Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A New Proposal for Neutrino Mass and |V(ud)| Measurements   We introduce a new method to detect the absolute neutrino mass scale. It uses
a macroscopic mass of tritium source. We explain that the neutrino mass can be
measured by scaling the mass difference of the source between initial and final
state, and its heat value. This method is free from the electron energy
resolution limit and the statistical error. We estimate the required accuracy
to measure the neutrino mass. We also report that the {u,d} component of the
CKM matrix, |V(ud)| may be determined in 10^-6 accuracy as an application of
this work.

20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph