Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interpreting the LSND anomaly: sterile neutrinos or CPT-violation or...?   We first study how sterile neutrinos can fit the 5sigma bar-nu_mu -->
bar-nu_e LSND anomaly: 2+2 solutions are strongly disfavoured by solar and
atmospheric data, while 3+1 solutions can still give a poor fit (for a specific
range of oscillation parameters, to be tested by MiniBooNE). If instead
MiniBoone will find no nu_mu --> nu_e signal, we will have a hint for CPT
violation. Already now, unlike sterile neutrinos, CPT-violating neutrino masses
can nicely accomodate all safe and unsafe data. We study how much CPT must be
conserved according to atmospheric and K2K data and list which CPT-violating
signals could be discovered by forthcoming solar and long-baseline experiments.

23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio