The K^-^+ S-wave from the D^+ K^-^+^+ decay

doi:10.1016/j.physletb.2009.09.057

The K^-^+ S-wave from the D^+ K^-^+^+ decay

by The Focus Collaboration

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Focus (2009)

Volume: 681, Pages: 13

DOI: 10.1016/j.physletb.2009.09.057
arXiv: 0905.4846

Available from arxiv.org

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Abstract

Using data from FOCUS (E831) experiment at Fermilab, we present a model independent partial-wave analysis of the K -pi + S-wave amplitude from the decay D + to K -pi +pi +. The S-wave is a generic complex function to be determined directly from the data fit. The P- and D-waves are parameterized by a sum of Breit-Wigner amplitudes. The measurement of the S-wave amplitude covers the whole elastic range of the K -pi + system.