A mesonic molecule is a set of two or more mesons bound together by the strong force.[1][2] Unlike baryonic molecules, which form the nuclei of all elements in nature save hydrogen-1, a mesonic molecule has yet to be definitively observed.[3] The X(3872) discovered in 2003 and the Z(4430) discovered in 2007 by the Belle experiment are the best candidates for such an observation.

See also


  1. ^ Trutnev, Yuri A. (1998). In The Intermissions: Collected Works On Research Into The Essentials Of Theoretical Physics In R. World Scientific. p. 106. ISBN 978-981-4495-65-3. Retrieved 23 June 2020.
  2. ^ Hughes, Vernon (2012). Muon Physics V3: Chemistry and Solids. Elsevier. p. 189. ISBN 978-0-323-15616-5. Retrieved 23 June 2020.
  3. ^ Jungmann, Klaus; Hughes, Vernon W.; Putlitz, Gisbert zu (2012). The Future of Muon Physics: Proceedings of the International Symposium on The Future of Muon Physics, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Federal Republic of Germany, 7–9 May, 1991. Springer Science & Business Media. ISBN 978-3-642-77960-2.