Files
Document type
ArticleVersion
Accepted versionPublication date
Publication license
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/148743
Next-to-leading order effective field theory ΛN → NN potential in coordinate space
Journal Title
Director/Tutor
Journal ISSN
Volume Title
Related resource
Abstract
The potential in coordinate space for the ΛN→NNΛN→NN weak transition, which drives the weak decay of most hypernuclei, is derived within the effective field theory formalism up to next-to-leading order. This coordinate space potential allows us to discuss how the different contributions to the potential add up at the different scales. Explicit expressions are given for each two-pion-exchange diagram contributing to the interaction. The potential is also reorganized into spin and isospin operators, and the coefficient for each operator is given in analytical form and represented in coordinate space. The relevance of explicitly including the mass differences among the baryons appearing in the two-pion-exchange diagrams is also discussed in detail.
Subject
Subject (English)
Citation
Citation
PÉREZ-OBIOL CASTAÑEDA, Axel, et al. Next-to-leading order effective field theory ΛN → NN potential in coordinate space. Nuclear Physics A. 2016. Vol. 954, num. 213-241. ISSN 0375-9474. [consulted: 9 of August of 2026]. Available at: https://hdl.handle.net/2445/148743