Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Localization of 5D Elko Spinors on Minkowski Branes   Recently, a new spin-1/2 fermionic quantum field with mass dimension one in
four dimensions--Elko field $\lambda$ was introduced as a candidate of dark
matter. In this paper, we investigate the localization of 5D Elko {spinors} on
Minkowski branes by presenting the equation of {the} Elko KK modes. For the 5D
free massless Elko field, the zero mode can be localized on Randall-Sundrum
thin brane but can not be localized on the majority of thick branes. There {do}
not exist bound massive KK modes on all these branes. If the 5D mass term is
introduced, there will exist bound Elko zero mode in Randall-Sundrum brane
model. And when we introduce the Yukawa type coupling $\eta \phi^2 \mathop
\lambda\limits^\neg\lambda$ with $\phi$ the background scalar field, the Elko
zero mode can be localized on some special thick branes with a particular
coupling constant $\eta$. Nevertheless, the massive KK modes still can not be
localized on these branes. These results are very different from that of the
conventional Dirac spinor {field} and the scalar field.

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The categories of this paper are: math
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-bio
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The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
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The categories of this paper are: plasm-ph
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: cond-mat
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: astro-ph
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The categories of this paper are: econ