STI Publications - View Publication Form #13508
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Publication Information
| Title | Minimally nonlocal nucleon-nucleon potentials with chiral two-pion exchange including Delta resonances | ||||
| Abstract | We construct a coordinate-space chiral potential, including $\Delta$-isobar intermediate states in its two-pion-exchange component. The contact interactions entering at next-to-leading and next-to-next-to-next-to-leading orders ($Q^2$ and $Q^4$, respectively, $Q$ denoting generically the low momentum scale) are rearranged by Fierz transformations to yield terms at most quadratic in the relative momentum operator of the two nucleons. The low-energy constants multiplying these contact interactions are fitted to the 2013 Granada database, consisting of 2309 $pp$ and 2982 $np$ data (including, respectively, 148 and 218 normalizations) in the laboratory-energy range 0--300 MeV. For the total 5291 $pp$ and $np$ data in this range, we obtain a $\chi^2$/datum of roughly 1.3 for a set of three models characterized by long- and short-range cutoffs, $R_{\rm L}$ and $R_{\rm S}$ respectively, ranging from $(R_{\rm L},R_{\rm S})=(1.2,0.8)$ fm down to $(0.8,0.6)$ fm. The long-range (s | ||||
| Author(s) | Maria Piarulli, Luca Girlanda, Rocco Schiavilla, R. Navarro Perez, J. Amaro, Enrique Ruiz Arriola | ||||
| Publication Date | February 2015 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
| Funding Source | |||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review C |
| Refereed | Yes |
| Volume | 91 |
| Issue | 02 |
| Page(s) | 024003 |
Attachments/Datasets/DOI Link
| Document(s) |
1412.6446v3.pdf
(STI Document)
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| DOI Link | |
| Dataset(s) | (none) |
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