Testing a new method for scattering in finite volume in the $$\phi ^4$$ ϕ 4 theory
Abstract We test an alternative proposal by Bruno and Hansen (J High Energy Phys 2021(6), https://doi.org/10.1007/JHEP06(2021)043 , 2021) to extract the scattering length from lattice simulations in a finite volume. For this, we use a scalar $$\phi ^4$$ ϕ 4 theory with two mass nondegenerate particl...
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2021
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oai:doaj.org-article:46ebb239b4684d8182ac1368e439b3ad2021-11-28T12:11:45ZTesting a new method for scattering in finite volume in the $$\phi ^4$$ ϕ 4 theory10.1140/epjc/s10052-021-09830-11434-60441434-6052https://doaj.org/article/46ebb239b4684d8182ac1368e439b3ad2021-11-01T00:00:00Zhttps://doi.org/10.1140/epjc/s10052-021-09830-1https://doaj.org/toc/1434-6044https://doaj.org/toc/1434-6052Abstract We test an alternative proposal by Bruno and Hansen (J High Energy Phys 2021(6), https://doi.org/10.1007/JHEP06(2021)043 , 2021) to extract the scattering length from lattice simulations in a finite volume. For this, we use a scalar $$\phi ^4$$ ϕ 4 theory with two mass nondegenerate particles and explore various strategies to implement this new method. We find that the results are comparable to those obtained from the Lüscher method, with somewhat smaller statistical uncertainties at larger volumes.Marco GarofaloFernando Romero-LópezAkaki RusetskyCarsten UrbachSpringerOpenarticleAstrophysicsQB460-466Nuclear and particle physics. Atomic energy. RadioactivityQC770-798ENEuropean Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-5 (2021) |
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DOAJ |
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DOAJ |
| language |
EN |
| topic |
Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 |
| spellingShingle |
Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Marco Garofalo Fernando Romero-López Akaki Rusetsky Carsten Urbach Testing a new method for scattering in finite volume in the $$\phi ^4$$ ϕ 4 theory |
| description |
Abstract We test an alternative proposal by Bruno and Hansen (J High Energy Phys 2021(6), https://doi.org/10.1007/JHEP06(2021)043 , 2021) to extract the scattering length from lattice simulations in a finite volume. For this, we use a scalar $$\phi ^4$$ ϕ 4 theory with two mass nondegenerate particles and explore various strategies to implement this new method. We find that the results are comparable to those obtained from the Lüscher method, with somewhat smaller statistical uncertainties at larger volumes. |
| format |
article |
| author |
Marco Garofalo Fernando Romero-López Akaki Rusetsky Carsten Urbach |
| author_facet |
Marco Garofalo Fernando Romero-López Akaki Rusetsky Carsten Urbach |
| author_sort |
Marco Garofalo |
| title |
Testing a new method for scattering in finite volume in the $$\phi ^4$$ ϕ 4 theory |
| title_short |
Testing a new method for scattering in finite volume in the $$\phi ^4$$ ϕ 4 theory |
| title_full |
Testing a new method for scattering in finite volume in the $$\phi ^4$$ ϕ 4 theory |
| title_fullStr |
Testing a new method for scattering in finite volume in the $$\phi ^4$$ ϕ 4 theory |
| title_full_unstemmed |
Testing a new method for scattering in finite volume in the $$\phi ^4$$ ϕ 4 theory |
| title_sort |
testing a new method for scattering in finite volume in the $$\phi ^4$$ ϕ 4 theory |
| publisher |
SpringerOpen |
| publishDate |
2021 |
| url |
https://doaj.org/article/46ebb239b4684d8182ac1368e439b3ad |
| work_keys_str_mv |
AT marcogarofalo testinganewmethodforscatteringinfinitevolumeinthephi4ph4theory AT fernandoromerolopez testinganewmethodforscatteringinfinitevolumeinthephi4ph4theory AT akakirusetsky testinganewmethodforscatteringinfinitevolumeinthephi4ph4theory AT carstenurbach testinganewmethodforscatteringinfinitevolumeinthephi4ph4theory |
| _version_ |
1718408135966720000 |