Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new solution to the solar neutrino deficit   We reexamine the transition magnetic moment solution to the solar neutrino
problem. We argue that the absence of large time variations in the
Super-Kamiokande rate provides strong evidence against spin-flavor flip in the
solar convective zone. Spin-flavor flip could, however, occur in the primordial
magnetic field in the radiative zone. We compute the longest lived toroidal
mode for this field and show that spin-flavor flip in the radiative zone can
account for all available solar data.

9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex