B → D∗lν at zero recoil: An update

MILC Collaborations

B → D^∗lν at zero recoil: An update

MILC Collaborations

Integrated Sciences and Engineering Division

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

Abstract

We present an update of our calculation of the form factor for B^¯ →D^∗lν¯ at zero recoil, with higher statistics and finer lattices. As before, we use the Fermilab action for b and c quarks, the asqtad staggered action for light valence quarks, and the MILC ensembles for gluons and light quarks (Lüscher-Weisz married to 2+1 rooted staggered sea quarks). In this update, we have reduced the total uncertainty on F(1) from 2.6% to 1.7%. At Lattice2010 we presented a still-blinded result, but this writeup includes the unblinded result from the September 2010 CKM workshop.

Original language	English
Journal	Proceedings of Science
Volume	105
Publication status	Published - 2010
Event	28th International Symposium on Lattice Field Theory, Lattice 2010 - Villasimius, Sardinia, Italy Duration: 2010 Jun 14 → 2010 Jun 19

Bibliographical note

Funding Information:
∗Speaker. †Operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. ‡Operated by Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the United States Department of Energy.

Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

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Cite this

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title = "B → D∗lν at zero recoil: An update",

abstract = "We present an update of our calculation of the form factor for B¯ →D∗lν¯ at zero recoil, with higher statistics and finer lattices. As before, we use the Fermilab action for b and c quarks, the asqtad staggered action for light valence quarks, and the MILC ensembles for gluons and light quarks (L{\"u}scher-Weisz married to 2+1 rooted staggered sea quarks). In this update, we have reduced the total uncertainty on F(1) from 2.6% to 1.7%. At Lattice2010 we presented a still-blinded result, but this writeup includes the unblinded result from the September 2010 CKM workshop.",

author = "{MILC Collaborations} and Bailey, {Jon A.} and A. Bazavov and C. Bernard and Bouchard, {C. M.} and C. DeTar and El-Khadra, {A. X.} and Freeland, {E. D.} and E. G{\'a}miz and Steven Gottlieb and Heller, {U. M.} and Hetrick, {J. E.} and Kronfeld, {Andreas S.} and J. Laiho and L. Levkova and Mackenzie, {P. B.} and Oktay, {M. B.} and Simone, {J. N.} and R. Sugar and D. Toussaint and {Van De Water}, {R. S.} and Fermilab Lattice",

note = "Funding Information: ∗Speaker. †Operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. ‡Operated by Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the United States Department of Energy. Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 28th International Symposium on Lattice Field Theory, Lattice 2010 ; Conference date: 14-06-2010 Through 19-06-2010",

year = "2010",

language = "English",

volume = "105",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

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TY - JOUR

T1 - B → D∗lν at zero recoil

T2 - 28th International Symposium on Lattice Field Theory, Lattice 2010

AU - MILC Collaborations

AU - Bailey, Jon A.

AU - Bazavov, A.

AU - Bernard, C.

AU - Bouchard, C. M.

AU - DeTar, C.

AU - El-Khadra, A. X.

AU - Freeland, E. D.

AU - Gámiz, E.

AU - Gottlieb, Steven

AU - Heller, U. M.

AU - Hetrick, J. E.

AU - Kronfeld, Andreas S.

AU - Laiho, J.

AU - Levkova, L.

AU - Mackenzie, P. B.

AU - Oktay, M. B.

AU - Simone, J. N.

AU - Sugar, R.

AU - Toussaint, D.

AU - Van De Water, R. S.

AU - Lattice, Fermilab

N1 - Funding Information: ∗Speaker. †Operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. ‡Operated by Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the United States Department of Energy. Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

PY - 2010

Y1 - 2010

N2 - We present an update of our calculation of the form factor for B¯ →D∗lν¯ at zero recoil, with higher statistics and finer lattices. As before, we use the Fermilab action for b and c quarks, the asqtad staggered action for light valence quarks, and the MILC ensembles for gluons and light quarks (Lüscher-Weisz married to 2+1 rooted staggered sea quarks). In this update, we have reduced the total uncertainty on F(1) from 2.6% to 1.7%. At Lattice2010 we presented a still-blinded result, but this writeup includes the unblinded result from the September 2010 CKM workshop.

AB - We present an update of our calculation of the form factor for B¯ →D∗lν¯ at zero recoil, with higher statistics and finer lattices. As before, we use the Fermilab action for b and c quarks, the asqtad staggered action for light valence quarks, and the MILC ensembles for gluons and light quarks (Lüscher-Weisz married to 2+1 rooted staggered sea quarks). In this update, we have reduced the total uncertainty on F(1) from 2.6% to 1.7%. At Lattice2010 we presented a still-blinded result, but this writeup includes the unblinded result from the September 2010 CKM workshop.

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M3 - Conference article

AN - SCOPUS:85055354788

SN - 1824-8039

VL - 105

JO - Proceedings of Science

JF - Proceedings of Science

Y2 - 14 June 2010 through 19 June 2010

ER -

B → D^∗lν at zero recoil: An update

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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