Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new ansatz for quark and lepton mass matrices   A new ansatz for quark and lepton mass matrices is proposed in the context of
supersymmetric grand unified theories. The 13 parameters describing fermion
masses and mixings are determined in terms of only 6 free parameters, allowing
7 testable predictions. The values of $V_{us}$, $V_{cb}$, $V_{ub}$, $m_u$,
$m_d$, $m_s$, and $m_b$ are then predicted as a function of the 3 charged
lepton masses, $m_c$, $m_t$, and $\tan \beta$, the ratio of Higgs vacuum
expectation values. In particular the Cabibbo angle and $m_s/m_d$ are
determined in terms of only lepton masses. All predictions are in very good
agreement with experiments.

5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th