Spectrum of b-baryons: color hyperfine interaction vs. experiment

M. Karliner

doi:10.1088/1674-1137/34/9/008

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2024年10月30日

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1191-1194 DOI: 10.1088/1674-1137/34/9/008

Spectrum of b-baryons: color hyperfine interaction vs. experiment

M. Karliner ^,

Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University, Tel Aviv, Israel

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Abstract：
I discuss several recent highly accurate theoretical predictions for masses of baryons containing the b quark, especially Ω_b(ssb) very recently reported by CDF. I also point out an approximate effective supersymmetry between heavy quark baryons and mesons and provide predictions for the magnetic moments of Λ_c and Λ_b. Proper treatment of the color-magnetic hyperfine interaction in QCD is crucial for obtaining these results.

References

[1]

Karliner M, Lipkin H J. hep-ph/0307243, Phys. Lett. B,2003, 575: 2492 Karliner M, Lipkin H. Phys. Lett. B, 2008, 660: 539[arXiv:hep-ph/0611306]3 Aaltonen T et al (CDF collaboration). Phys. Rev. Lett.,2007, 99: 2020014 Karliner M, Lipkin H J. Phys. Lett. B, 2007, 650: 185;[arXiv:hep-ph/0608004]5 De Rujula A, Georgi H, Glashow S L. Phys. Rev. D, 1975,12: 1476 Karliner M, Keren-Zur B, Lipkin H J, Rosner J L.arXiv:0706.2163v1 [hep-ph]7 Karliner M, Keren-Zur B, Lipkin H J, Rosner J L.arXiv:0708.4027 [hep-ph]; arXiv:0804.1575 [hep-ph]; An-nals Phys., 2009, 324: 28 Keren-Zur B. Annals Phys., 2008, 323: 631 [arXiv:hep-ph/0703011]9 Jenkins E E. Phys. Rev. D, 2008, 77: 03401210 Roberts W, Pervin M. arXiv:0711.2492 [nucl-th]11 Ebert D et al. Phys. Rev. D, 2005, 72: 034026; Phys. Lett.B, 2008, 659: 612

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M. Karliner. Spectrum of b-baryons: color hyperfine interaction vs. experiment[J]. Chinese Physics C, 2010, 34(9): 1191-1194. doi: 10.1088/1674-1137/34/9/008

M. Karliner. Spectrum of b-baryons: color hyperfine interaction vs. experiment[J]. Chinese Physics C, 2010, 34(9): 1191-1194. doi: 10.1088/1674-1137/34/9/008 shu

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Received: 2010-01-26
Revised: 1900-01-01

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Spectrum of b-baryons: color hyperfine interaction vs. experiment

M. Karliner ^,

Corresponding author: M. Karliner,

Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University, Tel Aviv, Israel

Received Date: 2010-01-26
Accepted Date: 1900-01-01
Available Online: 2010-09-05

Abstract: I discuss several recent highly accurate theoretical predictions for masses of baryons containing the b quark, especially Ω_b(ssb) very recently reported by CDF. I also point out an approximate effective supersymmetry between heavy quark baryons and mesons and provide predictions for the magnetic moments of Λ_c and Λ_b. Proper treatment of the color-magnetic hyperfine interaction in QCD is crucial for obtaining these results.