HBCPT

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AcronymDefinition
HBCPTHeavy Baryon Chiral Perturbation Theory (physics)
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References in periodicals archive ?
We consider radiative [beta]-decay of the neutron in heavy baryon chiral perturbation theory. Nucleon-structure effects not encoded in the weak coupling constants [g.sub.A] and [g.sub.V] are determined at next-to-leading order in the chiral expansion, and enter at the O(0.5%)-level, making a sensitive test of the Dirac structure of the weak currents possible.
Here we describe a systematic analysis of neutron radiative [beta]-decay in the framework of heavy baryon chiral perturbation theory (HBCHPT) [7, 8, 9] and in the small scale expansion (SSE) [10], including all terms in O(1/M), i.e., at next-to-leading order (NLO) in the small parameter [epsilon] [6].
have calculated the photon energy spectrum and photon polarization in a heavy baryon chiral perturbation theory (HB[chi]PT) including explicit [DELTA] degrees of freedom [3].