Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Li-Rosmej analytical formula for energy level shifts in dense
  plasmas   Li and Rosmej derived analytical fits for the energy level shifts due to
plasma screening on the basis of a free-electron potential published by Rosmej
et al. one year earlier. The derivation of the fits, which were shown by
Iglesias to be inconsistent with the fundamental premise of the ion-sphere
model, was motivated by the belief that no analytical expression exists for the
expectation value $\langle r^{3/2}\rangle$, an assertion that was also
contradicted by Iglesias. In this short note, I point out that a simple
expression for the latter quantity can be obtained as a particular case of a
formula published by Shertzer, and I provide a corresponding compact analytical
expression for the level shifts in the framework of Rosmej's formalism.

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The categories of this paper are: adap-org
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The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
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The categories of this paper are: plasm-ph
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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: nucl-th
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The categories of this paper are: math
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The categories of this paper are: cond-mat
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int