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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.00729 |
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| _version_ | 1866912606716952576 |
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| author | Zhang, Rui Grebe, Anthony V. Hackett, Daniel C. Wagman, Michael L. Zhao, Yong |
| author_facet | Zhang, Rui Grebe, Anthony V. Hackett, Daniel C. Wagman, Michael L. Zhao, Yong |
| contents | We propose to use interpolating operators for lattice quantum chromodyanmics (QCD) calculations of highly-boosted pions and nucleons with kinematically-enhanced ground-state overlap factors at large momentum. Because this kinematic enhancement applies to the signal but not the variance of the correlation function, these interpolating operators can achieve better signal-to-noise ratios at large momentum. We perform proof-of-principle calculations with boosted pions and nucleons using close-to-physical and larger quark masses to explore the utility of our proposal. Results for effective energies and matrix elements, as well as Lanczos ground-state energy estimators, are consistent with theoretical expectations for signal-to-noise improvement at large momenta. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_00729 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Kinematically-enhanced interpolating operators for boosted hadrons Zhang, Rui Grebe, Anthony V. Hackett, Daniel C. Wagman, Michael L. Zhao, Yong High Energy Physics - Lattice High Energy Physics - Phenomenology We propose to use interpolating operators for lattice quantum chromodyanmics (QCD) calculations of highly-boosted pions and nucleons with kinematically-enhanced ground-state overlap factors at large momentum. Because this kinematic enhancement applies to the signal but not the variance of the correlation function, these interpolating operators can achieve better signal-to-noise ratios at large momentum. We perform proof-of-principle calculations with boosted pions and nucleons using close-to-physical and larger quark masses to explore the utility of our proposal. Results for effective energies and matrix elements, as well as Lanczos ground-state energy estimators, are consistent with theoretical expectations for signal-to-noise improvement at large momenta. |
| title | Kinematically-enhanced interpolating operators for boosted hadrons |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2501.00729 |