Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determination of the String Scale in D-Brane Scenarios and Dark Matter
  Implications   We analyze different phenomenological aspects of D-brane constructions.
First, we obtain that scenarios with the gauge group and particle content of
the supersymmetric standard model lead naturally to intermediate values for the
string scale, in order to reproduce the value of gauge couplings deduced from
experiments. Second, the soft terms, which turn out to be generically non
universal, and Yukawa couplings of these scenarios are studied in detail.
Finally, using these soft terms and the string scale as the initial scale for
their running, we compute the neutralino-nucleon cross section. In particular
we find regions in the parameter space of D-brane scenarios with cross sections
in the range of $10^{-6}$--$10^{-5}$ pb, i.e. where current dark matter
experiments are sensitive. For instance, this can be obtained for $\tan\beta >
5$.

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The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
16
The categories of this paper are: stat
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The categories of this paper are: eess
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex