Update on B → D`ν form factor at zero-recoil using the Oktay-Kronfeld action

Tanmoy Bhattacharya, Rajan Gupta, Sungwoo Park, Yong Chull Jang, Jon A. Bailey, Benjamin J. Choi, Hwancheol Jeong, Seungyeob Jwa, Sunkyu Lee, Weonjong Lee, Jeonghwan Pak, Jaehoon Leem

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


We present an update on the calculation of B¯ →D`ν¯ semileptonic form factor at zero recoil using the Oktay-Kronfeld bottom and charm quarks on Nf = 2+1+1 flavor HISQ ensembles generated by the MILC collaboration. Preliminary results are given for two ensembles with a ≈ 0.12 and 0.09 fm and Mπ ≈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 ≈ 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.

Original languageEnglish
Article number283
JournalProceedings of Science
Publication statusPublished - 2018
Event36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, United States
Duration: 2018 Jul 222018 Jul 28

Bibliographical note

Funding Information:
collaboration, which are funded by the Office of Science of the U.S. Department of Energy, and (ii) the DAVID GPU clusters at Seoul National University. The research of W. Lee is supported by the Creative Research Initiatives Program (No. 2017013332) of the NRF grant funded by the Korean government (MEST). W. Lee acknowledges support from the KISTI supercomputing center through the strategic support program for the supercomputing application research (No. KSC-2016-C3-0072).

Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons.

All Science Journal Classification (ASJC) codes

  • General


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