pi+ pi- atom in chiral perturbation theory - INSPIRE

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pi+ pi- atom in chiral perturbation theory

Mikhail A. Ivanov
(
- Dubna, JINR
)
,
Valery E. Lyubovitskij
(
- Dubna, JINR and
- Tomsk State U.
)
,
E.Z. Lipartia
(
- Dubna, JINR and
- Serpukhov, IHEP and
- Tbilisi State U.
)
,
A.G. Rusetsky
(
- Dubna, JINR and
- Serpukhov, IHEP and
- Tbilisi State U.
)

May, 1998

36 pages

Published in:

Phys.Rev.D 58 (1998) 094024

e-Print:

hep-ph/9805356 [hep-ph]

DOI:

10.1103/PhysRevD.58.094024

Report number:

QFT-TSU-98-28,
TSU-HEPI-98-01

View in:

ADS Abstract Service

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Abstract:

Hadronic (Pi+Pi-) atom is studied in the relativistic perturbative approach based on the Bethe-Salpeter equation. The general expression for the atom lifetime is derived. Lowest-order corrections to the relativistic Deser-type formula for the atom lifetime are evaluated within the Chiral Perturbation Theory.

Note:

36 pages, LaTeX-file (revtex.sty) Report-no: QFT-TSU-98-28, TSU-HEPI/98-01

pi+ pi-: bound state
perturbation theory: chiral
Bethe-Salpeter equation
relativistic
bound state: lifetime
bound state: wave function
correction
Feynman graph

References(34)

Figures(0)

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