Abstract

The ΛNNN interaction, the main responsible for the decay of heavy hypernuclei, is described within the effective field theory (EFT) framework. The EFT is developed up to (&vecq;2), where &vecq; is the transferred momentum between the interacting baryons. Numerical values for the leading order low-energy constants are obtained by two means. First, from a fit to the hypernuclear decay observables, and second, by comparing the EFT to the one-meson-exchange model describing the same interaction. All the two-pion exchange diagrams entering at the next-to-leading in the EFT have been calculated.

Details

Title
Non-mesonic weak decay of hypernuclei with effective field theory
Author
Pérez-Obiol, A 1 ; Entem, D R 2 ; Juliá-Díaz, B 3 ; Parreño, A 1 

 Departament d'Estructura i Constituents de la Matèria, Institut de Ciències del Cosmos (ICC), Universitat de Barcelona, Martí i Franquès 1, E-08028 Barcelona, Spain 
 Grupo de Física Nuclear and IUFFyM, Universidad de Salamanca, E-37008 Salamanca, Spain 
 Departament d'Estructura i Constituents de la Matèria, Institut de Ciències del Cosmos (ICC), Universitat de Barcelona, Martí i Franquès 1, E-08028 Barcelona, Spain; ICFO – Institut de Ciències Fotòniques, Av. Carl Friedrich Gauss 3, E-08860 Castelldefels (Barcelona), Spain 
Publication year
2014
Publication date
Apr 2014
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2576639022
Copyright
© 2014. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.