Muon capture in deuterium

Kód výsledku v 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>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Muon capture in deuterium

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Muon capture in deuterium

Popis výsledku anglicky

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.

Druh

O - Ostatní výsledky

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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