Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: $\Lambda/{\bar \Lambda}$ Polarization and Splitting Induced by Rotation
  and Magnetic Field   The global polarization of $\Lambda/{\bar \Lambda}$ and the splitting of
${\bar \Lambda}-\Lambda$ polarization induced by rotation and magnetic field
has been investigated in a dynamical quark model by taking into account the
axial vector interaction and the anomalous magnetic moment of quarks. It is
found that the rotation leads to the spin polarization of quarks and
anti-quarks with the same sign, while the magnetic field to opposite sign,
which corresponds to the ${\bar \Lambda}-\Lambda$ polarization splitting. The
combination of the two effects leads to perfect agreement with experiment data.
Quantitatively, the axial vector spin polarization contributes 30$\%$ of the
global polarization and the anomalous magnetic moment of quarks contributes
40$\%$ to the splitting of ${\bar \Lambda}-\Lambda$ polarization. However, at
$\sqrt{s_{NN}} \leq 7.7 \text{GeV}$, it still remains a challenge to reach
enough magnitude of the magnetic field at freeze-out.

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The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
3
The categories of this paper are: physics
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The categories of this paper are: econ
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
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The categories of this paper are: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: nlin
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The categories of this paper are: patt-sol