The work presents the analysis of the hidden charm P-wave tetraquarks in the diquark model, using an e ective Hamiltonian incorporating the dominant spin–spin, spin–orbit and tensor interactions. We compare them with other P-wave systems such as P-wave charmonia and the newly discovered Ωcbaryons, analyzed recently in this framework. The experimental situation on the Y-states is not certain, therefore, by using di erent spectra a detailed discussion of the parameters related to the diquark model is presented. Using the parameters from the currently preferred Y-states pattern, we work out the spin-parity, JPC, and mass spectrum for many states in the hidden charm P-wave supermultiplet. We hope in future when there will be an experimental consensus on di erent Y-states, an observation of these new resonances would be a decisive footprint of the underlying diquark dynamics.
New look at hidden charm tetra and pentaquark states / Ali, Ahmed; Maiani, Luciano; Borisov, Anatoly V.; Ahmed, Ishtiaq; Jamil Aslame, M.; Parkhomenko, Alexander Ya.; Polosa, Antonio D.; Rehman, Abdur. - 49:6(2018), pp. 1315-1324. (Intervento presentato al convegno Cracow Epiphany Conference on Advances in Heavy Flavour Physics, Kraków, Poland, January 9–12, 2018. tenutosi a Kraków, Poland) [10.5506/APhysPolB.49.1315].
New look at hidden charm tetra and pentaquark states
Luciano Maiani;Antonio D. Polosa;
2018
Abstract
The work presents the analysis of the hidden charm P-wave tetraquarks in the diquark model, using an e ective Hamiltonian incorporating the dominant spin–spin, spin–orbit and tensor interactions. We compare them with other P-wave systems such as P-wave charmonia and the newly discovered Ωcbaryons, analyzed recently in this framework. The experimental situation on the Y-states is not certain, therefore, by using di erent spectra a detailed discussion of the parameters related to the diquark model is presented. Using the parameters from the currently preferred Y-states pattern, we work out the spin-parity, JPC, and mass spectrum for many states in the hidden charm P-wave supermultiplet. We hope in future when there will be an experimental consensus on di erent Y-states, an observation of these new resonances would be a decisive footprint of the underlying diquark dynamics.File | Dimensione | Formato | |
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Ali_New look at hidden_2018.pdf
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