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Observation of Observation of tensor glueball in the reactions p anti-p -> pi-pi, eta-eta, eta-eta' | | V. V. Anisovich
; A. V. Sarantsev
; | | Date: |
14 Apr 2005 | | Journal: | JETP Lett. 81 (2005) 417-423; Pisma Zh.Eksp.Teor.Fiz. 81 (2005) 531-537 | | Subject: | hep-ph | | Abstract: | Partial wave analysis of the reactions p anti-p -> pi-pi, eta-eta, eta-eta’ in the region of invariant masses 1900-2400 MeV indicates to the existence of four relatively narrow tensor-isoscalar resonances f_2(1920), f_2(2020), f_2(2240), f_2(2300) and the broad state f_2(2000). The determined decay couplings of the broad resonance f_2(2000)-> pi0-pi0, eta-eta, eta-eta’ satisfy the relations appropriate to those of tensor glueball, while the couplings of other tensor states do not, thus verifying the glueball nature of f_2(2000). | | Source: | arXiv, hep-ph/0504106 | | Services: | Forum | Review | PDF | Favorites | |
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