Chinese Physics C > 2017, Vol. 41 > Issue(9): 093101 DOI: 10.1088/1674-1137/41/9/093101

Spectroscopy, decay properties and Regge trajectories of the B and B_smesons

1.
Applied Physics Department, Polytechnic, The M. S. University of Baroda, Vadodara 390002, Gujarat, India
2.
Department of Applied Physics, Sardar Vallabhbhai National Institute of Technology, Surat 395007, Gujarat, India
3.
Applied Physics Department, Polytechnic, The M. S. University of Baroda, Vadodara 390002, Gujarat, India
4.
Department of Applied Physics, Sardar Vallabhbhai National Institute of Technology, Surat 395007, Gujarat, India

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Abstract：
A Gaussian wave function is used for detailed study of the mass spectra of the B and B _Smesons using a Cornell potential incorporated with a O(1/ m) correction in the potential energy term and expansion of the kinetic energy term up to O( p ¹⁰) for relativistic correction of the Hamiltonian. The predicted excited states for the B and B _smesons are in very good agreement with results obtained by experiment. We assign B ₂(5747) and B _s2(5840) as the 1 ³ P ₂state, B ₁(5721) and B _s1(5830) as the 1 P ₁state, B ₀(5732) as the 1 ³ P ₀state, B _s1(5850) as the 1 P' ₁state and B(5970) as the 2 ³ S ₁state. We investigate the Regge trajectories in the ( J,M ²) and ( n _r, M ²) planes with their corresponding parameters. The branching ratios for leptonic and radiative-leptonic decays are estimated for the B and B _Smesons. Our results are in good agreement with experimental observations as well as outcomes of other theoretical models.
- potential model,
- mass spectrum,
- decay constant,
- Regge trajectories

References

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Virendrasinh Kher, Nayneshkumar Devlani and Ajay Kumar Rai. Spectroscopy, decay properties and Regge trajectories of the B and B _smesons[J]. Chinese Physics C, 2017, 41(9): 093101. doi: 10.1088/1674-1137/41/9/093101

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Received: 2017-04-17

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A. K. Rai acknowledges the financial support extended by the Department of Science of Technology, India under SERB fast track scheme SR/FTP/PS-152/2012

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沈阳化工大学材料科学与工程学院沈阳 110142

Spectroscopy, decay properties and Regge trajectories of the B and B_smesons

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