Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nucleon resonances with spin $\frac{3}{2}$ and isospin $\frac{1}{2}$   Investigation of the nucleon's excited states has always become an important
research topic because of the rich information they provide. Since their first
observation, dating back about 70 years, the investigation of their various
parameters contributed both to the development of the quark model and better
understanding of the QCD as the theory of strong interaction. Their
investigation still has importance. The researches conducted on the nucleon
excited states are helpful to probe missing resonances predicted by the quark
model but not observed yet. With this motivation, we study the low lying
nucleon resonance with $I(J^P)=\frac{1}{2}(\frac{3}{2}^{-})$ and its
corresponding orbital and radial excitations with
$I(J^P)=\frac{1}{2}(\frac{3}{2}^+)$ and $I(J^P)=\frac{1}{2}(\frac{3}{2}^-)$,
respectively. Using the QCD sum rule method, we calculate the masses and pole
residues of these states. The obtained mass results are consistent with the
mass ranges presented in PDG for the resonances $N^*(1520)(3/2^-)$,
$N^*(1700)(3/2^-)$, and $N^*(1720)(3/2^+)$. The results of masses and residues
of these states may be used as input parameters to calculate various quantities
related to their electromagnetic, weak and strong interactions with other
particles with the aim of getting more information on their nature and
structure.

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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: ao-sci
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The categories of this paper are: cs
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The categories of this paper are: gr-qc