RT Journal Article
T1 Y(4260) and possible charmonium assignment
A1 Llanes Estrada, Felipe José
AB The newly reported Y(4260) becomes the second most massive state in the charmonium family. We argue that it displaces the  4415  as the (largely) 4s vector charmonium state, recall s   d wave interference to explain the lack of a signal in e e  ! hadrons and suggest some further study avenues that can exclude exotic meson assignments. The absence of a J= KK mode can be understood, beyond phase space suppression, to be a consequence of chiral symmetry. We also provide a model calculation in this sector showing that, although forcing the fit somewhat (which suggests a small sea quark wave function component), the state can be incorporated in a standard scheme
PB American Physical Soc
SN 1550-7998
YR 2005
FD 2005-08
LK https://hdl.handle.net/20.500.14352/50842
UL https://hdl.handle.net/20.500.14352/50842
LA eng
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NO © 2005 The American Physical Society.The author thanks Fundacion del Amo-Universidad Complutense for financial support, the hospitality of the SLAC theory group, and useful conversations with H. Quinn, A. Snyder, K. Yi, U. Mallik, G. Hou, M. Herrero, and W. Dunnwoodie. This work is based on a long and fruitful collaboration with S. R. Cotanch. The work was partly supported by Spanish MCYT Grant No. FPA 2004- 02602 and U.S. DOE Grant No. DE-FG02-97ER41048
NO Fundacion del Amo-Universidad Complutense
NO MCYT Spain
NO U.S. DOE
DS Docta Complutense
RD 5 may 2024