Y(4260)
Y(4260) è un adrone esotico scoperto dal rivelatore BaBar allo SLAC di Menlo Park, California e successivamente confermato da esperimenti eseguiti da altri gruppi di ricerca.[1] Si è ipotizzato che questa particella sia costituita di un gluone legato a un quark e un antiquark. La risonanza Y(4260) nel canale π+π−J/ψ è stata misurata più precisamente dall'esperimento BESIII nel 2017[2].
Note
- ^ (EN) T. Coan, Y. Gao, F. Liu, M. Artuso, S. Blusk, J. Butt, Charmonium Decays of Y(4260), ψ(4160), and ψ(4040), in Physical Review Letters, vol. 96, n. 16, 2006, DOI:10.1103/PhysRevLett.96.162003.
- ^ M. Ablikim et al., Precise Measurement of the e+e−→π+π−J/ψ Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV (abstract), in Physical Review Letters, vol. 118, n. 9, 1º marzo 2017, p. 092001, DOI:10.1103/PhysRevLett.118.092001. URL consultato il 22 luglio 2017.
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