Evidence for a narrow near-threshold structure in the J/ψ mass spectrum in B+→J/ψ K+ decays
Evidence is reported for a narrow structure near the J/ψ threshold in exclusive B+→J/ψ K+ decays produced in p̄p collisions at s=1.96TeV. A signal of 14±5 events, with statistical significance in excess of 3.8 standard deviations, is observed in a data sample corresponding to an integrated luminosit...
Hauptverfasser: | Aaltonen, T, Adelman, J, Akimoto, T, Álvarez González, B, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Apresyan, A, Arisawa, T, Artikov, A, Ashmanskas, W, Attal, A, Aurisano, A, Azfar, F, Badgett, W, Barbaro-Galtieri, A, Barnes, V, Barnett, B, Barria, P, Bartsch, V, Bauer, G, Beauchemin, P |
---|---|
Format: | Journal article |
Sprache: | English |
Veröffentlicht: |
2009
|
Ähnliche Einträge
-
Observation of Bs0→J/ψK*(892)0 and Bs0→J/ψKS0 decays
von: Aaltonen, T, et al.
Veröffentlicht: (2011) -
Measurement of the CP-violating phase βsJ/ψ in Bs0→J/ψ decays with the CDF II detector
von: Aaltonen, T, et al.
Veröffentlicht: (2012) -
Polarizations of J/ψ and ψ(2S) mesons produced in pp̄ collisions at s=1.96TeV
von: Abulencia, A, et al.
Veröffentlicht: (2007) -
Measurement of lifetime and decay-width difference in Bs0→J/ψ decays
von: Aaltonen, T, et al.
Veröffentlicht: (2008) -
First flavor-tagged determination of bounds on mixing-induced CP violation in Bs0→J/ψ decays
von: Aaltonen, T, et al.
Veröffentlicht: (2008)