Dai, L. R. and Oset, E. and Geng, L. S. (2024) The D+s decay into π+K0SK0S reaction and the I=1 partner of the $f_0$ state. Il nuovo cimento C, 47 (4). pp. 1-5. ISSN 1826-9885
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Abstract
Two identified decay modes of the D+s → π+K∗+K∗−, π+K∗0K¯ ∗0 reactions producing a pion and two vector mesons are discussed in this talk. The posterior vector-vector interaction generates two resonances that we associate to the f0(1710) and the a0(1710) recently claimed, and they decay to the observed K+K− or K0 SK0 S pair, leading to the reactions D+s → π+K+K−, π+K0 SK0 S. The results depend on two parameters related to external and internal emission. We determine a narrow region of the parameters consistent with the large Nc limit within uncertainties which gives rise to decay widths in agreement with experiment. With this scenario we make predictions for the branching ratio of the a0(1710) contribution to the D+s → π0K+K0 S reaction, finding values within the range of (1.3±0.4)×10−3. We obtain predictions in good agreement with the BESIII measurements, confirming the new a0(1710) (a0(1817)) resonance. This is an important state and will shed light into the structure of scalar mesons in light quark sector and other relevant issues currently under debate in hadron physics.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 11 Sep 2024 15:21 |
| Last Modified: | 11 Sep 2024 15:21 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23108 |
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