Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cosmic Rays and the Chiral Puzzle of Life   Living organisms exhibit consistent homochirality. It is argued that the
specific, binary choice made is not an accident but is a consequence of parity
violation in the weak interaction expressed by cosmic irradiation. The
secondary muons and pairs are spin- and magnetic moment- polarized and may
introduce a small, net chiral preference when they interact electromagnetically
or quantum mechanically with molecules that have made the transition to
self-replication. Although this preference is likely to be very small, it may
suffice to give a chirally-dominant outcome after billions of replications,
especially if combined with chirally-unbiased conflict between the two choices.
Examples of mechanisms that can manifest the three essential steps of
polarization, preference and domination are presented and some variations and
possible implications are discussed.

30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol