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- Title
Galilean covariant effective theory for bound states of heavy mesons.
- Authors
Abreu, L. M.; de Montigny, M.; Santos, E. S.; Silva, D. F. C. A.
- Abstract
In this work we formulate the Galilei-covariant version of an effective theory containing nonrelativistic heavy mesons and pions as degrees of freedom. This manifestly Galilean covariant framework is based on a five-dimensional space–time that has been used in the description of covariant nonrelativistic physics. In this context, effective Lagrangian is introduced without ambiguities, containing kinetic and interaction terms that are naturally Galilean invariant. The leading-order scattering amplitudes and the properties of possible heavy-meson bound states are calculated and discussed.
- Subjects
GALILEAN relativity; MESONS; PIONS; COVARIANT field theories; LAGRANGIAN functions; SCATTERING amplitude (Physics)
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2018, Vol 33, Issue 30, pN.PAG
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X18501804