• Corpus ID: 119313239

$(\alpha')^4$ Corrections in Holographic Large N_c QCD and $\pi - \pi$ Scattering

@inproceedings{RParthasarathy2007alpha4CI,
  title={\$(\alpha')^4\$ Corrections in Holographic Large N\_c QCD and \$\pi - \pi\$ Scattering},
  author={R.Parthasarathy and K.S.Viswanathan},
  year={2007}
}
We calculate the α′ corrections to the non-Abelian DBI action on the D8-brane in the holographic dual of large Nc QCD proposed by Sakai and Sugimoto. These give rise to higher derivative terms, in particular, four derivative contact terms for the pion field with the coupling uniquely determined. We calculate the pion-pion scattering amplitude near threshold. The results respecting unitarity are in qualitative agreement with the experimental values. e-mail: sarathy@cmi.ac.in e-mail: kviswana@sfu… 

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This biennial Review summarizes much of particle physics. Using data from previous editions, plus 2658 new measurements from 644 papers, we list, evaluate, and average measured properties of gauge