Re: LB17688
    Decay law of magnetic turbulence with helicity balanced by chiral
    fermions
    by Axel Brandenburg, Kohei Kamada, and Jennifer Schober

Dear Dr. Brandenburg,

This manuscript has been reviewed by our referees. A critique from the
reports appears below. Based on this we judge that the work probably
warrants publication in some form, but does not meet the Physical
Review Letters criteria of impact, innovation, and interest. In
accordance with our standard practice (refer to memo noted below),
this concludes our review of your manuscript.

The paper, with revision as appropriate, might be suitable for
publication in one of the topical Physical Review journals (e.g.,
Physical Review D) or Physical Review Research. The editors of that
journal will make the decision on publication, and may seek further
review. However, our complete file is available.

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is a fully open access publication and, thus, article publication
charges would apply.

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to all referee comments and a summary of revisions made.

Yours sincerely,

Serena Dalena, Ph.D. (she/her/hers)
Associate Editor
Physical Review Letters
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Second Report of Referee A -- LB17688/Brandenburg
----------------------------------------------------------------------

The authors have clarified a lot of issues with the first version of 
their manuscript. However, the novelty still remains in question. The 
adaptation of the Hosking integral by the addition of the chemical 
potential term could be important in some scenarios. The situation 
with zero total helicity (as defined in the paper) seems rather 
special. In generic situations, the magnetic helicity and the chemical 
potential won't cancel each other. I view this paper as an interesting 
study in MHD evolution, with a potentially important conservation 
principle, but have reservations about its physical applications. 

I do not recommend publication in PRL, but would urge the authors to 
publish the article in a more specialized journal.

----------------------------------------------------------------------
Second Report of Referee B -- LB17688/Brandenburg
----------------------------------------------------------------------

I have gone through the authors' reply and the revised manuscript. The
authors now stress that the power-law decay of the magnetic helicity
and the chiral chemical potential, found in this manuscript, has a
significant impact on our understanding of the baryon asymmetry of the
Universe. If so, these results would be interesting and important, and
should have been the main part of the Letter.

The present manuscript, however, does not elaborate on how the
power-law decay changes our understanding of the baryon asymmetry of
the Universe. This manuscript rather looks a technical report of
(routine, according to Referee A) simulation results, which is not
very readable for non-experts. Therefore, it lacks physical
significance and novel innovations, and I cannot recommend its
publication in Physical Review Letters.

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