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Constraining the pΛ interaction from a combined analysis of scattering data and correlation functions
- Source :
- Physics Letters B, Vol 850, Iss , Pp 138550- (2024)
- Publication Year :
- 2024
- Publisher :
- Elsevier, 2024.
-
Abstract
- This work provides the first combined analysis of low-energy pΛ scattering, considering both cross section and correlation data. The obtained results establish the most stringent constraints to date on the two-body pΛ interaction, pointing to a weaker attraction than so far accepted. The best set of scattering lengths for the spin singlet and triplet are found to range from f0,f1=(2.1,1.56) to (3.34,1.18) fm. With a chiral NY potential fine-tuned to those scattering parameters, the in-medium properties of the Λ are explored and a potential depth of UΛ=−36.3±1.3(stat)−6.2+2.5(syst) MeV is found at nuclear matter saturation density.
- Subjects :
- Scattering
Femtoscopy
Chiral effective field theory
Physics
QC1-999
Subjects
Details
- Language :
- English
- ISSN :
- 03702693
- Volume :
- 850
- Issue :
- 138550-
- Database :
- Directory of Open Access Journals
- Journal :
- Physics Letters B
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.944c30398e04cf0afed5e2b3ef43e14
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.physletb.2024.138550