Pion interactions in the X(3872)

S. Fleming, M. Kusunoki, T. Mehen, U. Van Kolck

Research output: Contribution to journalArticle

144 Scopus citations

Abstract

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 D0D̄*0 and D*0D̄0. Since the hyperfine splitting of the D0 and D*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 Γ[X→D0D̄0π0].

Original languageEnglish (US)
Article number034006
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume76
Issue number3
DOIs
StatePublished - Aug 10 2007

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Pion interactions in the X(3872)'. Together they form a unique fingerprint.

  • Cite this