Mass spectra and Regge trajectories of Λc+, Σc0, Ξc0 and Ωc0 baryons

  • We calculate the mass spectra of the singly charmed baryons (Λc+, Σc0, Ξc0 and Ωc0) using the hypercentral constituent quark model (hCQM). The hyper color Coulomb plus linear potential is used to calculate the masses of positive (up to Jp=(7+)/(2)) and negative (up to Jp=(9-)/(2)) parity excited states. The spin-spin, spin-orbital and tensor interaction terms are also incorporated for mass spectra. We have compared our results with other theoretical and lattice QCD predictions for each baryon. Moreover, the known experimental results are also reasonably close to our predicted masses. By using the radial and orbital excitation, we construct Regge trajectories for the baryons in the (n,M2) plane and find their slopes and intercepts. Other properties of these baryons, like magnetic moments, radiative transitions and radiative decay widths, are also calculated successfully.
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Zalak Shah, Kaushal Thakkar, Ajay Kumar Rai and P. C. Vinodkumar. Mass spectra and Regge trajectories of Λc+, Σc0, Ξc0 and Ωc0 baryons[J]. Chinese Physics C, 2016, 40(12): 123102. doi: 10.1088/1674-1137/40/12/123102
Zalak Shah, Kaushal Thakkar, Ajay Kumar Rai and P. C. Vinodkumar. Mass spectra and Regge trajectories of Λc+, Σc0, Ξc0 and Ωc0 baryons[J]. Chinese Physics C, 2016, 40(12): 123102.  doi: 10.1088/1674-1137/40/12/123102 shu
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Received: 2016-08-06
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    Supported in part (A. K. Rai) by DST, India (SERB Fast Track Scheme SR/FTP/PS-152/2012)

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Mass spectra and Regge trajectories of Λc+, Σc0, Ξc0 and Ωc0 baryons

    Corresponding author: Ajay Kumar Rai, raiajayk@gmail.com
  • 1.  Department of Applied Physics, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat 395007, India
  • 2.  Department of Applied Sciences &
  • 3.  Department of physics, Sardar Patel University, V. V. Nagar, Anand 388120, India
Fund Project:  Supported in part (A. K. Rai) by DST, India (SERB Fast Track Scheme SR/FTP/PS-152/2012)

Abstract: We calculate the mass spectra of the singly charmed baryons (Λc+, Σc0, Ξc0 and Ωc0) using the hypercentral constituent quark model (hCQM). The hyper color Coulomb plus linear potential is used to calculate the masses of positive (up to Jp=(7+)/(2)) and negative (up to Jp=(9-)/(2)) parity excited states. The spin-spin, spin-orbital and tensor interaction terms are also incorporated for mass spectra. We have compared our results with other theoretical and lattice QCD predictions for each baryon. Moreover, the known experimental results are also reasonably close to our predicted masses. By using the radial and orbital excitation, we construct Regge trajectories for the baryons in the (n,M2) plane and find their slopes and intercepts. Other properties of these baryons, like magnetic moments, radiative transitions and radiative decay widths, are also calculated successfully.

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