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Title: Semileptonic $B$-Meson Decays to Light Pseudoscalar Mesons on the HISQ Ensembles

Abstract

We report the status of an ongoing lattice-QCD calculation of form factors for exclusive semileptonic decays of $B$ mesons with both charged currents ($$B\to\pi\ell\nu$$, $$B_s\to K\ell\nu$$) and neutral currents ($$B\to\pi\ell^+\ell^-$$, $$B\to K\ell^+\ell^-$$). The results are important for constraining or revealing physics beyond the Standard Model. This work uses MILC's (2+1+1)-flavor ensembles with the HISQ action for the sea and light valence quarks and the clover action in the Fermilab interpretation for the $b$ quark. Simulations are carried out at three lattice spacings down to $0.088$ fm, with both physical and unphysical sea-quark masses. We present preliminary results for correlation-function fits.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [6];  [1];  [4];  [8];  [4];  [4]
  1. Iowa U.
  2. Washington U., St. Louis
  3. Utah U.
  4. Fermilab
  5. Granada U., Theor. Phys. Astrophys.
  6. Indiana U.
  7. TUM-IAS, Munich
  8. Arizona U.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1423242
Report Number(s):
arXiv:1710.09442; FERMILAB-CONF-17-484-T
1632762
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: 35th International Symposium on Lattice Field Theory, Granada, Spain, 06/18-06/24/2017
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Gelzer, Zechariah, Bernard, C., DeTar, C., El-Khadra, A. X., Gámiz, E., Gottlieb, Steven, Kronfeld, Andreas S., Liu, Yuzhi, Meurice, Y., Simone, J. N., Toussaint, D., Van de Water, R. S., and Zhou, R.. Semileptonic $B$-Meson Decays to Light Pseudoscalar Mesons on the HISQ Ensembles. United States: N. p., 2017. Web.
Gelzer, Zechariah, Bernard, C., DeTar, C., El-Khadra, A. X., Gámiz, E., Gottlieb, Steven, Kronfeld, Andreas S., Liu, Yuzhi, Meurice, Y., Simone, J. N., Toussaint, D., Van de Water, R. S., & Zhou, R.. Semileptonic $B$-Meson Decays to Light Pseudoscalar Mesons on the HISQ Ensembles. United States.
Gelzer, Zechariah, Bernard, C., DeTar, C., El-Khadra, A. X., Gámiz, E., Gottlieb, Steven, Kronfeld, Andreas S., Liu, Yuzhi, Meurice, Y., Simone, J. N., Toussaint, D., Van de Water, R. S., and Zhou, R.. Wed . "Semileptonic $B$-Meson Decays to Light Pseudoscalar Mesons on the HISQ Ensembles". United States. doi:. https://www.osti.gov/servlets/purl/1423242.
@article{osti_1423242,
title = {Semileptonic $B$-Meson Decays to Light Pseudoscalar Mesons on the HISQ Ensembles},
author = {Gelzer, Zechariah and Bernard, C. and DeTar, C. and El-Khadra, A. X. and Gámiz, E. and Gottlieb, Steven and Kronfeld, Andreas S. and Liu, Yuzhi and Meurice, Y. and Simone, J. N. and Toussaint, D. and Van de Water, R. S. and Zhou, R.},
abstractNote = {We report the status of an ongoing lattice-QCD calculation of form factors for exclusive semileptonic decays of $B$ mesons with both charged currents ($B\to\pi\ell\nu$, $B_s\to K\ell\nu$) and neutral currents ($B\to\pi\ell^+\ell^-$, $B\to K\ell^+\ell^-$). The results are important for constraining or revealing physics beyond the Standard Model. This work uses MILC's (2+1+1)-flavor ensembles with the HISQ action for the sea and light valence quarks and the clover action in the Fermilab interpretation for the $b$ quark. Simulations are carried out at three lattice spacings down to $0.088$ fm, with both physical and unphysical sea-quark masses. We present preliminary results for correlation-function fits.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Oct 25 00:00:00 EDT 2017},
month = {Wed Oct 25 00:00:00 EDT 2017}
}

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