Marc Pelizaeus - Meson

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Reconstruction • Clean sample – well identified K ± und π ± candidates – common vertex required – Momentum: p CM (D s )>2.2 GeV/c – >400.000 reconstructed D s →φ(K + K - )π + and D s → * (K - π + )K + decays e - γ π 0 γ K - K + π + D s e + • Combination of D s candidates with further γ,π 0 ,π ± of same event – Momentum: p CM (D sJ )>3.2 GeV/c M. Pelizäus, Charm and Charmonium Spectroscopy 24
Reflections in D s π 0 Data MC Efficiency / resolution M. Pelizäus, Charm and Charmonium Spectroscopy 25
Page 1 and 2: 9 th International Workshop on Meso
Page 3 and 4: Production of hidden and open charm
Page 5 and 6: • Put further experimental constr
Page 7 and 8: Exclusive study of D sJ (2460) •
Page 9 and 10: Exclusive study: Summary • Decay
Page 11 and 12: Exclusive study of the DK system
Page 13 and 14: Further studies of D sJ *(2860) •
Page 15 and 16: • Tetra quark model - predicts no
Page 17 and 18: Exclusive study of X(3872) • B +
Page 19 and 20: Discovery of Y(4260) • Negative s
Page 21 and 22: • X(3872) (→J/ψπ + π − , J
Page 23: Backup Slides M. Pelizäus, Charm a
Page 27 and 28: Babar: 193 fb -1 PRD 71, 031501 (20
Page 29 and 30: Confirmation of Y(4260) from CLEO-I
Page 31: ISR studies of Y(4260) • No indic

Marc Pelizaeus - Meson

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