Pion interactions in the X 3872

By Sean Fleming, M. Kusunoki, Thomas Mehen, U. van Kolck. 2007

133 citations recorded by the source corpus.

We consider pion interactions in an effective field theory of the narrow resonance X(3872), assuming it is a weakly bound molecule of the charm mesons D{sup 0}D*{sup 0} and D*{sup 0}D{sup 0}. Since the hyperfine splitting of the D{sup 0} and D*{sup 0} is only 7 MeV greater than the neutral pion mass, pions can be produced near threshold and are nonrelativistic. We show that pion exchange can be treated in perturbation theory and calculate the next-to-leading-order correction to the partial decay width {gamma}[X{yields}D{sup 0}D{sup 0}{pi}{sup 0}].

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/1bd17eac6c7d58a1b44ecb38ee9f4fb2dee5c014

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In Nuclear and High Energy Physics

1. Ulf-G. Meissner
2. C. Hanhart
3. Qiang Zhao
4. Feng-Kun Guo
5. Bing-song Zou
6. Qian Wang

Citations in the corpus

• Hadronic molecules (2017, background): “(Fleming et al., 2007), but, as is argued below, also contribute to X(3872) → D0D̄0π0 at NLO.”