TY - JOUR
T1 - ΛnN and ΣnN systems at threshold. II. the effect of D waves
AU - Garcilazo, H.
AU - Valcarce, A.
AU - Fernández-Caramés, T.
PY - 2007/9/4
Y1 - 2007/9/4
N2 - Using the two-body interactions obtained from a chiral constituent quark model, we study all ΛNN and ΣNN states with I=0,1,2 and J=1/2,3/2 at threshold, taking into account all three-body configurations with S and D wave components. We constrain further the limits for the ΛN spin-triplet scattering length a1/2,1. Using the hypertriton binding energy, we find a narrow interval for the possible values of the ΛN spin-singlet scattering length a1/2,0. We find that the ΣNN system has a quasibound state in the (I,J)=(1,1/2) channel very near threshold with a width of about 2.1 MeV.
AB - Using the two-body interactions obtained from a chiral constituent quark model, we study all ΛNN and ΣNN states with I=0,1,2 and J=1/2,3/2 at threshold, taking into account all three-body configurations with S and D wave components. We constrain further the limits for the ΛN spin-triplet scattering length a1/2,1. Using the hypertriton binding energy, we find a narrow interval for the possible values of the ΛN spin-singlet scattering length a1/2,0. We find that the ΣNN system has a quasibound state in the (I,J)=(1,1/2) channel very near threshold with a width of about 2.1 MeV.
UR - http://www.scopus.com/inward/record.url?scp=34548554343&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.76.034001
DO - 10.1103/PhysRevC.76.034001
M3 - Artículo
SN - 0556-2813
VL - 76
JO - Physical Review C
JF - Physical Review C
IS - 3
M1 - 034001
ER -