Study of Beauty Baryons at the LHCb Experiment
https://doi.org/10.56304/S2079562920060408
Abstract
The high statistics collected by the LHCb experiment in proton-proton collisions during Run 1 and 2 of the Large Hadron Collider provides a unique opportunity for study of beauty baryons and to broaden knowledge about their spectroscopy. The paper presents the recent results of searches for new beauty particles decays, as well as the results of searches for new excited states of b-hadrons. In particular, the first observation of excited Ω-b states, the observation of two narrow Лb(6146)0 and Лb(6152)0 states, the observation of new Лb**0 state consistent with the prediction for Лb(2S)0 baryon, and the observation of the Лb0 → ψ 2S pπ- decay are presented.
About the Author
V. I. MatiuninRussian Federation
123182; Moscow
References
1. LHCb Collab. // Phys. Rev. Lett. 2017. V. 118. P. 182001.
2. LHCb Collab. // Phys. Rev. Lett. 2020. V. 124. P. 082002.
3. LHCb Collab. // Phys. Rev. Lett. 2012. V. 109. P. 172003.
4. LHCb Collab. // Phys. Rev. Lett. 2019. V. 123. P. 152001.
5. LHCb Collab. // J. High Energy Phys. 2020. V. 2020 (6). P. 136.
6. Chen B., Wei K.-W., Zhang A. // Eur. Phys. J. A . 2015. V. 51. P. 82.
7. Capstick S., Isgur N. // Phys. Rev. D. 1986. V. 34. P. 2809.
8. CMS Collab. // Phys. Lett. B. 2020. V. 803. P. 135345.
9. Brambilla N. et al. // Eur. Phys. J. C. 2011. V. 71. P. 1534.
10. LHCb Collab. // Phys. Rev. D. 2019. V. 100. P. 112006.
11. LHCb Collab. // J. High Energy Phys. 2018. V. 2018 (8). P. 131.
Review
For citations:
Matiunin V.I. Study of Beauty Baryons at the LHCb Experiment. Nuclear Physics and Engineering. 2021;12(3):175-178. (In Russ.) https://doi.org/10.56304/S2079562920060408