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| Main Authors: | , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/1812.07675 |
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| _version_ | 1866913604610031616 |
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| author | Bhattacharya, Tanmoy Gupta, Rajan Park, Sungwoo Jang, Yong-Chull Bailey, Jon A. Choi, Benjamin J. Jeong, Hwancheol Jwa, Seungyeob Lee, Sunkyu Lee, Weonjong Pak, Jeonghwan Leem, Jaehoon |
| author_facet | Bhattacharya, Tanmoy Gupta, Rajan Park, Sungwoo Jang, Yong-Chull Bailey, Jon A. Choi, Benjamin J. Jeong, Hwancheol Jwa, Seungyeob Lee, Sunkyu Lee, Weonjong Pak, Jeonghwan Leem, Jaehoon |
| contents | We present an update on the calculation of $\bar{B}\to D^\ast \ell \barν$ semileptonic form factor at zero recoil using the Oktay-Kronfeld bottom and charm quarks on $N_f=2+1+1$ flavor HISQ ensembles generated by the MILC collaboration. Preliminary results are given for two ensembles with $a\approx 0.12$ and $0.09$ fm and $M_π\approx 310$ MeV. Calculations have been done with a number of valence quark masses, and the dependence of the form factor on them is investigated on the $a\approx 0.12$ fm ensemble. The excited state is controlled by using multistate fits to the three-point correlators measured at 4--6 source-sink separations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1812_07675 |
| institution | arXiv |
| publishDate | 2018 |
| record_format | arxiv |
| spellingShingle | Update on $B\to D^\ast \ell ν$ form factor at zero-recoil using the Oktay-Kronfeld action Bhattacharya, Tanmoy Gupta, Rajan Park, Sungwoo Jang, Yong-Chull Bailey, Jon A. Choi, Benjamin J. Jeong, Hwancheol Jwa, Seungyeob Lee, Sunkyu Lee, Weonjong Pak, Jeonghwan Leem, Jaehoon High Energy Physics - Lattice We present an update on the calculation of $\bar{B}\to D^\ast \ell \barν$ semileptonic form factor at zero recoil using the Oktay-Kronfeld bottom and charm quarks on $N_f=2+1+1$ flavor HISQ ensembles generated by the MILC collaboration. Preliminary results are given for two ensembles with $a\approx 0.12$ and $0.09$ fm and $M_π\approx 310$ MeV. Calculations have been done with a number of valence quark masses, and the dependence of the form factor on them is investigated on the $a\approx 0.12$ fm ensemble. The excited state is controlled by using multistate fits to the three-point correlators measured at 4--6 source-sink separations. |
| title | Update on $B\to D^\ast \ell ν$ form factor at zero-recoil using the Oktay-Kronfeld action |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/1812.07675 |