Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Critical point search from an extended parameter space of lattice QCD at
  finite temperature and density   Aiming to understand the phase structure of lattice QCD at nonzero
temperature and density, we study the phase transitions of QCD in an extended
parameter space, where the number of flavor and quark masses are considered as
parameters. Performing simulations of 2 flavor QCD and using the reweighting
method, we investigate (2+Nf) flavor QCD at finite density, where two light
flavors and Nf massive flavors exist. Calculating probability distribution
functions, we determine the critical surface terminating first order phase
transitions in the parameter space of the light quark mass, the heavy quark
mass and the chemical potential. Through the study of the many flavor system,
we discuss the phase structure of QCD at finite density.

9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat