Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resonance Parameters of the rho-Meson from Lattice QCD   We perform a non-perturbative lattice calculation of the P-wave pion-pion
scattering phase in the rho-meson decay channel using two flavors of maximally
twisted mass fermions at pion masses ranging from 480 MeV to 290 MeV. Making
use of finite-size methods, we evaluate the pion-pion scattering phase in the
center-of-mass frame and two moving frames. Applying an effective range
formula, we find a good description of our results for the scattering phase as
a function of the energy covering the resonance region. This allows us to
extract the rho-meson mass and decay width and to study their quark mass
dependence.

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The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
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The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-ex
2
The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ