Electric Polarizability of Charged Pions from nHYP Four-Point Functions
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866918391337451520 |
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| author | Luke, Benjamin Shiwakoti, Sudip Nadeem, Shayan Alexandru, Andrei Wilcox, Walter Lee, Frank X. |
| author_facet | Luke, Benjamin Shiwakoti, Sudip Nadeem, Shayan Alexandru, Andrei Wilcox, Walter Lee, Frank X. |
| contents | Understanding a hadron's electric and magnetic polarizabilities allows one to access internal structural information. Traditionally, the external field two-point function method has been used to calculate polarizabilities. However, recent work has demonstrated the effectiveness of using four-point functions for computing polarizabilities of charged and neutral hadrons. Our previous study on the electric polarizability of the charged pion used a quenched Wilson action on a lattice with pion mass from 1100 MeV to 370 MeV. In this work, we employ a number of improvements, including a dynamical action (nHYP), smaller pion masses (220 MeV and 315 MeV), and a variable lattice size in order to extrapolate to infinite volume. Preliminary results are presented. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_15231 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Electric Polarizability of Charged Pions from nHYP Four-Point Functions Luke, Benjamin Shiwakoti, Sudip Nadeem, Shayan Alexandru, Andrei Wilcox, Walter Lee, Frank X. High Energy Physics - Lattice Understanding a hadron's electric and magnetic polarizabilities allows one to access internal structural information. Traditionally, the external field two-point function method has been used to calculate polarizabilities. However, recent work has demonstrated the effectiveness of using four-point functions for computing polarizabilities of charged and neutral hadrons. Our previous study on the electric polarizability of the charged pion used a quenched Wilson action on a lattice with pion mass from 1100 MeV to 370 MeV. In this work, we employ a number of improvements, including a dynamical action (nHYP), smaller pion masses (220 MeV and 315 MeV), and a variable lattice size in order to extrapolate to infinite volume. Preliminary results are presented. |
| title | Electric Polarizability of Charged Pions from nHYP Four-Point Functions |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2603.15231 |