Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1996-08-14
J.Phys.G23:401-421,1997
Physics
Nuclear Physics
Nuclear Theory
28 pages, LaTex file, 4 postscript figures included using epsf.sty, revised version, to be published in Journal of Physics G:
Scientific paper
10.1088/0954-3899/23/4/002
The recently developed method to solve the Faddeev equations in coordinate space is used to study the weakly bound halo nucleus, the hypertriton (Lambda + n + p). The long distances are treated carefully to achieve convergence and high accuracy. We use several sets of two-body interactions which reproduce the deuteron properties and provide the low-energy Lambda-nucleon scattering data close to that of two of Nijmegen potentials. We show that the details of the potentials are unimportant unless the accuracy of the hypertriton binding energy is required to be better than 50 keV. We find that the most significant parameter of the Lambda-nucleon interaction, the singlet s-wave scattering length, must be within 10% of 1.85 fm, when the Lambda-separation energy from the deuteron is about 130 keV. Other details of the Lambda-nucleon interaction are less important for the hypertriton structure. The scattering length and effective range are computed for scattering of a Lambda-particle on a deuteron. The folding model reducing the three-body problem to a two-body problem is investigated in this context and found to be inadequate.
Cobis A.
Fedorov Dmitry V.
Jensen Andreas Schmidt
No associations
LandOfFree
The simplest ``strange'' three-body halo does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The simplest ``strange'' three-body halo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The simplest ``strange'' three-body halo will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-358430