Unparticle Self-Interactions

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Unparticle Self-Interactions

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Title: Unparticle Self-Interactions
Author: Georgi, Howard; Kats, Yevgeny

Note: Order does not necessarily reflect citation order of authors.

Citation: Georgi, Howard, and Yevgeny Kats. Forthcoming. Unparticle self-interactions. Journal of High Energy Physics.
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Abstract: We develop techniques for studying the effects of self-interactions in the conformal sector of an unparticle model. Their physics is encoded in the higher n-point functions of the conformal theory. We study inclusive processes and argue that the inclusive production
of unparticle stuff in standard model processes due to the unparticle self-interactions
can be decomposed using the conformal partial wave expansion and its generalizations into a sum over contributions from the production of various kinds of unparticle stuff, corresponding to different primary conformal operators. Such processes typically involve the
production of unparticle stuff associated with operators other than those to which the standard model couples directly. Thus just as interactions between particles allow scattering processes to produce new particles in the final state, so unparticle self-interactions cause the production of various kinds of unparticle stuff. We discuss both inclusive and exclusive methods for computing these processes. The resulting picture, we believe, is a step towards
understanding what unparticle stuff “looks like” because it is quite analogous to way we describe the production and scattering of ordinary particles in quantum field theory, with the primary conformal operators playing the role of particles and the coefficients in the conformal partial wave expansion (and its generalization to include more fields) playing the role of amplitudes. We exemplify our methods in the 2D toy model that we discussed previously in which the Banks-Zaks theory is exactly solvable.
Published Version: http://www.springer.com/new+%26+forthcoming+titles+%28default%29/journal/13130
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4317739
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