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arXiv · 1402.0741

Electromagnetic transition form factors of the Roper resonance in effective field theory

T. Bauer·S. Scherer·L. Tiator
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Abstract

We analyze the form factors of the electromagnetic nucleon-to-Roper-resonance transition in the framework of low-energy effective field theory. A systematic power-counting procedure is generated by applying the complex-mass scheme. Within this power counting we calculate the form factors to next-to-next-to-leading order and fit the results to empirical data.

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T. Bauer, S. Scherer, L. Tiator. 2014-02-04. Electromagnetic transition form factors of the Roper resonance in effective field theory. https://doi.org/10.1103/physrevc.90.015201

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