Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Randall-Sundrum and Flipped SU(5)   In this letter, we construct a model based on a flipped SU(5) partial grand
unified theory, within the framework of the Randall-Sundrum (RS1) proposal.
Breaking of $\widetilde{SU}(5)$ is achieved using a bulk scalar field in the
\textbf{10} of SU(5), $\Phi$, which gains a vacuum expectation value $\left<
\Phi\right> \sim 3 \times 10^{15}$ GeV. We are able to retain the successes of
the flipped SU(5) phenomenology, namely the elimination of the doublet-triplet
splitting problem and the confinement of all fields to the smallest
(\textbf{1}, $\mathbf{\bar{5}}$, and \textbf{10}) representations of SU(5). We
derive the beta functions, and point out some constraints on bulk matter
content implied by the runnings (and positivity) of the five dimensional
coupling. Finally, we comment on baryon decay and show the fine-tuning problem
required to prevent an exponentially short proton lifetime.

18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph