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Mass formula

About: Mass formula is a research topic. Over the lifetime, 1248 publications have been published within this topic receiving 22043 citations.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a connection between a quark model, with relativistic kinematics and a Y-confinement plus one gluon exchange, and the 1/N{sub c} expansion mass formula is extended to strange baryons.
Abstract: A previous work establishing a connection between a quark model, with relativistic kinematics and a Y-confinement plus one gluon exchange, and the 1/N{sub c} expansion mass formula is extended to strange baryons. Both methods predict values for the SU(3)-breaking mass terms which are in good agreement with each other. Strange and nonstrange baryons are shown to exhibit Regge trajectories with an equal slope, but with an intercept depending on the strangeness. Both approaches agree on the value of the slope and of the intercept, and on the existence of a single good quantum number labeling the baryons within a given Regge trajectory.

9 citations

Journal ArticleDOI
TL;DR: In this paper, the deformed relativistic mean field theory was adopted as a framework and pairing correlations were treated by a simple BCS method with a zero-range δ-force.
Abstract: We perform a systematic study of all the traditional neutron magic nuclei with N = 8, 20, 28, 50, 82 and 126, from the neutron drip line to the proton drip line. We adopt the deformed relativistic mean-field theory as our framework and treat pairing correlations by a simple BCS method with a zero-range δ-force. Remarkable agreement with the available experimental data is obtained for the binding energies, the two- and one-proton separation energies, and the nuclear charge radii. The calculated nuclear deformations are compared with the available experimental data and the predictions of the FRDM mass formula and the HFBCS-1 mass formula. We discuss, in particular, the appearance of sub-shell magic nuclei by observing irregular behaviour in the two- and one-proton separation energies.

9 citations

Journal ArticleDOI
TL;DR: In this paper, the authors classified two-quark or unmixed mesons according to the recently proposed spinor strong interaction theory, which also aids in the tentative classification of four quark mixed mesons.
Abstract: Known two-quark or unmixed mesons are classified according to the recently proposed spinor strong interaction theory, which also aids in the tentative classification of four-quark mixed mesons. No approximation is made in the derivation of the mass formula from the covariant basic equations, in which linear confinement is inherent. The ground-state scalar and axial vector mesons are not confined and cannot exist. The forbidden states include the unseen . Six unmixed pseudoscalar meson masses are used to determine the five quark masses and the eigenvalue of the nonlinear differential equation of the theory. The predicted masses of the remaining unmixed pseudoscalar mesons agree with data within experimental error or very close to it. The predicted vector meson masses agree fairly well with data. Predicted masses of purely radially excited mesons also agree with data within experimental error, using three data points as input.

9 citations

Journal ArticleDOI
TL;DR: In this paper, a general SU(3) analysis of vector meson and pseudoscalar meson radiative decays is carried out, and two solutions are obtained, corresponding either to an inverse-square mass formula or to a linear mass formula for vector mesons that lead to reasonable agreement with most of the radiative decay.
Abstract: A general SU(3) analysis of vector meson and pseudoscalar meson radiative decays is carried out. Two solutions are obtained, corresponding either to an inverse-square mass formula or to a linear mass formula for vector mesons that lead to reasonable agreement with most of the radiative decays. (AIP)

9 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20235
202212
202113
202025
201917
201823