TY - JOUR
T1 - Strangeness -2 hypertriton
AU - Garcilazo, H.
AU - Valcarce, A.
PY - 2013/1/4
Y1 - 2013/1/4
N2 - We solve for the first time, the Faddeev equations for the bound state problem of the coupled ΛΛN-ΞNN system to study whether or not a hypertriton with strangeness -2 may exist. We make use of the interactions obtained from a chiral quark model describing the low-energy observables of the two-baryon systems with strangeness 0, -1, and -2 and three-baryon systems with strangeness 0 and -1. The ΛΛN system alone is unbound. However, when the full coupling to ΞNN is considered, the strangeness -2 three-baryon system with quantum numbers (I,JP)=(12,12+) becomes bound, with a binding energy of about 0.5 MeV. This result is compatible with the nonexistence of a stable HΛ3 with isospin one.
AB - We solve for the first time, the Faddeev equations for the bound state problem of the coupled ΛΛN-ΞNN system to study whether or not a hypertriton with strangeness -2 may exist. We make use of the interactions obtained from a chiral quark model describing the low-energy observables of the two-baryon systems with strangeness 0, -1, and -2 and three-baryon systems with strangeness 0 and -1. The ΛΛN system alone is unbound. However, when the full coupling to ΞNN is considered, the strangeness -2 three-baryon system with quantum numbers (I,JP)=(12,12+) becomes bound, with a binding energy of about 0.5 MeV. This result is compatible with the nonexistence of a stable HΛ3 with isospin one.
UR - http://www.scopus.com/inward/record.url?scp=84872050435&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.110.012503
DO - 10.1103/PhysRevLett.110.012503
M3 - Artículo
C2 - 23383784
SN - 0031-9007
VL - 110
JO - Physical Review Letters
JF - Physical Review Letters
IS - 1
M1 - 012503
ER -