Retraction Notice: Interpretation of Stark broadening measurements on a spatially integrated plasma spectral line

At the request of the corresponding Author, this article has been retracted. Shortly after publication, the Editorial Board of EPJ Applied Physics received comments from the corresponding Author. He informs that he has found an error in the numerical determination of the PE spectral line. According to him, this error does not affect the construction of the paper or its conclusions. The Authors prefer to submit again the manuscript with the correct results, to the journal for evaluation and a republication could be considered. The errors can be found highlighted in yellow in the Supplementary material