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From correlation functions to event shapes

Abstract We present a new approach to computing event shape distributions or, more precisely, charge flow correlations in a generic conformal field theory (CFT). These infrared finite observables are familiar from collider physics studies and describe the angular distribution of global charges in outgoing radiation created from the vacuum by some source. The charge flow correlations can be expressed in terms of Wightman correlation functions in a certain limit. We explain how to compute these quantities starting from their Euclidean analogues by means of a nontrivial analytic continuation which, in the framework of CFT, can be performed elegantly in Mellin space. The relation between the charge flow correlations and Euclidean correlation functions c... (more)
Created Date 2014-04-30
Contributor Belitsky, Andrei (ASU author) / Hohenegger, S. (Author) / Korchemsky, G. P. (Author) / Sokatchev, E. (Author) / Zhiboedov, A. (Author) / College of Liberal Arts and Sciences / Department of Physics
Type Text
Extent 39 pages
Language English
Identifier DOI: 10.1016/j.nuclphysb.2014.04.020 / ISSN: 0550-3213 / ISSN: 1873-1562
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Citation Belitsky, A., Hohenegger, S., Korchemsky, G., Sokatchev, E., & Zhiboedov, A. (2014). From correlation functions to event shapes. Nuclear Physics B, 884, 305-343. doi:10.1016/j.nuclphysb.2014.04.020
Collaborating Institutions ASU Library
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