منابع مشابه
Search for pentaquarks at Belle
Abstract We search for the strange pentaquark Θ+ using kaon interactions in the material of the Belle detector. No signal is observed in the pKS final state, while in the pK − final state we observe ∼ 1.6 · 104 Λ(1520) → pK decays. We set an upper limit on the ratio of Θ+ to Λ(1520) yields σ(Θ+)/σ(Λ(1520)) < 2% at 90% CL, assuming that the Θ+ is narrow. We also report on searches for strange an...
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We report measurements and searches for resonant B → Kh → Kγγ decays where h is a η, η, ηc, ηc(2S), χc0, χc2, J/ψ meson or the X(3872) particle. The results are based on a data sample containing 535 million BB pairs collected with the Belle detector at the KEKB ee asymmetric-energy collider operating at the Υ(4S) resonance. Signals are observed in the modes with η and η, and we obtain evidence ...
متن کاملSearch for Resonant B ± → K ± h → K ± γγ Decays at Belle Belle
We report measurements and searches for resonant B → Kh → Kγγ decays where h is a η, η, ηc, ηc(2S), χc0, χc2, J/ψ meson or the X(3872) particle. The results are based on a data sample containing 535 million BB pairs collected with the Belle detector at the KEKB ee asymmetric-energy collider operating at the Υ(4S) resonance. Signals are observed in the modes with η and η, and we obtain evidence ...
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K.-F. Chen, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, 14 S. Bahinipati, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, K. Belous, U. Bitenc, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, M.-C. Chang, P. Chang, Y. Chao, A. Chen, B. G. Cheon, C.-C. Chiang, I.-S. Cho, Y. Choi, Y. K. Choi, S. Cole, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, B. Golob...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2008
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.77.051101