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

171 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

Access to Document

10.1016/j.nuclphysbps.2004.11.151

Cite this

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 - http://www.scopus.com/inward/record.url?scp=12344333434&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=12344333434&partnerID=8YFLogxK

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

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this