Loading...
Note on Recent Measurements of the ?(1S) ???? (1S) and ?(2S) ???? (1S) Branching Ratios
Journal Title
PHYSICAL REVIEW D
Keywords
Readers/Advisors
Journal Title
Term and Year
Publication Date
2008-01-01
Book Title
Publication Volume
78
Publication Issue
5
Publication Begin
Publication End
Number of pages
Collections
Files
Research Projects
Organizational Units
Journal Issue
Abstract
Recently published measurements of the branching ratios ?(?(1S) ???_? (1S)) and ?(?(2S) ???_? (1S)) by the CLEO Collaboration are examined in the context of a potential model that includes both relativistic and one-loop QCD corrections to the quark-antiquark interaction. The prediction for the width ? (?(1S) ???_? (1S)) is in excellent agreement with the new data, but the prediction for ? (?(2S) ???_? (1S)) is too small. In an effort to understand this discrepancy, we derive an upper bound on ? (?(2S) ???_? (1S)) and point out its experimental value saturates this bound.
Citation
@ 2008 The American Physical Society
DOI: 10.1103/PhysRevD.78.057501