D semileptonic form factors and |Vcs(d)| from 2+1 flavor lattice QCD

Jon A. Bailey; A. Bazavov; A. X. El-Khadra; Steven Gottlieb; R. D. Jain; A. S. Kronfeld; R. S. Van de Water; R. Zhou

D semileptonic form factors and |V_cs(d₎| from 2+1 flavor lattice QCD

Jon A. Bailey, A. Bazavov, A. X. El-Khadra, Steven Gottlieb, R. D. Jain, A. S. Kronfeld, R. S. Van de Water, R. Zhou

Integrated Sciences and Engineering Division

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

Abstract

The measured partial widths of the semileptonic decays D → K`ν and D → π`ν can be combined with the form factors calculated on the lattice to extract the CKM matrix elements |V_cs| and |V_cd|. The lattice calculations can be checked by comparing the form factor shapes from the lattice and experiment. We have generated a sizable data set by using heavy clover quarks with the Fermilab interpretation for charm and asqtad staggered light quarks on 2+1 flavor MILC ensembles with lattice spacings of approximately 0.12, 0.09, 0.06, and 0.045 fm. Preliminary fits to staggered chiral perturbation theory suggest that we can reduce the uncertainties in the form factors at q² = 0 to below 5%.

Original language	English
Journal	Proceedings of Science
Volume	139
Publication status	Published - 2011
Event	29th International Symposium on Lattice Field Theory, Lattice 2011 - Squaw Valley, Lake Tahoe, United States Duration: 2011 Jul 10 → 2011 Jul 16

Bibliographical note

Funding Information:
Computations were carried out with resources provided by the USQCD Collaboration, Argonne Leadership Computing Facility, and National Energy Research Scientific Computing Center, which are funded by the Office of Science of the U.S. DOE; and with resources provided by the National Institute for Computational Science, Pittsburgh Supercomputer Center, San Diego Supercomputer Center, and Texas Advanced Computing Center, which are funded through the National Science Foundation’s Teragrid/XSEDE Program. This work was supported in part by the U.S. DOE under grant Nos. DE-FG02-91ER40661 (S.G.), No. DE-FG02-91ER40677 (R.D.J., A.X.K.). This manuscript was co-authored by employees of Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the U.S. DOE. R.S.V. acknowledges support from BNL via the Goldhaber Distinguished Fellowship. J.A.B. is supported by the Creative Research Initiatives program (3348-20090015) of the NRF grant funded by the Korean government (MEST). Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the U.S. DOE.

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Cite this

@article{78b511acec734e6486d8f6b6592bc8e7,

title = "D semileptonic form factors and |Vcs(d)| from 2+1 flavor lattice QCD",

abstract = "The measured partial widths of the semileptonic decays D → K`ν and D → π`ν can be combined with the form factors calculated on the lattice to extract the CKM matrix elements |Vcs| and |Vcd|. The lattice calculations can be checked by comparing the form factor shapes from the lattice and experiment. We have generated a sizable data set by using heavy clover quarks with the Fermilab interpretation for charm and asqtad staggered light quarks on 2+1 flavor MILC ensembles with lattice spacings of approximately 0.12, 0.09, 0.06, and 0.045 fm. Preliminary fits to staggered chiral perturbation theory suggest that we can reduce the uncertainties in the form factors at q2 = 0 to below 5%.",

author = "Bailey, {Jon A.} and A. Bazavov and El-Khadra, {A. X.} and Steven Gottlieb and Jain, {R. D.} and Kronfeld, {A. S.} and {Van de Water}, {R. S.} and R. Zhou",

note = "Funding Information: Computations were carried out with resources provided by the USQCD Collaboration, Argonne Leadership Computing Facility, and National Energy Research Scientific Computing Center, which are funded by the Office of Science of the U.S. DOE; and with resources provided by the National Institute for Computational Science, Pittsburgh Supercomputer Center, San Diego Supercomputer Center, and Texas Advanced Computing Center, which are funded through the National Science Foundation{\textquoteright}s Teragrid/XSEDE Program. This work was supported in part by the U.S. DOE under grant Nos. DE-FG02-91ER40661 (S.G.), No. DE-FG02-91ER40677 (R.D.J., A.X.K.). This manuscript was co-authored by employees of Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the U.S. DOE. R.S.V. acknowledges support from BNL via the Goldhaber Distinguished Fellowship. J.A.B. is supported by the Creative Research Initiatives program (3348-20090015) of the NRF grant funded by the Korean government (MEST). Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the U.S. DOE. Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 29th International Symposium on Lattice Field Theory, Lattice 2011 ; Conference date: 10-07-2011 Through 16-07-2011",

year = "2011",

language = "English",

volume = "139",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

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TY - JOUR

T1 - D semileptonic form factors and |Vcs(d)| from 2+1 flavor lattice QCD

AU - Bailey, Jon A.

AU - Bazavov, A.

AU - El-Khadra, A. X.

AU - Gottlieb, Steven

AU - Jain, R. D.

AU - Kronfeld, A. S.

AU - Van de Water, R. S.

AU - Zhou, R.

N1 - Funding Information: Computations were carried out with resources provided by the USQCD Collaboration, Argonne Leadership Computing Facility, and National Energy Research Scientific Computing Center, which are funded by the Office of Science of the U.S. DOE; and with resources provided by the National Institute for Computational Science, Pittsburgh Supercomputer Center, San Diego Supercomputer Center, and Texas Advanced Computing Center, which are funded through the National Science Foundation’s Teragrid/XSEDE Program. This work was supported in part by the U.S. DOE under grant Nos. DE-FG02-91ER40661 (S.G.), No. DE-FG02-91ER40677 (R.D.J., A.X.K.). This manuscript was co-authored by employees of Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the U.S. DOE. R.S.V. acknowledges support from BNL via the Goldhaber Distinguished Fellowship. J.A.B. is supported by the Creative Research Initiatives program (3348-20090015) of the NRF grant funded by the Korean government (MEST). Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the U.S. DOE. Publisher Copyright: © Copyright owned by the author(s).

PY - 2011

Y1 - 2011

N2 - The measured partial widths of the semileptonic decays D → K`ν and D → π`ν can be combined with the form factors calculated on the lattice to extract the CKM matrix elements |Vcs| and |Vcd|. The lattice calculations can be checked by comparing the form factor shapes from the lattice and experiment. We have generated a sizable data set by using heavy clover quarks with the Fermilab interpretation for charm and asqtad staggered light quarks on 2+1 flavor MILC ensembles with lattice spacings of approximately 0.12, 0.09, 0.06, and 0.045 fm. Preliminary fits to staggered chiral perturbation theory suggest that we can reduce the uncertainties in the form factors at q2 = 0 to below 5%.

AB - The measured partial widths of the semileptonic decays D → K`ν and D → π`ν can be combined with the form factors calculated on the lattice to extract the CKM matrix elements |Vcs| and |Vcd|. The lattice calculations can be checked by comparing the form factor shapes from the lattice and experiment. We have generated a sizable data set by using heavy clover quarks with the Fermilab interpretation for charm and asqtad staggered light quarks on 2+1 flavor MILC ensembles with lattice spacings of approximately 0.12, 0.09, 0.06, and 0.045 fm. Preliminary fits to staggered chiral perturbation theory suggest that we can reduce the uncertainties in the form factors at q2 = 0 to below 5%.

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M3 - Conference article

AN - SCOPUS:85053348122

SN - 1824-8039

VL - 139

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 29th International Symposium on Lattice Field Theory, Lattice 2011

Y2 - 10 July 2011 through 16 July 2011

ER -

D semileptonic form factors and |V_cs(d₎| from 2+1 flavor lattice QCD

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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