures and Symmetry
C. S. Lam
A mass-independent texture is a set of linear relations of the fermion mass-matrix elements which imposes no constraint on the fermionic masses nor the Majorana phases. Magic and 2…
Intermediate mass dileptons in relativistic nuclear collisions
Charles Gale, Simon Turbide
We consider the production of lepton pairs with intermediate invariant masses, in relativistic nuclear collisions. Thermal sources are briefly discussed, as well as a newer product…
Leading Order Calculation of Electric Conductivity in Hot Quantum Electrodynamics from Diagrammatic Methods
J. -S. Gagnon, S. Jeon
Using diagrammatic methods, we show how the Ward identity can be used to constrain the ladder kernel in transport coefficient calculations. More specifically, we use the Ward ident…
The thermal nature of high p_T photons in high energy nuclear collisions
Charles Gale
We discuss the recent status of some penetrating electromagnetic probes of relativistic nuclear collisions, and the information contained in their measurement. We concentrate in tu…
Shear viscosity in weakly coupled Super Yang-Mills theory compared to QCD
Simon C. Huot, Sangyong Jeon, Guy D. Moore
We compute the shear viscosity of weakly coupled N=4 supersymmetric Yang-Mills (SYM) theory. Our result for [eta/s], the viscosity to entropy-density ratio, is many times smaller t…