Baryon masses with C-periodic boundary conditions
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arXiv
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| Autores principales: | , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866911724014141440 |
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| author | Altherr, Anian Campos, Isabel Gruber, Roman Harris, Tim Margari, Francesca Marinković, Marina Krstić Parato, Letizia Patella, Agostino Rosso, Sara Tavella, Paola |
| author_facet | Altherr, Anian Campos, Isabel Gruber, Roman Harris, Tim Margari, Francesca Marinković, Marina Krstić Parato, Letizia Patella, Agostino Rosso, Sara Tavella, Paola |
| contents | Isospin-breaking corrections pose a significant challenge to lattice simulations, both because of the splitting between the up and down quark masses and, in particular, the need to include QED effects. The RC* collaboration has developed the openQxD code, based on openQCD, which enables fully dynamical QCD+QED simulations through the implementation of C-periodic boundary conditions. We use this code to measure baryon masses, with a special focus on the {Ω^-} baryon mass, whose precise determination is especially important since it has been used to set the scale of lattice simulations. Due to the use of C-periodic boundary conditions, the two-point function of the {Ω^-} baryon gets additional partially connected contributions, which vanish in the infinite-volume limit and which we are computing for the first time. We will present preliminary results for baryon masses obtained on QCD ensembles with C-periodic boundary conditions, at an unphysical pion mass of approximately 400 MeV. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_23910 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Baryon masses with C-periodic boundary conditions Altherr, Anian Campos, Isabel Gruber, Roman Harris, Tim Margari, Francesca Marinković, Marina Krstić Parato, Letizia Patella, Agostino Rosso, Sara Tavella, Paola High Energy Physics - Lattice Isospin-breaking corrections pose a significant challenge to lattice simulations, both because of the splitting between the up and down quark masses and, in particular, the need to include QED effects. The RC* collaboration has developed the openQxD code, based on openQCD, which enables fully dynamical QCD+QED simulations through the implementation of C-periodic boundary conditions. We use this code to measure baryon masses, with a special focus on the {Ω^-} baryon mass, whose precise determination is especially important since it has been used to set the scale of lattice simulations. Due to the use of C-periodic boundary conditions, the two-point function of the {Ω^-} baryon gets additional partially connected contributions, which vanish in the infinite-volume limit and which we are computing for the first time. We will present preliminary results for baryon masses obtained on QCD ensembles with C-periodic boundary conditions, at an unphysical pion mass of approximately 400 MeV. |
| title | Baryon masses with C-periodic boundary conditions |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2602.23910 |