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K- pp system with chiral SU(3) effective interaction

Akinobu Dote
(
- KEK, Tsukuba
)
,
Tetsuo Hyodo
(
- Munich, Tech. U. and
- Kyoto U., Yukawa Inst., Kyoto
)
,
Wolfram Weise
(
- Munich, Tech. U.
)

Feb, 2008

11 pages

Published in:

Nucl.Phys.A 804 (2008) 197-206

e-Print:

0802.0238 [nucl-th]

DOI:

10.1016/j.nuclphysa.2008.02.001

View in:

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Abstract: (Elsevier)

The K−pp system is investigated using a variational approach with realistic two-body interactions: the Argonne v18 NN potential and an energy dependent K¯N effective interaction derived from chiral SU(3) coupled-channel dynamics. Uncertainties in subthreshold extrapolations of the K¯N interaction are considered. A weakly bound K−pp state is found, with a binding energy B=(19±3) MeV substantially smaller than suggested in previous calculations. The decay width Γ(K−pp→πΣN) is estimated to range between about 40 and 70 MeV.

21.45.-v
21.85.+d
11.30.Rd
13.75.Jz
K -nuclear system
Variational calculation
Chiral SU(3) coupled-channel dynamics
K¯ -nuclear system
[formula omitted]-nuclear system
K- p: interaction

References(20)

Figures(0)

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B. Borasoy
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,
U.-G. Meissner
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)
,
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Chiral SU(3) Dynamics and Antikaon-Nuclear quasibound States

Wolfram Weise
(
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)
,
Rainer Hartle
(
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)

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•
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