meson-baryon universality and effective supersymmetry in hadron spectrum
نویسندگان
چکیده
The recent measurement by CDF M(Σb)−M(Λb) = 192MeV is in striking agreement with our theoretical prediction M(Σb)−M(Λb) = 194MeV. In addition, the measured splitting M(Σb)−M(Σb) = 21 MeV agrees well with the predicted splitting of 22 MeV. We point out the connection between these predictions and an effective supersymmetry between mesons and baryons related by replacing a light antiquark by a light diquark. We discuss the theoretical framework behind these predictions and use it to provide additional predictions for the masses of spin2 and spin2 baryons containing heavy quarks, as well as for magnetic moments of Λb and Λc. e-mail: [email protected] e-mail: [email protected]
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تاریخ انتشار 2007