Mass spectra of the heavy baryons Lambda_Q and Sigma_Q^(*) from QCD sum rules
| dc.creator | Zhang, Jian-Rong | |
| dc.creator | Huang, Ming-Qiu | |
| dc.date | 2008-05-05 | |
| dc.date.accessioned | 2026-07-07T11:33:45Z | |
| dc.date.available | 2026-07-07T11:33:45Z | |
| dc.description | We use QCD sum rule approach to calculate the masses of the ground-state Lambda_Q and Sigma_Q^(*) baryons. Contributions of the operators up to dimension six are included in operator product expansion. The resulting heavy baryonic masses from the calculations are m_{Lambda_b}=5.69 +/- 0.13 GeV, and m_{Lambda_c}=2.31 +/- 0.19 GeV for Lambda_Q; m_{Sigma_b}=5.73 +/- 0.21 GeV, m_{Sigma_b^*}=5.81 +/- 0.19 GeV, m_{Sigma_c}=2.40 +/- 0.31 GeV and m_{Sigma_c^*}=2.56 +/- 0.24 GeV for Sigma_Q^(*), respectively, which are in good agreement with the experimental values. | |
| dc.description | RevTeX4, 8 pages with 14 eps figures | |
| dc.identifier | https://arxiv.org/abs/0805.0479 | |
| dc.identifier | http://arxiv.org/abs/0805.0479 | |
| dc.identifier | Phys.Rev.D77:094002,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.77.094002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/198003 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Mass spectra of the heavy baryons Lambda_Q and Sigma_Q^(*) from QCD sum rules | |
| dc.type | text |