Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hypernuclei in Halo/Cluster Effective Field Theory   The light double $\Lambda$ hypernuclei, ${}_{\Lambda\Lambda}^{\ \ 4}$H and
${}_{\Lambda\Lambda}^{\ \ 6}$He, are studied as three-body $\Lambda\Lambda d$
and $\Lambda\Lambda\alpha$ cluster systems in halo/cluster effective field
theory at leading order. We find that the $\Lambda\Lambda d$ system in spin-0
channel does not exhibit a limit cycle whereas the $\Lambda\Lambda d$ system in
spin-1 channel and the $\Lambda\Lambda\alpha$ system in spin-0 channel do. The
limit cycle is associated with the formation of bound states, known as Efimov
states, in the unitary limit. For the $\Lambda\Lambda d$ system in the spin-0
channel we estimate the scattering length $a_0$ for $S$-wave $\Lambda$
hyperon-hypertriton scattering as $a_0=16.0\pm 3.0$ fm. We also discuss that
studying the cutoff dependences in the $\Lambda\Lambda d$ and
$\Lambda\Lambda\alpha$ systems, the bound state of ${}_{\Lambda\Lambda}^{\ \
4}$H is not an Efimov state but formed due to a high energy mechanism whereas
that of ${}_{\Lambda\Lambda}^{\ \ 6}$He may be regarded as an Efimov state.

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The categories of this paper are: eess
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The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: physics
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The categories of this paper are: supr-con
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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
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The categories of this paper are: acc-phys
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: bayes-an
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The categories of this paper are: econ
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: nlin
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The categories of this paper are: patt-sol