Form factors for semileptonic B-decays with HISQ light quarks and clover b-quarks in Fermilab interpretation
Conference
·
OSTI ID:2323485
- Indiana U.
- Utah U.
- Tata Inst.; Bielefeld U.; CERN; Kaiserslautern U.; Illinois U., Urbana
- CAFPE, Granada; Granada U., Theor. Phys. Astrophys.
- MIT, Cambridge, CTP
- Fermilab
- Zaragoza U.
We compute the vector, scalar, and tensor form factors for the $$B\to \pi$$, $$B\to K$$, 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.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 2323485
- Report Number(s):
- FERMILAB-CONF-24-0077-T; arXiv:2402.14924; oai:inspirehep.net:2761335
- Country of Publication:
- United States
- Language:
- English
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