Is there a pi Lambda N bound state? - INSPIRE

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Is there a pi Lambda N bound state?

Avraham Gal
(
- Hebrew U.
)
,
Humberto Garcilazo
(
- Mexico, ESFM
)

May, 2008

11 pages

Published in:

Phys.Rev.D 78 (2008) 014013

e-Print:

0805.2334 [hep-ph]

DOI:

10.1103/PhysRevD.78.014013

View in:

ADS Abstract Service

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Abstract: (arXiv)

We have searched for bound states in the pion-Lambda-nucleon system by solving the nonrelativistic Faddeev equations, as well as a relativistic version, with input separable pion-Lambda, pion-nucleon, and Lambda-nucleon interactions. A bound-state solution, driven by the pion-nucleon Delta(1232) and the pion-Lambda Sigma(1385) p-wave resonances, was found in the channel (I,JP)=(3/2,2+), provided the Lambda lab momentum at which the Lambda-nucleon S=1,L=0,J=1 phase shift becomes negative is larger than about 750-800 MeV/c.

14.20.Pt
11.80.Jy
13.75.Gx
13.75.Ev
Lambda: bound state
three-body problem: (Lambda nucleon pi)
integral equations: solution
nonrelativistic
relativistic
separable potential

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Figures(0)

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