Magnetic moments of baryons in a nonrelativistic quark model with unequal quark masses

1990 ◽  
Vol 103 (12) ◽  
pp. 1755-1759
Author(s):  
M. A. Samuel
Keyword(s):  
Quark Model ◽  
Magnetic Moments ◽  
Quark Masses ◽  
Nonrelativistic Quark Model

Electromagnetic properties of nonstrange Baryons in a nonrelativistic quark model

2017 ◽  
Vol 26 (07) ◽  
pp. 1750049 ◽  
Author(s):  
Zahra Ghalenovi ◽  
Masoumeh Moazzen
Keyword(s):  
Quark Model ◽  
Radiative Decay ◽  
Magnetic Moments ◽  
Theoretical Models ◽  
Branching Ratios ◽  
Electromagnetic Properties ◽  
Nonrelativistic Quark Model ◽  
Decay Widths ◽  
Helicity Amplitudes ◽  
Hyperspherical Approach

Masses and magnetic moments of [Formula: see text] and [Formula: see text] resonances are calculated employing the hyperspherical approach. We extend our scheme to obtain the helicity amplitudes and transition magnetic moments of the [Formula: see text] process. We also compute the radiative decay widths and branching ratios of [Formula: see text] baryons. A comparison of our results with the predictions obtained in recent theoretical models is also presented.

scholarly journals Baryon magnetic moments: Symmetries and relations

2018 ◽  
Vol 175 ◽  
pp. 06001 ◽  
Author(s):  
Assumpta Parreño ◽  
Martin J. Savage ◽  
Brian C. Tiburzi ◽  
Jonas Wilhelm ◽  
Emmanuel Chang ◽  
...  
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Magnetic Moments ◽  
Constituent Quark Model ◽  
Quark Masses ◽  
Symmetric Point ◽  
Down Quark ◽  
Model Predictions ◽  
Insight Into ◽  
Shed Light

Magnetic moments of the octet baryons are computed using lattice QCD in background magnetic fields, including the first treatment of the magnetically coupled ∑0- ⋀ system. Although the computations are performed for relatively large values of the up and down quark masses, we gain new insight into the symmetries and relations between magnetic moments by working at a three-flavor mass-symmetric point. While the spinflavor symmetry in the large Nc limit of QCD is shared by the naïve constituent quark model, we find instances where quark model predictions are considerably favored over those emerging in the large Nc limit. We suggest further calculations that would shed light on the curious patterns of baryon magnetic moments.

scholarly journals Magnetic Moments of 70-Plet Baryons in Quark Model and QCD Sum Rules

2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
T. M. Aliev ◽  
V. S. Zamiralov
Keyword(s):  
Quark Model ◽  
Sum Rules ◽  
Magnetic Moments ◽  
Positive Parity ◽  
Qcd Sum Rules ◽  
Unitary Symmetry ◽  
Nonrelativistic Quark Model ◽  
Octet Baryons

Magnetic moments of the positive parity 70-plet baryons are estimated in the framework of the nonrelativistic quark model and QCD sum rules method. It is found that the magnetic moments of the 70-plet baryons can be expressed in terms of theFandDcouplings and exhibit unitary symmetry. The QCD sum rules for the magnetic moments of the 70-plet octet baryons are formulated. A comparison of our results on magnetic moments of 56-plet and 70-plet baryons predicted from QCD sum rules is presented.

Baryon magnetic moments in the covariant oscillator quark model with unequal constituent masses

1983 ◽  
Vol 28 (11) ◽  
pp. 2918-2921 ◽  
Author(s):  
Shin Ishida ◽  
Kenji Yamada ◽  
Masuho Oda
Keyword(s):  
Quark Model ◽  
Magnetic Moments
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