Does $J/\psi \rightarrow \pi^{+} \pi^{-}$ fix the Electromagnetic Form Factor $F_{\pi}(t)$ at $t=M_{J/\psi}^2$?

J. Milana; S. Nussinov; M. G. Olsson

doi:10.1103/PhysRevLett.71.2533

Does $J/\psi \rightarrow \pi^{+} \pi^{-}$ fix the Electromagnetic Form Factor $F_{\pi}(t)$ at $t=M_{J/\psi}^2$?

High Energy Physics - Phenomenology 2009-10-22 v1

Authors: J. Milana , S. Nussinov , M. G. Olsson

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Abstract

We show that the $J/\psi \rightarrow \pi^{+} \pi^{-}$ decay is a reliable source of information for the electromagnetic form factor of the pion at $t=M_{J/\psi}^2=9.6 {\rm GeV}^2$ by using general arguments to estimate, or rather, put upper bounds on, the background processes that could spoil this extraction. We briefly comment on the significance of the resulting $F_{\pi}(M_{J/\psi}^2)$ .

Keywords

J/psi decay pion form factor electromagnetic form factor background estimation upper bounds

Cite

@article{arxiv.hep-ph/9307233,
  title  = {Does $J/\psi \rightarrow \pi^{+} \pi^{-}$ fix the Electromagnetic Form Factor $F_{\pi}(t)$ at $t=M_{J/\psi}^2$?},
  author = {J. Milana and S. Nussinov and M. G. Olsson},
  journal= {arXiv preprint arXiv:hep-ph/9307233},
  year   = {2009}
}

Comments

10 pages revtex manuscript, one figure--not included, U. of MD PP #94-001

Does $J/\psi \rightarrow \pi^{+} \pi^{-}$ fix the Electromagnetic Form Factor $F_{\pi}(t)$ at $t=M_{J/\psi}^2$?

Abstract

Keywords

Cite

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