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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2411.14300 |
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| _version_ | 1866929623804149760 |
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| author | Blum, Thomas Jay, William I. Jin, Luchang Kronfeld, Andreas S . Stewart, Douglas B. A. |
| author_facet | Blum, Thomas Jay, William I. Jin, Luchang Kronfeld, Andreas S . Stewart, Douglas B. A. |
| contents | Inclusive hadronic observables are ubiquitous in particle and nuclear physics. Computation of these observables using lattice QCD is challenging due the presence of a difficult inverse problem. As a stepping stone to more complicated observables, we report on progress to compute the smeared $R$~ratio with staggered quarks using the spectral reconstruction algorithm of Hansen, Lupo, and Tantalo. We compare staggered-quark results on two ensembles to domain-wall results on a single ensemble and to the Bernecker-Meyer parameterization. This work utilizes two ensembles generated by the MILC collaboration using highly improved staggered quarks and one ensemble generated by the RBC/UKQCD collaboration using domain-wall quarks. Possible strategies for controlling opposite-parity effects associated with staggered quarks are discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_14300 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Toward inclusive observables with staggered quarks: the smeared $R$~ratio Blum, Thomas Jay, William I. Jin, Luchang Kronfeld, Andreas S . Stewart, Douglas B. A. High Energy Physics - Lattice Inclusive hadronic observables are ubiquitous in particle and nuclear physics. Computation of these observables using lattice QCD is challenging due the presence of a difficult inverse problem. As a stepping stone to more complicated observables, we report on progress to compute the smeared $R$~ratio with staggered quarks using the spectral reconstruction algorithm of Hansen, Lupo, and Tantalo. We compare staggered-quark results on two ensembles to domain-wall results on a single ensemble and to the Bernecker-Meyer parameterization. This work utilizes two ensembles generated by the MILC collaboration using highly improved staggered quarks and one ensemble generated by the RBC/UKQCD collaboration using domain-wall quarks. Possible strategies for controlling opposite-parity effects associated with staggered quarks are discussed. |
| title | Toward inclusive observables with staggered quarks: the smeared $R$~ratio |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2411.14300 |