B-meson physics with domain-wall light quarks and relativistic heavy quarks

(RBC Collaboration)

Jonathan Flynn Andreas Jüttner Edwin Lizarazo Ben Samways Oliver Witzel (since 10/2014)

(UKQCD Collaboration)

The project started with the USQCD allocation period 2009/2010 utilizing the 2+1 dynamical flavor domain-wall Iwasaki gauge field configurations generated by the RBC- and UKQCD collaboration with lattice spacings of a ≈ 0.086 fm and 0.11 fm. We completed generating all needed domain-wall light quark propagators on these ensembles and those are immediately available for non-competing project. A frame work for computing matching and O(a) improvement coefficients is in place and likewise most of the numerical work is completed. We are right now analyzing our data and preparing publications. We refer to this part as "Phase 1" of our project.

For the allocation period 2013/14 we are proposing to extend our B-physics project to the new 2+1 dynamical flavor Möbius-domain-wall ensembles which allow to simulate physical light quarks in a larger volume and at lattice spacing a ≈ 0.086 fm and 0.11 fm. This will help to greatly reduce the uncertainty coming from the chiral part of our combined chiral- and continuum extrapolation which is one of our largerst uncertainties. This extension is named "Phase 2".

Further information is available at Phase 1 (USQCD allocation 2009/2010 - 2012/2013) and Phase 2 (USQCD allocation 2013/2014)

48³ Möbius domain-wall propagators

Chroma Tutorial "HackLatt08"

Möbius domain-wall propagators are generated with MDWF and QLUA

To get information on the status of the clusters, please follow the links below.

bc cluster ds cluster pi0 cluster

"The B*Bpi coupling using relativistic heavy quarks "

Jonathan M. Flynn, Taku Izubuchi, Taichi Kawanai, Christoph Lehner, Amarjit Soni, Ruth S. Van de Water, Oliver Witzel:

"The B->pi l nu and Bs->K l nu form factors and |Vub| from 2+1-flavor lattice QCD with domain-wall light quarks and relativistic heavy quarks "

**Phys.Rev. D91 (2015) 074510**, arXiv:1501.05373 [hep-lat]

Norman H. Christ, Jonathan M. Flynn, Taku Izubuchi, Taichi Kawanai, Christoph Lehner, Amarjit Soni, Ruth S. Van de Water, Oliver Witzel:

"B-meson decay constants from 2+1-flavor lattice QCD with domain-wall light quarks and relativistic heavy quarks"

**Phys.Rev. D91 (2015) 054502**, arXiv:1404.4670 [hep-lat]

Oliver Witzel:

"Calculating B-meson decay constants using domain-wall light quarks and nonperturbatively tuned relativistic b-quarks"

**PoS Lattice2012 (2013) 377**, arXiv:1311.0276 [hep-lat]

Taichi Kawanai, Ruth S. Van de Water, Oliver Witzel:

"The form factors for B -> pi nu semileptonic decay from 2+1 flavors of domain-wall fermions"

**PoS Lattice2012 (2013) 378**, arXiv:1311.1143 [hep-lat]

Ben Samways, Jonathan M. Flynn, Chris T. Sachrajda, Patrick Fritzsch, Taichi Kawanai, Christoph Lehnre, Ruth S. Van de Water, Oliver Witzel:

"The B ∗ Bπ coupling with relativistic heavy quarks"

**PoS Lattice2012 (2013) 408**, arXiv:1311.2251 [hep-lat]

Christoph Lehner:

"Automated lattice perturbation theory and relativistic heavy quarks in the Columbia formulation."

**PoS Lattice2012 (2012) 126**, arXiv:1211.4013 [hep-lat]

Oliver Witzel:

"Calculating B-meson decay constants using domain-wall light quarks and nonperturbatively tuned relativistic b-quarks"

**PoS Lattice2012 (2012) 103**, arXiv:1211.3180 [hep-lat]

Taichi Kawanai, Ruth S. Van de Water, Oliver Witzel:

"The B -> pi l nu form factor from unquenched lattice QCD with domain-wall light quarks and relativistic b-quarks"

**PoS Lattice2012 (2012) 109**, arXiv:1211.0956 [hep-lat]

Oliver Witzel:

"B-physics with domain-wall light quarks and nonperturbatively tuned relativistic b-quarks"

to appear in Proceeding **CIPANP 2012 ID 205**

Yasumichi Aoki , Norman H. Christ , Jonathan M. Flynn, Taku Izubuchi, Christoph Lehner, Min Li, Hao Peng,

Amarjit Soni, Ruth S. Van de Water, Oliver Witzel:

"Nonperturbative tuning of an improved relativistic heavy-quark action and application to bottom spectroscopy"

**Phys.Rev. D86 (2012) 116003**, arXiv:1206.2554 [hep-lat]

Ruth S. Van de Water and Oliver Witzel:

"B-physics with dynamical domain-wall light quarks and relativistic b-quark"

**PoS Lattice2010 (2010) 318**, arXiv:1101.4580 [hep-lat]

"Beautiful physics on the lattice"

Theory seminar at the University of Colorado Boulder, Boulder, Colorado, USA

Oliver Witzel:

"B-physics with domain-wall light quarks and
nonperturbatively tuned relativistic b-quarks"

Talk at CCP 2014, Boston, Massachusetts, USA

Taichi Kawanai:

"The form factor for B to π semileptonic decay from 2+1 flavors of domain-wall fermions"

Talk at Lattice 2014, New York City, New York, USA

Oliver Witzel:

"B-physics with domain-wall light quarks and
nonperturbatively tuned relativistic b-quarks"

Talk at Lattice 2014, New York City, New York, USA

Ben Samways:

"The B∗B pi coupling with relativistic heavy quarks"

Talk at Lattice 2013, Mainz, Germany

Christoph Lehner:

"A new computer algebra system for (lattice) perturbation theory and the RBC/UKQCD heavy quark physics program"

Talk at Lattice 2013, Mainz, Germany

Taichi Kawanai:

"The form factor for B to π semileptonic decay from 2+1 flavors of domain-wall fermions"

Talk at Lattice 2013, Mainz, Germany

Oliver Witzel:

"B-meson decay constants with domain-wall light
quarks and nonperturbatively tuned relativistic b-quarks"

Talk at Lattice 2013, Mainz, Germany

Christoph Lehner:

"Automated (L)PT and RHQ in the Columbia formulation "

Talk at Lattice 2012, Carins, Queensland, Australia

Taichi Kawanai:

"The B to pi form factor from domain-wall light quarks and relativistic b-quarks"

Talk at Lattice 2012, Carins, Queensland, Australia

Oliver Witzel:

"Calculating B-meson decay constants using domain-wall light quarks and nonperturbatively tuned relativistic b-quarks"

Talk at Lattice 2012, Carins, Queensland, Australia

Oliver Witzel:

"B-physics with domain-wall light quarks and nonperturbatively tuned relativistic b-quarks"

Talk at CIPANP 2012, St. Petersburg, Florida, USA

Oliver Witzel:

B-physics with domain-wall light quarks and relativistic heavy quarks

New Horizons for Lattice Computations with Chiral Fermions, workshop at BNL, New York, USA

Oliver Witzel:

B-meson physics with dynamical domain-wall light quarks and nonperturbatively tuned relativisitc b-quarks

Beautiful Mesons and Baryons on the Lattice, workshop at the ECT*, Trento, Italy

Oliver Witzel:

"B-meson physics with dynamical domain-wall light quarks and nonperturbatively tuned relativisitc b-quarks"

Talk at Lattice 2011, Squaw Valley, California, USA

Oliver Witzel:

B-physics with dynamical domain-wall light quarks and relativistic b-quarks

Talk at Lattice 2010, Villasimius, Sardinia, Italy

, Phone: +1-617-353 2611. [last updated June 23, 2015]