Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Deuteron Spin Dependent Structure Function $ g_{2}(x)$ in
  Relativistic Model of Deuteron   The spin dependent deuteron structure functions are investigated in the
relativistic model of deuteron. It is shown that the deuteron structure
function $g_{2}(X)$ can be considered properly only in the infinite momentum
frame where the virtual photon has pure transverse components
($q_{0}=-q_{3}\rightarrow 0$ at $ P\rightarrow \infty $), whereas in the
conventional Breit frame the impulse approximation for $g_{2}(X)$ may be
violated due to $q\bar{q}$ pair creation by the virtual photon. It is shown
that due to relativistic effects the deuteron structure function $g_{2}(X)$ has
a nontrivial contribution determined by first derivative of the nucleon
structure function $g_{1}(x)$. Such contribution is small but it increases when
$X \rightarrow 1$. It may achieve about 10 \% at $ X \sim 0.75$ and could be
essentially larger for the transverse structure function $g_{\perp}(X).$

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The categories of this paper are: math
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics