Comment on "Mass and K Lambda Coupling of the N*(1535)" (CROSBI ID 149848)
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Podaci o odgovornosti
Ceci, Saša ; Švarc, Alfred ; Zauner, Branimir
engleski
Comment on "Mass and K Lambda Coupling of the N*(1535)"
It is argued in [1] that when the strong coupling to the K Lambda channel is considered, Breit-Wigner mass of the lightest orbital excitation of the nucleon N(1535) shifts to a lower value. The new value turned out to be smaller than the mass of the lightest radial excitation N(1440), which effectively solved the long-standing problem of conventional constituent quark models. In this Comment we show that it is not the Breit-Wigner mass of N(1535) that is decreased, but its bare mass. [1] B. C. Liu and B. S. Zou, Phys. Rev. Lett. 96, 042002 (2006).
baryon resonances; hadronic decays
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Podaci o izdanju
102 (20)
2009.
209101-1-209101-1
objavljeno
0031-9007
10.1103/PhysRevLett.102.209101