Charged Snowball in Non-Polar Liquid

TL;DR

This paper revises the definition of charge carrier effective mass in superfluid helium, proposing a two-liquid model for the snowball quasiparticle and aligning theory with experimental data across various temperatures.

Contribution

It introduces a new two-liquid scenario for the snowball effective mass, removing the need for solidification assumptions near ions.

Findings

Effective mass M can be defined without solidification assumptions.

Normal fluid contribution causes singularity, which is regularized.

The theory agrees with experimental data over a wide temperature range.

Abstract

The problem of correct definition of the charge carrier effective mass in superfluid helium is revised. It is demonstrated that the effective mass $M$ of a such quasiparticle can be introduced without use of the Atkins's idea concerning the solidification of liquid He in the close vicinity of ion. The two-liquid scenario of the ''snowball'' mass formation is proposed. The normal fluid contribution to the total snowball effective mass, the physical reasons of its singularity and the way of corresponding regularization procedure are discussed. Agreement of the theory with the available experimental data is found in the wide range of temperatures.