Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Super strong nuclear force caused by migrating Kbar mesons - Revival of
  the Heitler-London-Heisenberg scheme in kaonic nuclear clusters   We have studied the structure of K- pp comprehensively by solving this
three-body system in a variational method, starting from the Ansatz that the
Lambda(1405) resonance (~ Lambda*) is a K-p bound state. The structure of K-pp
reveals a molecular feature, namely, the K- in Lambda* as an "atomic center"
plays a key role in producing strong covalent bonding with the other proton. We
point out that strongly bound Kbar nuclear systems are formed by ``super
strong" nuclear force due to migrating real bosonic particles Kbar a la
Heitler-London-Heisenberg, whereas the normal nuclear force is caused by
mediating virtual pions. We have shown that the elementary process, p + p -->
K+ + Lambda* + p, which occurs in a short impact parameter and with a large
momentum transfer, leads to unusually large self-trapping of Lambda* by the
involved proton, since the Lambda*-p system exists as a compact doorway state
propagating to K-pp.

36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex