Form factors for semi-leptonic B decays

Ran Zhou; Steven Gottlieb; Jon A. Bailey; Daping Du; Aida X. El-Khadra; R. D. Jain; Andreas S. Kronfeld; Ruth S. Van De Water; Yuzhi Liu; Yannick Meurice

Form factors for semi-leptonic B decays

Ran Zhou, Steven Gottlieb, Jon A. Bailey, Daping Du, Aida X. El-Khadra, R. D. Jain, Andreas S. Kronfeld, Ruth S. Van De Water, Yuzhi Liu, Yannick Meurice

Integrated Sciences and Engineering Division

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

We report on form factors for the B → Kl+l- semi-leptonic decay process. We use several lattice spacings from a = 0.12 fm down to 0.06 fm and a variety of dynamical quark masses with 2+1 flavors of asqtad quarks provided by the MILC Collaboration. These ensembles allow good control of the chiral and continuum extrapolations. The b-quark is treated as a clover quark with the Fermilab interpretation. We update our results for fk and f, or, equivalently, f+ and f0. In addition, we present new results for the tensor form factor fT . Model independent results are obtained based upon the z-expansion.

Original language	English
Article number	105
Journal	Proceedings of Science
Volume	Part F130497
Publication status	Published - 2012
Event	30th International Symposium on Lattice Field Theory, Lattice 2012 - Cairns, Australia Duration: 2012 Jun 24 → 2012 Jun 29

Bibliographical note

Funding Information:
Advanced Computing Center, which are funded through the National Science Foundation’s Tera-grid/XSEDE Program. This work was supported in part by the U.S. Department of Energy under Grants No. DE-FG02-91ER40661 (S.G., R.Z.), No. DE-FG02-91ER40677 (D.D., R.D.J., A.X.K.), No. DE-FG02-91ER40664 (Y.L., Y.M.). Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. J.A.B. is supported by the Creative Research Initiatives program (2012-0000241) of the NRF grant funded by the Korean government (MEST).

Funding Information:
Computations for this work were carried out with resources provided by the USQCD Collaboration, the Argonne Leadership Computing Facility, and the National Energy Research Scientific Computing Center, which are funded by the Office of Science of the U.S. Department of Energy; and with resources provided by the National Institute for Computational Science, and the Texas

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General

Cite this

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title = "Form factors for semi-leptonic B decays",

abstract = "We report on form factors for the B → Kl+l- semi-leptonic decay process. We use several lattice spacings from a = 0.12 fm down to 0.06 fm and a variety of dynamical quark masses with 2+1 flavors of asqtad quarks provided by the MILC Collaboration. These ensembles allow good control of the chiral and continuum extrapolations. The b-quark is treated as a clover quark with the Fermilab interpretation. We update our results for fk and f, or, equivalently, f+ and f0. In addition, we present new results for the tensor form factor fT . Model independent results are obtained based upon the z-expansion.",

author = "Ran Zhou and Steven Gottlieb and Bailey, {Jon A.} and Daping Du and El-Khadra, {Aida X.} and Jain, {R. D.} and Kronfeld, {Andreas S.} and {Van De Water}, {Ruth S.} and Yuzhi Liu and Yannick Meurice",

note = "Funding Information: Advanced Computing Center, which are funded through the National Science Foundation{\textquoteright}s Tera-grid/XSEDE Program. This work was supported in part by the U.S. Department of Energy under Grants No. DE-FG02-91ER40661 (S.G., R.Z.), No. DE-FG02-91ER40677 (D.D., R.D.J., A.X.K.), No. DE-FG02-91ER40664 (Y.L., Y.M.). Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. J.A.B. is supported by the Creative Research Initiatives program (2012-0000241) of the NRF grant funded by the Korean government (MEST). Funding Information: Computations for this work were carried out with resources provided by the USQCD Collaboration, the Argonne Leadership Computing Facility, and the National Energy Research Scientific Computing Center, which are funded by the Office of Science of the U.S. Department of Energy; and with resources provided by the National Institute for Computational Science, and the Texas; 30th International Symposium on Lattice Field Theory, Lattice 2012 ; Conference date: 24-06-2012 Through 29-06-2012",

year = "2012",

language = "English",

volume = "Part F130497",

journal = "Proceedings of Science",

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TY - JOUR

T1 - Form factors for semi-leptonic B decays

AU - Zhou, Ran

AU - Gottlieb, Steven

AU - Bailey, Jon A.

AU - Du, Daping

AU - El-Khadra, Aida X.

AU - Jain, R. D.

AU - Kronfeld, Andreas S.

AU - Van De Water, Ruth S.

AU - Liu, Yuzhi

AU - Meurice, Yannick

N1 - Funding Information: Advanced Computing Center, which are funded through the National Science Foundation’s Tera-grid/XSEDE Program. This work was supported in part by the U.S. Department of Energy under Grants No. DE-FG02-91ER40661 (S.G., R.Z.), No. DE-FG02-91ER40677 (D.D., R.D.J., A.X.K.), No. DE-FG02-91ER40664 (Y.L., Y.M.). Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. J.A.B. is supported by the Creative Research Initiatives program (2012-0000241) of the NRF grant funded by the Korean government (MEST). Funding Information: Computations for this work were carried out with resources provided by the USQCD Collaboration, the Argonne Leadership Computing Facility, and the National Energy Research Scientific Computing Center, which are funded by the Office of Science of the U.S. Department of Energy; and with resources provided by the National Institute for Computational Science, and the Texas

PY - 2012

Y1 - 2012

N2 - We report on form factors for the B → Kl+l- semi-leptonic decay process. We use several lattice spacings from a = 0.12 fm down to 0.06 fm and a variety of dynamical quark masses with 2+1 flavors of asqtad quarks provided by the MILC Collaboration. These ensembles allow good control of the chiral and continuum extrapolations. The b-quark is treated as a clover quark with the Fermilab interpretation. We update our results for fk and f, or, equivalently, f+ and f0. In addition, we present new results for the tensor form factor fT . Model independent results are obtained based upon the z-expansion.

AB - We report on form factors for the B → Kl+l- semi-leptonic decay process. We use several lattice spacings from a = 0.12 fm down to 0.06 fm and a variety of dynamical quark masses with 2+1 flavors of asqtad quarks provided by the MILC Collaboration. These ensembles allow good control of the chiral and continuum extrapolations. The b-quark is treated as a clover quark with the Fermilab interpretation. We update our results for fk and f, or, equivalently, f+ and f0. In addition, we present new results for the tensor form factor fT . Model independent results are obtained based upon the z-expansion.

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M3 - Conference article

AN - SCOPUS:85030111388

SN - 1824-8039

VL - Part F130497

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 105

T2 - 30th International Symposium on Lattice Field Theory, Lattice 2012

Y2 - 24 June 2012 through 29 June 2012

ER -

Form factors for semi-leptonic B decays

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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