N Delta - Transition Form Factors at Low Momentum Transfer

G. C. Gellas; T. R. Hemmert; C. N. Ktorides; G. I. Poulis

N Delta - Transition Form Factors at Low Momentum Transfer

高能物理 - 唯象学 2007-05-23 v1

作者: G. C. Gellas , T. R. Hemmert , C. N. Ktorides , G. I. Poulis

摘要

The three complex form factors entering the $\Delta\to N\gamma^\ast$ vertex are calculated to ${\cal O}(\epsilon^3)$ in the framework of a chiral effective theory with explicit $\Delta$ (1232) degrees of freedom. Furthermore, the role of presently unknown low energy constants that affect the values of EMR and CMR is elucidated.

引用

@article{arxiv.hep-ph/9811231,
  title  = {N Delta - Transition Form Factors at Low Momentum Transfer},
  author = {G. C. Gellas and T. R. Hemmert and C. N. Ktorides and G. I. Poulis},
  journal= {arXiv preprint arXiv:hep-ph/9811231},
  year   = {2007}
}

备注

5 pages, 3 figures, Oral contribution given at the 8th International Conference on the Structure of Baryons (Baryons '98), Bonn, Germany, Sept. 22-26, 1998

N Delta - Transition Form Factors at Low Momentum Transfer

摘要

引用

备注

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