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Estevez, Jonathan and Llanes Estrada, Felipe José and Martínez Fernández, Victor and Pastor Gutierrez, Álvaro (2020) Lightest flavor-singlet qqq baryons as witnesses to color. Physical review D, 102 (11). ISSN 2470-0010
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Official URL: http://dx.doi.org/10.1103/PhysRevD.102.114032
Abstract
We present a new computation in a field-theoretical model of Coulomb-gauge QCD of the first radial and angular excitations of a qqq system in an SU(3) flavor-singlet state, Lambda(S). The traditional motivation for the study is that the absence of flavor singlets in the lowest-lying spectrum is a direct consequence of the color degree of freedom. [The calculation is tested with decuplet baryons Delta(1232) and Omega(1672).] We also analyze decay branching fractions of the flavor-singlet baryon for various masses with the simplest effective Lagrangians.
Item Type: | Article |
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Additional Information: | © 2020 Amer Physical Soc. |
Uncontrolled Keywords: | Chiral dynamics; Bound-states; Quark-model; Spectroscopy; Particles; Meson; QCD. |
Subjects: | Sciences > Physics |
ID Code: | 63657 |
Deposited On: | 19 Jan 2021 18:33 |
Last Modified: | 14 Jan 2022 12:25 |
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