Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fermion number anomaly with the fluffy mirror fermion   Quite recently, Grabowska and Kaplan presented a 4-dimensional lattice
formulation of chiral gauge theories based on the chiral overlap operator. We
study this formulation from the perspective of the fermion number anomaly and
possible associated phenomenology. A simple argument shows that the consistency
of the formulation implies that the fermion with the opposite chirality to the
physical one, the "fluffy mirror fermion" or "fluff", suffers from the fermion
number anomaly in the same magnitude (with the opposite sign) as the physical
fermion. This immediately shows that if at least one of the fluff quarks is
massless, the formulation provides a simple viable solution to the strong CP
problem. Also, if the fluff interacts with gravity essentially in the same way
as the physical fermion, the formulation can realize the asymmetric dark matter
scenario.

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The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin
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The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: physics
37
The categories of this paper are: supr-con
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The categories of this paper are: stat