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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/2402.14924 |
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| _version_ | 1866910341502337024 |
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| author | Jeong, Hwancheol DeTar, Carleton El-Khadra, Aida Gámiz, Elvira Gelzer, Zechariah Gottlieb, Steven Jay, William Kronfeld, Andreas Lytle, Andrew Vaquero, Alejandro |
| author_facet | Jeong, Hwancheol DeTar, Carleton El-Khadra, Aida Gámiz, Elvira Gelzer, Zechariah Gottlieb, Steven Jay, William Kronfeld, Andreas Lytle, Andrew Vaquero, Alejandro |
| contents | We compute the vector, scalar, and tensor form factors for the $B\to π$, $B\to K$, and $B_s\to K$ amplitudes, which are needed to describe semileptonic $B$-meson decay rates for both the charged and neutral current cases. We use the highly improved staggered quark (HISQ) action for the sea and light valence quarks. The bottom quark is described by the clover action in the Fermilab interpretation. Simulations are carried out on $N_f = 2+1+1$ MILC HISQ ensembles at approximate lattice spacings from $0.15$ fm down to $0.057$ fm. We present blinded preliminary results for the form factors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_14924 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Form factors for semileptonic B-decays with HISQ light quarks and clover b-quarks in Fermilab interpretation Jeong, Hwancheol DeTar, Carleton El-Khadra, Aida Gámiz, Elvira Gelzer, Zechariah Gottlieb, Steven Jay, William Kronfeld, Andreas Lytle, Andrew Vaquero, Alejandro High Energy Physics - Lattice We compute the vector, scalar, and tensor form factors for the $B\to π$, $B\to K$, and $B_s\to K$ amplitudes, which are needed to describe semileptonic $B$-meson decay rates for both the charged and neutral current cases. We use the highly improved staggered quark (HISQ) action for the sea and light valence quarks. The bottom quark is described by the clover action in the Fermilab interpretation. Simulations are carried out on $N_f = 2+1+1$ MILC HISQ ensembles at approximate lattice spacings from $0.15$ fm down to $0.057$ fm. We present blinded preliminary results for the form factors. |
| title | Form factors for semileptonic B-decays with HISQ light quarks and clover b-quarks in Fermilab interpretation |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2402.14924 |