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Phase 2:
B- and D-meson physics with domain-wall light and charm quarks and relativistic heavy quarks

Overview     Phase 1     Phase 2    Publications    Presentations

Participants

Jonathan Flynn   Ryan Hill   Taku Izubuchi   Andreas Jüttner   Taichi Kawanai   Christoph Lehner   Edwin Lizarazo   Amarjit Soni  
J. Tobias Tsang   Oliver Witzel (RBC-UKQCD Collaboration)

The Project

USQCD allocation period 2016/2018
Semi-leptonic B and Bs -decays with charming hadronic final state
(PI Amarjit Soni)

EPCC Cirrus early science call 2017
B → D(*) l ν form factors at 2.7 GeV
(PI Oliver Witzel)

USQCD allocation period 2016/2017
Semi-leptonic B and B s -decays with charming hadronic final state
(PI Amarjit Soni)

UoE Supercomputing Call 2015
Parameter tuning for B-physics at 1/a=2.8 GeV
(PI Oliver Witzel)

USQCD allocation period 2015/2016
Improving precision for B-physics with physical mass domain-wall light quarks and relativistic b-quarks
(PI Amarjit Soni)

USQCD allocation period 2014/2015
B-meson physics: physical mass domain-wall light quarks and relativistic b-quarks
(PI Oliver Witzel)

USQCD allocation period 2013/2014
B0-B0 -meson physics with domain-wall light quarks at their physical mass and relativistic heavy quarks
(PI Oliver Witzel)
Proposal

Status

  • 48c ensemble with physical pions (a ≈ 0.11 fm)

    Production of 48c Möbius domain-wall light quark propagators using deflation and all mode averaging is completed, we are however investigating options to further increase the statistics.
    We generated 81 "sloppy" and 1 "exact" propagator per configuration on a set of 40 configurations for two valence quark masses
    a m = 0.00078 and 0.0362. The 81 sloppy sources are evenly distributed over the 4-dimensional lattice using spatial coordinates
    x = 0, 16, 32 and temporal coordinates t = 0, 32, 64. Propagators are generated on the configurations 640:40:2200
  • 48c ensemble at the finer lattice spacing (a ≈ 0.07 fm)

    We generated a set of unitary light and strange quark propagators using a m = 0.002144 and 0.02144. Per configuration 24 propagators are created using spatial coordinates (0,0,0) and time slices [0:4:92]. Propagators are generated on the configurations 4000:40:7880.
For many processes of interest data have already been accumulated and analysis is in progress.

[last updated March 7, 2020]