scholarly journals Heavy quark scaling of $B \to \pi \ell \nu$ form factors with Möbius domain wall fermions

2019 ◽  
Author(s):  
Brian Colquhoun ◽  
Shoji Hashimoto ◽  
Takashi Kaneko
Keyword(s):  
Domain Wall ◽  
Heavy Quark ◽  
Form Factors ◽  
Domain Wall Fermions

scholarly journals Nucleon structure from 2+1-flavor domain-wall QCD

2018 ◽  
Vol 175 ◽  
pp. 06012 ◽  
Author(s):  
Shigemi Ohta
Keyword(s):  
Domain Wall ◽  
Lattice Spacing ◽  
Pion Mass ◽  
Form Factors ◽  
Nucleon Structure ◽  
Current Form ◽  
Gauge Action ◽  
Domain Wall Fermions ◽  
Quark Momentum ◽  
Structure Calculations

Nucleon-structure calculations of isovector vector-and axialvector-current form factors, transversity and scalar charge, and quark momentum and helicity fractions are reported from two recent 2+1-flavor dynamical domain-wall fermions lattice-QCD ensembles generated jointly by the RIKEN-BNL-Columbia and UKQCD Collaborations with Iwasaki × dislocation-suppressing-determinatn-ratio gauge action at inverse lattice spacing of 1.378(7) GeV and pion mass values of 249.4(3) and 172.3(3) MeV.

scholarly journals N to Delta transition form factors with NF=2+1 domain wall fermions

2010 ◽  
Author(s):  
A. O'Cais ◽  
Constantia Alexandrou ◽  
Giannis Koutsou ◽  
John Negele ◽  
Y. Proestos ◽  
...  
Keyword(s):  
Domain Wall ◽  
Form Factors ◽  
Transition Form ◽  
Domain Wall Fermions ◽  
N To Delta Transition

scholarly journals Nucleon Electromagnetic Form Factors With Domain Wall Fermions on an Asqtad Sea

2009 ◽  
Author(s):  
Meifeng Lin ◽  
Jonathan Bratt ◽  
Robert Edwards ◽  
Michael Engelhardt ◽  
George T. Fleming ◽  
...  
Keyword(s):  
Domain Wall ◽  
Form Factors ◽  
Electromagnetic Form Factors ◽  
Domain Wall Fermions

scholarly journals Nucleon form factors with2+1flavor dynamical domain-wall fermions

2009 ◽  
Vol 79 (11) ◽  
Author(s):  
Takeshi Yamazaki ◽  
Yasumichi Aoki ◽  
Tom Blum ◽  
Huey-Wen Lin ◽  
Shigemi Ohta ◽  
...  
Keyword(s):  
Domain Wall ◽  
Form Factors ◽  
Domain Wall Fermions ◽  
Nucleon Form Factors

scholarly journals B → πlv with Möbius Domain Wall Fermions

2018 ◽  
Vol 175 ◽  
pp. 13004 ◽  
Author(s):  
Brian Colquhoun ◽  
Shoji Hashimoto ◽  
Takashi Kaneko
Keyword(s):  
Domain Wall ◽  
Lattice Spacing ◽  
Semileptonic Decay ◽  
Form Factors ◽  
Heavy Quarks ◽  
Ckm Matrix ◽  
Domain Wall Fermions ◽  
Heavy Quark Mass ◽  
The Status

We report on the status of our calculation of the exclusive semileptonic decay, B → πlv; a key process in the determination of the CKM matrix element |Vub|. The Möbius domain wall action is used for both light and heavy quarks on gauge ensembles that include the effects of 2 + 1 flavours of quarks in the sea at three values of the lattice spacing: a ≈ 0.08 fm, a ≈ 0.055 fm, and a ≈ 0.044 fm. Pion masses go down to 300 MeV while heavy quarks masses are as large as 2.44mc. We present preliminary results of form factors from this process, showing dependence on momentum transfer, lattice spacing, and the heavy quark mass.

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