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Article overview
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QCD studies and discoveries with e+e- colliders and future perspectives | Jens Soeren Lange
; Belle Collaboration
; | Date: |
Thu, 30 Aug 2012 10:18:44 GMT (1836kb) | Abstract: | Observations of new charmonium(-like) and bottomonium(-like) states
(sometimes refered to as "XYZ" states) at e+e- colliders have changed our
picture of quarkonia systems as QCD bound states. Potential models with a
linear confinement ansatz, which were able to predict many conventional states
with an accuracy of ~1 MeV, absolutely fail in describing many of the new
states. Symmetries play an important role e.g. in the determination of the
quantum numbers (such as charge conjugation in the radiative decays) or in
trying to explain surprising properties such as isospin violation. It will also
be discussed, how future experiments (Panda, Belle II) can help to understand
the nature of these states. | Source: | arXiv, 1208.6128 | Services: | Forum | Review | PDF | Favorites |
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