Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gravitational Origin of Quark Masses in an Extra-Dimensional Brane World   Using the warped extra dimension geometry of the many-brane extension of the
Randall-Sundrum solution, we find a natural explanation for the observed quark
masses of the three Standard Model (SM) generations. Localizing massless SM
matter generations on neighboring 3-branes in an extra dimensional world leads
to phenomenologically acceptable effective four dimensional masses arising from
the coupling of the fermion field with the background metric. Thus this
geometry can simultaneously address the gauge and quark mass hierarchy
problems.

36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys