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Constraining form factors with the method of unitarity bounds

Ananthanarayan, B and Caprini, I (2012) Constraining form factors with the method of unitarity bounds. In: 5th DAE-BRNS Workshop on Hadron Physics, Hadron 2011, 31 October 2011- 4 November 2011, Mumbai, India.

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Official URL: http://dx.doi.org/10.1088/1742-6596/374/1/012011


The availability of a reliable bound on an integral involving the square of the modulus of a form factor on the unitarity cut allows one to constrain the form factor at points inside the analyticity domain and its shape parameters, and also to isolate domains on the real axis and in the complex energy plane where zeros are excluded. In this lecture note, we review the mathematical techniques of this formalism in its standard form, known as the method of unitarity bounds, and recent developments which allow us to include information on the phase and modulus along a part of the unitarity cut. We also provide a brief summary of some results that we have obtained in the recent past, which demonstrate the usefulness of the method for precision predictions on the form factors.

Item Type: Conference Paper
Publication: Journal of Physics: Conference Series
Publisher: Institute of Physics
Additional Information: Copyright for this article belongs to the Institute of Physics
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 13 Sep 2012 06:47
Last Modified: 15 Oct 2012 14:36
URI: http://eprints.iisc.ac.in/id/eprint/45044

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