Pion interactions in the X(3872)

Sean P Fleming, M. Kusunoki, T. Mehen, Ubirajara Van Kolck

Research output: Contribution to journalArticle

132 Citations (Scopus)

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

Fingerprint

Effective Field Theory
Mesons
Perturbation Theory
pions
Molecules
Decay
Partial
Calculate
Interaction
interactions
mesons
perturbation theory
thresholds
decay
molecules

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Pion interactions in the X(3872). / Fleming, Sean P; Kusunoki, M.; Mehen, T.; Van Kolck, Ubirajara.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 76, No. 3, 034006, 10.08.2007.

Research output: Contribution to journalArticle

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