Comment on "Mass and K Lambda coupling of N*(1535)"

Abstract

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).

3 pages, comment on "Mass and K Lambda coupling of N*(1535)", B. C. Liu and B. S. Zou, Phys. Rev. Lett. 96, 042002 (2006)

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• A Three-Flavor Chiral Effective Model with Four Baryonic Multiplets within the Mirror Assignment
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• Comment on "Mass and KΛCoupling of the N*(1535)"
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• Study ${\Xi }_c^{+}\to \Lambda {\bar{K}}^0{\pi }^{+}$ and search for the low-lying baryons $\Xi (1/2^{-})$ and $\Sigma (1/2^{-})$
• The near threshold ${\pi }^{-}p\to \eta n$ reaction in an effective Lagrangian approach
• Complementary studies on $N^{\ast }$ from $e^{+}{e}^{-}$, $pp$ and $p\bar{p}$ collisions
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• On $pp\to pK\Lambda ,NK\Sigma ,pp\varphi$ -- the basic ingredients for strangeness production in heavy ion collisions
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• Partial wave analyses of $\psi (3686)\to p\bar{p}{\pi }^0$ and $\psi (3686)\to p\bar{p}\eta$
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