TY - JOUR
T1 - Faddeev calculation of a K-pp quasibound state
AU - Shevchenko, N. V.
AU - Gal, A.
AU - Mareš, J.
PY - 2007/2/22
Y1 - 2007/2/22
N2 - We report on the first genuinely three-body K̄NN-πΣN coupled-channel Faddeev calculation in search for quasibound states in the K-pp system. The main absorptivity in the K-p subsystem is accounted for by fitting to K-p data near threshold. Our calculation yields one such quasibound state, with I=1/2, Jπ=0-, bound in the range B∼55-70MeV, with a width of Γ∼90-110MeV. These results differ substantially from previous estimates, and are at odds with the K-pp→Λp signal observed by the FINUDA collaboration.
AB - We report on the first genuinely three-body K̄NN-πΣN coupled-channel Faddeev calculation in search for quasibound states in the K-pp system. The main absorptivity in the K-p subsystem is accounted for by fitting to K-p data near threshold. Our calculation yields one such quasibound state, with I=1/2, Jπ=0-, bound in the range B∼55-70MeV, with a width of Γ∼90-110MeV. These results differ substantially from previous estimates, and are at odds with the K-pp→Λp signal observed by the FINUDA collaboration.
UR - http://www.scopus.com/inward/record.url?scp=33847336038&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.98.082301
DO - 10.1103/PhysRevLett.98.082301
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:33847336038
SN - 0031-9007
VL - 98
JO - Physical Review Letters
JF - Physical Review Letters
IS - 8
M1 - 082301
ER -