Light Meson Physics from Charm Decays at Fermilab E791

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We present recent results on light mesons based on Dalitz plot analyses of charm decays from Fermilab experiment E791. Scalar mesons are found to have large contributions to the decays studied, D{sup +} {yields} {pi}{sup +}{pi}{sup +} and D{sup +}, D{sub s}{sup +} {yields} {pi}{sup -}{pi}{sup +}{pi}{sup +}. From the K{pi}{pi} final state, we find good evidence for the existence of the light and broad k meson and we measure its mass and width. We also discuss recently published results on the 3{pi} final states, especially the measurement of the f{sub 0} parameters and the evidence for the {sigma} meson ... continued below

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930 Kilobytes pages

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Gobel, Carla November 9, 2001.

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We present recent results on light mesons based on Dalitz plot analyses of charm decays from Fermilab experiment E791. Scalar mesons are found to have large contributions to the decays studied, D{sup +} {yields} {pi}{sup +}{pi}{sup +} and D{sup +}, D{sub s}{sup +} {yields} {pi}{sup -}{pi}{sup +}{pi}{sup +}. From the K{pi}{pi} final state, we find good evidence for the existence of the light and broad k meson and we measure its mass and width. We also discuss recently published results on the 3{pi} final states, especially the measurement of the f{sub 0} parameters and the evidence for the {sigma} meson from D{sup +} {yields} {sigma}{pi}{sup +}. These results demonstrate the importance of charm decays as a new environment for the study of light meson physics.

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930 Kilobytes pages

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  • HADRON 2001, Protvino (RU), 08/2001

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  • Report No.: FERMILAB-Conf-01/332-E
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 788457
  • Archival Resource Key: ark:/67531/metadc719464

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  • November 9, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • April 1, 2016, 4:14 p.m.

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Gobel, Carla. Light Meson Physics from Charm Decays at Fermilab E791, article, November 9, 2001; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc719464/: accessed May 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.