Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 78, Issue 1, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-017-5501-6
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Funding
- Russian Foundation for Basic Research [15-02-06033-a]
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We analyze the hidden charm P-wave tetraquarks in the diquark model, using an effective Hamiltonian incorporating the dominant spin-spin, spin-orbit and tensor interactions. We compare with other P-wave systems such as P-wave charmonia and the newly discovered Omega(c) baryons, analysed recently in this framework. Given the uncertain experimental situation on the Y states, we allow for different spectra and discuss the related parameters in the diquark model. In addition to the presently observed ones, we expect many more states in the supermultiplet of L = 1 diquarkonia, whose J(PC) quantum numbers and masses are worked out, using the parameters from the currently preferred Y-states pattern. The existence of these new resonances would be a decisive footprint of the underlying diquark dynamics.
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