Semileptonic D → π/K and B → π/D decays in 2+1 flavor lattice QCD

M. Okamoto; C. Aubin; C. Bernard; C. DeTar; M. Di Pierro; A. X. El-Khadra; Steven Gottlieb; E. B. Gregory; U. M. Heller; J. Hetrick; A. S. Kronfeld; P. B. Mackenzie; D. P. Menscher; M. Nobes; M. B. Oktay; J. Osborn; J. N. Simone; R. Sugar; D. Toussaint; H. D. Trottier

doi:10.1016/j.nuclphysbps.2004.11.151

Semileptonic D → π/K and B → π/D decays in 2+1 flavor lattice QCD

M. Okamoto
, C. Aubin
, C. Bernard
, C. DeTar
, M. Di Pierro
, A. X. El-Khadra
, Steven Gottlieb
, E. B. Gregory
, U. M. Heller
, J. Hetrick
, A. S. Kronfeld
, P. B. Mackenzie
, D. P. Menscher
, M. Nobes
, M. B. Oktay
, J. Osborn
, J. N. Simone
, R. Sugar
, D. Toussaint
, H. D. Trottier

Physics

Research output: Contribution to journal › Article › peer-review

173 Scopus citations

Abstract

We present results for form factors of semileptonic decays of D and B mesons in 2 + 1 flavor lattice QCD using the MILC gauge configurations. With an improved staggered action for light quarks, we successfully reduce the systematic error from the chiral extrapolation. The results for D decays are in agreement with experimental ones. The results for B decays are preliminary. Combining our results with experimental branching ratios, we then obtain the CKM matrix elements V_cd , V_cs , V_cb and V_ub . We also check CKM unitarity, for the first time, using only lattice QCD as the theoretical input.

Original language	English (US)
Pages (from-to)	461-463
Number of pages	3
Journal	Nuclear Physics B - Proceedings Supplements
Volume	140
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.nuclphysbps.2004.11.151
State	Published - Mar 2005

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics

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10.1016/j.nuclphysbps.2004.11.151

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Okamoto, M., Aubin, C., Bernard, C., DeTar, C., Di Pierro, M., El-Khadra, A. X., Gottlieb, S., Gregory, E. B., Heller, U. M., Hetrick, J., Kronfeld, A. S., Mackenzie, P. B., Menscher, D. P., Nobes, M., Oktay, M. B., Osborn, J., Simone, J. N., Sugar, R., Toussaint, D., & Trottier, H. D. (2005). Semileptonic D → π/K and B → π/D decays in 2+1 flavor lattice QCD. Nuclear Physics B - Proceedings Supplements, 140(SPEC. ISS.), 461-463. https://doi.org/10.1016/j.nuclphysbps.2004.11.151

Okamoto, M, Aubin, C, Bernard, C, DeTar, C, Di Pierro, M, El-Khadra, AX, Gottlieb, S, Gregory, EB, Heller, UM, Hetrick, J, Kronfeld, AS, Mackenzie, PB, Menscher, DP, Nobes, M, Oktay, MB, Osborn, J, Simone, JN, Sugar, R, Toussaint, D & Trottier, HD 2005, 'Semileptonic D → π/K and B → π/D decays in 2+1 flavor lattice QCD', Nuclear Physics B - Proceedings Supplements, vol. 140, no. SPEC. ISS., pp. 461-463. https://doi.org/10.1016/j.nuclphysbps.2004.11.151

@article{9a5bd9c9385b4230a44ccaa22b0b92f2,

title = "Semileptonic D → π/K and B → π/D decays in 2+1 flavor lattice QCD",

abstract = "We present results for form factors of semileptonic decays of D and B mesons in 2 + 1 flavor lattice QCD using the MILC gauge configurations. With an improved staggered action for light quarks, we successfully reduce the systematic error from the chiral extrapolation. The results for D decays are in agreement with experimental ones. The results for B decays are preliminary. Combining our results with experimental branching ratios, we then obtain the CKM matrix elements Vcd , Vcs , Vcb and Vub . We also check CKM unitarity, for the first time, using only lattice QCD as the theoretical input.",

author = "M. Okamoto and C. Aubin and C. Bernard and C. DeTar and \{Di Pierro\}, M. and El-Khadra, \{A. X.\} and Steven Gottlieb and Gregory, \{E. B.\} and Heller, \{U. M.\} and J. Hetrick and Kronfeld, \{A. S.\} and Mackenzie, \{P. B.\} and Menscher, \{D. P.\} and M. Nobes and Oktay, \{M. B.\} and J. Osborn and Simone, \{J. N.\} and R. Sugar and D. Toussaint and Trottier, \{H. D.\}",

year = "2005",

month = mar,

doi = "10.1016/j.nuclphysbps.2004.11.151",

language = "English (US)",

volume = "140",

pages = "461--463",

journal = "Nuclear Physics B - Proceedings Supplements",

issn = "0920-5632",

publisher = "Elsevier B.V.",

number = "SPEC. ISS.",

}

TY - JOUR

T1 - Semileptonic D → π/K and B → π/D decays in 2+1 flavor lattice QCD

AU - Okamoto, M.

AU - Aubin, C.

AU - Bernard, C.

AU - DeTar, C.

AU - Di Pierro, M.

AU - El-Khadra, A. X.

AU - Gottlieb, Steven

AU - Gregory, E. B.

AU - Heller, U. M.

AU - Hetrick, J.

AU - Kronfeld, A. S.

AU - Mackenzie, P. B.

AU - Menscher, D. P.

AU - Nobes, M.

AU - Oktay, M. B.

AU - Osborn, J.

AU - Simone, J. N.

AU - Sugar, R.

AU - Toussaint, D.

AU - Trottier, H. D.

PY - 2005/3

Y1 - 2005/3

N2 - We present results for form factors of semileptonic decays of D and B mesons in 2 + 1 flavor lattice QCD using the MILC gauge configurations. With an improved staggered action for light quarks, we successfully reduce the systematic error from the chiral extrapolation. The results for D decays are in agreement with experimental ones. The results for B decays are preliminary. Combining our results with experimental branching ratios, we then obtain the CKM matrix elements Vcd , Vcs , Vcb and Vub . We also check CKM unitarity, for the first time, using only lattice QCD as the theoretical input.

AB - We present results for form factors of semileptonic decays of D and B mesons in 2 + 1 flavor lattice QCD using the MILC gauge configurations. With an improved staggered action for light quarks, we successfully reduce the systematic error from the chiral extrapolation. The results for D decays are in agreement with experimental ones. The results for B decays are preliminary. Combining our results with experimental branching ratios, we then obtain the CKM matrix elements Vcd , Vcs , Vcb and Vub . We also check CKM unitarity, for the first time, using only lattice QCD as the theoretical input.

UR - https://www.scopus.com/pages/publications/12344333434

UR - https://www.scopus.com/pages/publications/12344333434#tab=citedBy

U2 - 10.1016/j.nuclphysbps.2004.11.151

DO - 10.1016/j.nuclphysbps.2004.11.151

M3 - Article

AN - SCOPUS:12344333434

SN - 0920-5632

VL - 140

SP - 461

EP - 463

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

IS - SPEC. ISS.

ER -

Semileptonic D → π/K and B → π/D decays in 2+1 flavor lattice QCD

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