TY - JOUR
T1 - K̄NN quasibound state and the K̄N interaction
T2 - Coupled-channels Faddeev calculations of the K̄NN-πΣN system
AU - Shevchenko, N. V.
AU - Gal, A.
AU - Mareš, J.
AU - Révai, J.
PY - 2007/10/10
Y1 - 2007/10/10
N2 - Coupled-channels three-body calculations of an I=1/2,Jπ=0- K̄NN quasibound state in the K̄NN-πΣN system were performed and the dependence of the resulting three-body energy on the two-body K̄N-πΣ interaction was investigated. Earlier results of binding energy BK-pp~50-70 MeV and width ΓK-pp~100 MeV are confirmed [N. V. Shevchenko, Phys. Rev. Lett. 98, 082301 (2007)]. It is shown that a suitably constructed energy-independent complex K̄N potential gives a considerably shallower and narrower three-body quasibound state than the full coupled-channels calculation. Comparison with other calculations is made.
AB - Coupled-channels three-body calculations of an I=1/2,Jπ=0- K̄NN quasibound state in the K̄NN-πΣN system were performed and the dependence of the resulting three-body energy on the two-body K̄N-πΣ interaction was investigated. Earlier results of binding energy BK-pp~50-70 MeV and width ΓK-pp~100 MeV are confirmed [N. V. Shevchenko, Phys. Rev. Lett. 98, 082301 (2007)]. It is shown that a suitably constructed energy-independent complex K̄N potential gives a considerably shallower and narrower three-body quasibound state than the full coupled-channels calculation. Comparison with other calculations is made.
UR - http://www.scopus.com/inward/record.url?scp=35248860196&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.76.044004
DO - 10.1103/PhysRevC.76.044004
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AN - SCOPUS:35248860196
SN - 0556-2813
VL - 76
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 4
M1 - 044004
ER -