Ebert, M. ; Hammer, H.-W. ; Rusetsky, A. (2024)
An alternative scheme for effective range corrections in pionless EFT.
In: The European Physical Journal A : Hadrons and Nuclei, 2021, 57 (12)
doi: 10.26083/tuprints-00023576
Article, Secondary publication, Publisher's Version
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| Item Type: | Article |
|---|---|
| Type of entry: | Secondary publication |
| Title: | An alternative scheme for effective range corrections in pionless EFT |
| Language: | English |
| Date: | 5 April 2024 |
| Place of Publication: | Darmstadt |
| Year of primary publication: | December 2021 |
| Place of primary publication: | Berlin ; Heidelberg |
| Publisher: | Springer |
| Journal or Publication Title: | The European Physical Journal A : Hadrons and Nuclei |
| Volume of the journal: | 57 |
| Issue Number: | 12 |
| Collation: | 18 Seiten |
| DOI: | 10.26083/tuprints-00023576 |
| Corresponding Links: | |
| Origin: | Secondary publication DeepGreen |
| Abstract: | We discuss an alternative scheme for including effective range corrections in pionless effective field theory. The standard approach treats range terms as perturbative insertions in the T-matrix. In a finite volume this scheme can lead to singular behavior close to the unperturbed energies. We consider an alternative scheme that resums the effective range but expands the spurious pole of the T-matrix created by this resummation. We test this alternative expansion for several model potentials and observe good convergence. |
| Uncontrolled Keywords: | Nuclear Physics, Heavy Ions, Hadrons, Particle and Nuclear Physics, Nuclear Fusion |
| Identification Number: | Artikel-ID: 332 |
| Status: | Publisher's Version |
| URN: | urn:nbn:de:tuda-tuprints-235766 |
| Classification DDC: | 500 Science and mathematics > 530 Physics |
| Divisions: | 05 Department of Physics > Institute of Nuclear Physics > Theoretische Kernphysik > Effective Field Theories for Strong Interactions and Ultracold Atoms |
| Date Deposited: | 05 Apr 2024 11:13 |
| Last Modified: | 09 Apr 2024 09:02 |
| SWORD Depositor: | Deep Green |
| URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/23576 |
| PPN: | 516963821 |
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