Muon capture in deuterium

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F09%3A00179841" target="_blank" >RIV/68407700:21670/09:00179841 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Muon capture in deuterium

Original language description

Model dependence of the capture rates of the negative muon capture in deuterium is studied starting from potential models and the weak two-body meson exchange currents constructed in the tree approximation and also from an effective field theory. The tree one-boson exchange currents are derived from the hard pion chiral Lagrangians of the N????a₁ system. If constructed in conjunction with the one-boson exchange potentials, the capture rates can be calculated consistently. On the other hand, the effective field theory currents, constructed within the heavy baryon chiral perturbation theory, contain a low energy constant <i>d</i>^{^}^R that cannot be extracted from data at the one-particle level nor determined from the firstprinciples. Comparative analysis of the results for the doublet transition rate allows us to extract the constant <i>d</i>^{^}^R.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

BF - Elementary particle theory and high energy physics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů