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 language | English (US) |
|---|---|
| Article number | 034006 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 76 |
| Issue number | 3 |
| DOIs | |
| State | Published - Aug 10 2007 |
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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 journal › Article
}
TY - JOUR
T1 - Pion interactions in the X(3872)
AU - Fleming, Sean P
AU - Kusunoki, M.
AU - Mehen, T.
AU - Van Kolck, Ubirajara
PY - 2007/8/10
Y1 - 2007/8/10
N2 - 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].
AB - 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].
UR - http://www.scopus.com/inward/record.url?scp=34547855452&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547855452&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.76.034006
DO - 10.1103/PhysRevD.76.034006
M3 - Article
AN - SCOPUS:34547855452
VL - 76
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 0556-2821
IS - 3
M1 - 034006
ER -