Masses of doubly heavy-quark baryons in an extended chromomagnetic model

We extend the chromomagnetic model by further considering the effect of color interaction. The effective mass parameters between quark pairs (mqq or mqq¯) are introduced to account for both the effective quark masses and the color interaction between the two quarks. Using the experimental masses of hadrons, the quark pair parameters are determined between the light quark pairs and the light-heavy quark pairs. Then the parameters of heavy quark pairs (cc, cb, bb) are estimated based on simple quark model assumption. We calculate all masses of doubly and triply heavy-quark baryons. The newly discovered doubly charmed baryon Ξcc fits into the model with an error of 12 MeV.

Note:

Correct some grammar errors and add some references

quark: pair
color: interaction
quark: mass
hadron: mass
effect: color
heavy quark
chromomagnetic
charmed baryon
quark model

References(102)

Figures(0)

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