Yuzhi Liu

activity

20082021

most cited

∣ V_{u b} ∣

from

B \to π ℓ ν

decays and (2+1)-flavor lattice QCD

167 citations · 1.4k across the 42 of their papers we have counts for

collaborators

Showing hep-latShow all

36 papers · 1 filter

hep-lat2019★ 1 cited

$B$ -meson semileptonic form factors on (2+1+1)-flavor HISQ ensembles

Z. Gelzer, C. DeTar, A. X. El-Khadra +8

We report updates to an ongoing lattice-QCD calculation of the form factors for the semileptonic decays $B \to π ℓ ν$ , $B_{s} \to K ℓ ν$ , $B \to π ℓ^{+} ℓ^{-}$ , and $B \to K \e…

hep-lat2019★ 2 cited

The hadronic vacuum polarization of the muon from four-flavor lattice QCD

C. T. H. Davies, C. E. DeTar, A. X. El-Khadra +16

We present an update on the ongoing calculations by the Fermilab Lattice, HPQCD, and MILC Collaboration of the leading-order (in electromagnetism) hadronic vacuum polarization cont…

hep-lat2019★ 137 cited

Hadronic-vacuum-polarization contribution to the muon's anomalous magnetic moment from four-flavor lattice QCD

C. T. H. Davies, C. DeTar, A. X. El-Khadra +15

We calculate the contribution to the muon anomalous magnetic moment hadronic vacuum polarization from {the} connected diagrams of up and down quarks, omitting electromagnetism. We…

hep-lat2019★ 53 cited

$B_{s} \to K ℓ ν$ decay from lattice QCD

A. Bazavov, C. Bernard, C. DeTar +17

We use lattice QCD to calculate the form factors $f_{+} (q^{2})$ and $f_{0} (q^{2})$ for the semileptonic decay $B_{s} \to K ℓ ν$ . Our calculation uses six MILC asqtad 2+1 flavor gauge-field e…

hep-lat2017★ 5 cited

$B_{s} \to K ℓ ν$ form factors with 2+1 flavors

Fermilab Lattice, MILC Collaborations, : +23

Using the MILC 2+1 flavor asqtad quark action ensembles, we are calculating the form factors $f_{0}$ and $f_{+}$ for the semileptonic $B_{s} \to K ℓ ν$ decay. A total of six en…

hep-lat2017★ 8 cited

Semileptonic $B$ -meson decays to light pseudoscalar mesons on the HISQ ensembles

Zechariah Gelzer, C. Bernard, C. DeTar +10

We report the status of an ongoing lattice-QCD calculation of form factors for exclusive semileptonic decays of $B$ mesons with both charged currents ( $B \to π ℓ ν$ , $B_{s} \to K ℓ ν$ …

hep-lat2017★ 112 cited

Strong-isospin-breaking correction to the muon anomalous magnetic moment from lattice QCD at the physical point

Bipasha Chakraborty, C. T. H. Davies, C. DeTar +17

All lattice-QCD calculations of the hadronic-vacuum-polarization contribution to the muon's anomalous magnetic moment to-date have been performed with degenerate up- and down-quark…

hep-lat2016★ 30 cited

Lattice study of large $N_{c}$ QCD

Thomas DeGrand, Yuzhi Liu

We present a lattice simulation study of large $N_{c}$ regularities of meson and baryon spectroscopy in $S U (N_{c})$ gauge theory with two flavors of dynamical fundamental representatio…

hep-lat2015

Approaching conformality with the Tensor Renormalization Group method

Yannick Meurice, Li-Ping Yang, Judah Unmuth-Yockey +4

We discuss the Tensor Renormalization Group (TRG) method for the O(2) model with a chemical potential in 1+1 dimensions with emphasis on near gapless/conformal situations. We empha…

hep-lat2015★ 141 cited

$B \to K l^{+} l^{-}$ decay form factors from three-flavor lattice QCD

Jon A. Bailey, A. Bazavov, C. Bernard +24

We compute the form factors for the $B \to K l^{+} l^{-}$ semileptonic decay process in lattice QCD using gauge-field ensembles with 2+1 flavors of sea quark, generated by the MILC Colla…

hep-lat2015★ 24 cited

The renormalization group step scaling function of the 2-flavor SU(3) sextet model

Anna Hasenfratz, Yuzhi Liu, Cynthia Yu-Han Huang

We investigate the discrete $β$ function of the 2-flavor SU(3) sextet model using the finite volume gradient flow scheme. Our results, using clover improved nHYP smeared Wilson fer…

hep-lat2015★ 167 cited

$∣ V_{u b} ∣$ from $B \to π ℓ ν$ decays and (2+1)-flavor lattice QCD

Fermilab Lattice, MILC Collaborations, : +26

We present a lattice-QCD calculation of the $B \to π ℓ ν$ semileptonic form factors and a new determination of the CKM matrix element $∣ V_{u b} ∣$ . We use the MILC asqtad 2+1-flavor l…

hep-lat2015★ 42 cited

Spectroscopy of SU(4) gauge theory with two flavors of sextet fermions

Thomas DeGrand, Yuzhi Liu, Ethan T. Neil +2

We present a first look at the spectroscopy of SU(4) gauge theory coupled to two flavors of Dirac fermions in the two-index antisymmetric representation, which is a real representa…

hep-lat2014★ 3 cited

Spectroscopy of SU(4) lattice gauge theory with fermions in the two index anti-symmetric representation

Thomas DeGrand, Yuzhi Liu, Ethan T. Neil +2

We present a study of spectroscopy of SU(4) lattice gauge theory coupled to two flavors of Dirac fermions in the anti-symmetric two index representation. The fermion representation…

hep-lat2014

$B \to π ℓ ν$ semileptonic form factors from unquenched lattice QCD and determination of $∣ V_{u b} ∣$

J. A. Bailey, A. Bazavov, C. Bernard +22

We compute the $B \to π ℓ ν$ semileptonic form factors and update the determination of the CKM matrix element $∣ V_{u b} ∣$ . We use the MILC asqtad ensembles with $N_{f} = 2 + 1$ sea quarks…

hep-lat2014★ 5 cited

Sampling versus Blocking

Yannick Meurice, Yuzhi Liu, Judah Unmuth-Yockey +2

The idea of blocking in configuration space has played an important role in the development of the RG ideas. However, despite being half a century old and having had a huge intelle…

hep-lat2014

Exploring the phase structure of 12-flavor $S U (3)$

Zechariah Gelzer, Yuzhi Liu, Yannick Meurice

We are studying the $S U (3)$ gauge theory with 12 staggered fermions, searching for the endpoint of the line of first-order phase transitions in the mass--beta plane. This endpoint…

hep-lat2014★ 50 cited

Improving the continuum limit of gradient flow step scaling

Anqi Cheng, Anna Hasenfratz, Yuzhi Liu +2

We introduce a non-perturbative improvement for the renormalization group step scaling function based on the gradient flow running coupling, which may be applied to any lattice gau…

hep-lat2014★ 40 cited

Progress towards quantum simulating the classical O(2) model

Haiyuan Zou, Yuzhi Liu, Chen-Yen Lai +8

We connect explicitly the classical $O (2)$ model in 1+1 dimensions, a model sharing important features with $U (1)$ lattice gauge theory, to physical models potentially implementabl…

hep-lat2013★ 51 cited

Finite size scaling of conformal theories in the presence of a near-marginal operator

Anqi Cheng, Anna Hasenfratz, Yuzhi Liu +2

The slowly evolving gauge coupling of gauge-fermion systems near the conformal window makes numerical investigations of these models challenging. We consider finite size scaling an…

hep-lat2013★ 1 cited

Fisher zeros and RG flows for $S U (3)$ with $N_{f}$ flavors

Zechariah Gelzer, Yuzhi Liu, Yannick Meurice +1

We calculate the Fisher zeros for $S U (3)$ gauge theory with different $N_{f}$ flavors of staggered fermions for various values of the fermion mass. We discuss the finite-size scaling…

hep-lat2013★ 2 cited

Heavy-meson semileptonic decays for the Standard Model and beyond

Yuzhi Liu, Ran Zhou, Jon A. Bailey +25

We calculate the form factors for the semileptonic decays $B_{s} \to K ℓ ν$ and $B \to K ℓℓ$ with lattice QCD. We work at several lattice spacings and a range of light quark mass…

hep-lat2013★ 3 cited

Comparing Tensor Renormalization Group and Monte Carlo calculations for spin and gauge models

Yannick Meurice, Alan Denbleyker, Yuzhi Liu +5

We show that the Tensor Renormalization Group (TRG) method can be applied to O(N) spin models, principal chiral models and pure gauge theories (Z2, U(1) and SU(2)) on (hyper) cubic…

hep-lat2013★ 65 cited

Controlling sign problems in spin models using tensor renormalization

Alan Denbleyker, Yuzhi Liu, Y. Meurice +5

We consider the sign problem for classical spin models at complex $β = 1/ g_{0}^{2}$ on $L \times L$ lattices. We show that the tensor renormalization group method allows reliable calculat…

B-meson semileptonic form factors on (2+1+1)-flavor HISQ ensembles