Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fluctuating vector mesons in analytically continued FRG flow equations   In this work we study contributions due to vector and axial-vector meson
fluctuations to their in-medium spectral functions in an effective low-energy
theory inspired by the gauged linear sigma model. In particular, we show how to
describe these fluctuations in the effective theory by massive (axial-)vector
fields in agreement with the known structure of analogous single-particle or
resonance contributions to the corresponding conserved currents. The vector and
axial-vector meson spectral functions are then computed by numerically solving
the analytically continued functional renormalization group (aFRG) flow
equations for their retarded two-point functions at finite temperature and
density in the effective theory. We identify the new contributions that arise
due to the (axial-)vector meson fluctuations, and assess their influence on
possible signatures of a QCD critical endpoint and the restoration of chiral
symmetry in thermal dilepton spectra.

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The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg