The inclusive search for the rare transition Upsilon(2S)-> eta Upsilon(1S) with the 160 Million sample of Upsilon(2S) collected by the Belle experiment at KEK is presented. The eta is searched in both in pi^+ pi^- pi^0 and gamma gamma mode, while the Upsilon(1S) is reconstructed in the two leptonic modes e^+e^- and mu^+mu^-. A blind analysis approach has been used obtainig an high significance signal.
Ricerca delle transizioni con mesone eta tra gli stati di bottomonio con l'esperimento Belle presso KEK
TAMPONI, UMBERTO
2010/2011
Abstract
The inclusive search for the rare transition Upsilon(2S)-> eta Upsilon(1S) with the 160 Million sample of Upsilon(2S) collected by the Belle experiment at KEK is presented. The eta is searched in both in pi^+ pi^- pi^0 and gamma gamma mode, while the Upsilon(1S) is reconstructed in the two leptonic modes e^+e^- and mu^+mu^-. A blind analysis approach has been used obtainig an high significance signal.File in questo prodotto:
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Utilizza questo identificativo per citare o creare un link a questo documento:
https://hdl.handle.net/20.500.14240/129135