Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of charged Higgs bosons in the deep inelastic process \nu_{\tau}
  {\cal N} \to \tau^- X and the possibility of detecting tau-neutrinos at
  cosmic neutrino detectors   We study the deep inelastic process $\nu_{\tau} + {\cal N} \to \tau^{-} + X$
(with ${\cal N} \equiv (n+p)/2$ an isoscalar nucleon), in the context of the
two Higgs doublet model type II (2HDM(II)). We discuss the contribution to the
total cross section of diagrams, in which a charged Higgs boson is exchanged.
We present results which show the strong dependence of such contribution on
$\tan\beta$ and $M_{H^{\pm}}$. We show that in the region $50 \leq \tan\beta
\leq 200$ and 90 GeV $\leq M_{H^{\pm}}\leq$ 600 GeV with the additional
experimental constraint on the involved model parameters $M_{H^{\pm}} \geq 1.5
\times \tan\beta$ GeV, the contribution of the charged Higgs boson exchange
diagrams to the cross section of the charged current inclusive $\nu_{\tau}
{\cal N}$ collision can become important. We obtain that this contribution for
an inclusive dispersion generated through the collision of an ultrahigh energy
tau-neutrino with $E_{\nu} \approx 10^{20}$ eV on a target nucleon can be
larger than the value of the contribution of the $W^{\pm}$ exchange diagrams,
provided that $M_{H^{\pm}} \approx 300$ GeV and $\tan\beta \approx 200$. Such
enhancement and the induced variation on the mean inelasticity $<y >^{CC}$
could lead to sizeable effects in the acceptance of cosmic tau-neutrino
detectors at experiments such as HiRes, PAO, and the CRTNT, which are anchored
to the ground, and at experiments such as EUSO and OWL, which are proposed to
orbit around the Earth.

26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
16
The categories of this paper are: stat