B*Bπ coupling using relativistic heavy quarks

Flynn, J. M.; Fritzsch, P.; Kawanai, T.; Lehner, C.; Samways, B.; Sachrajda, C. T.; Van de Water, R. S.; Witzel, O.

doi:10.1103/PhysRevD.93.014510

Title: B*Bπ coupling using relativistic heavy quarks

Abstract

Here, we report on a calculation of the B*Bπ coupling in three-flavor lattice QCD. This coupling, defined from the strong-interaction matrix element , is related to the leading order low-energy constant in heavy meson chiral perturbation theory. We carry out our calculation directly at the b-quark mass using a nonperturbatively tuned clover action that controls discretization effects of order |$$\vec{p}$$a| and (ma)ⁿ for all n. Our analysis is performed on RBC/UKQCD gauge configurations using domain-wall fermions and the Iwasaki gauge action at two lattice spacings of a^-1=1.729(25) GeV, a^-1=2.281(28) GeV, and unitary pion masses down to 290 MeV. We achieve good statistical precision and control all systematic uncertainties, giving a final result for the coupling g_b=0.56(3)_stat(7)_sys in the continuum and at the physical light-quark masses. Moreover, this is the first calculation performed directly at the physical b-quark mass and lies in the region one would expect from carrying out an interpolation between previous results at the charm mass and at the static point.

Authors:

Flynn, J. M. ^[1]; Fritzsch, P. ^[2]; Kawanai, T. ^[3]; Lehner, C. ^[3]; Samways, B. ^[1]; Sachrajda, C. T. ^[1]; Van de Water, R. S. ^[4]; Witzel, O. ^[5]

Univ. of Southampton, Southampton (United Kingdom)
Humboldt Univ., Berlin (Germany)
Brookhaven National Lab. (BNL), Upton, NY (United States)
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Boston Univ., Boston, MA (United States)

Publication Date:: Wed Jan 27 00:00:00 EST 2016

Research Org.:: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Org.:: RBC and UKQCD Collaborations

OSTI Identifier:: 1212686

Alternate Identifier(s):: OSTI ID: 1236284; OSTI ID: 1254819

Report Number(s):: FERMILAB-PUB-15-256-T; BNL-112233-2016-JA
Journal ID: ISSN 2470-0010; PRVDAQ; arXiv eprint number arXiv:1506.06413

Grant/Contract Number:: AC02-07CH11359; SC00112704

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review D

Additional Journal Information:: Journal Volume: 93; Journal Issue: 1; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; QCD; coupling; quarks; lattice; flavour

Citation Formats


                    Flynn, J. M., Fritzsch, P., Kawanai, T., Lehner, C., Samways, B., Sachrajda, C. T., Van de Water, R. S., and Witzel, O. B*Bπ coupling using relativistic heavy quarks.  United States: N. p., 2016. 
Web.  doi:10.1103/PhysRevD.93.014510.

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                    Flynn, J. M., Fritzsch, P., Kawanai, T., Lehner, C., Samways, B., Sachrajda, C. T., Van de Water, R. S., & Witzel, O. B*Bπ coupling using relativistic heavy quarks.  United States.  https://doi.org/10.1103/PhysRevD.93.014510

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                    Flynn, J. M., Fritzsch, P., Kawanai, T., Lehner, C., Samways, B., Sachrajda, C. T., Van de Water, R. S., and Witzel, O. Wed .  
"B*Bπ coupling using relativistic heavy quarks".  United States.  https://doi.org/10.1103/PhysRevD.93.014510.  https://www.osti.gov/servlets/purl/1212686.

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@article{osti_1212686,

  title        = {B*Bπ coupling using relativistic heavy quarks},

  author       = {Flynn, J. M. and Fritzsch, P. and Kawanai, T. and Lehner, C. and Samways, B. and Sachrajda, C. T. and Van de Water, R. S. and Witzel, O.},

  abstractNote = {Here, we report on a calculation of the B*Bπ coupling in three-flavor lattice QCD. This coupling, defined from the strong-interaction matrix element , is related to the leading order low-energy constant in heavy meson chiral perturbation theory. We carry out our calculation directly at the b-quark mass using a nonperturbatively tuned clover action that controls discretization effects of order |$\vec{p}$a| and (ma)n for all n. Our analysis is performed on RBC/UKQCD gauge configurations using domain-wall fermions and the Iwasaki gauge action at two lattice spacings of a-1=1.729(25) GeV, a-1=2.281(28) GeV, and unitary pion masses down to 290 MeV. We achieve good statistical precision and control all systematic uncertainties, giving a final result for the coupling gb=0.56(3)stat(7)sys in the continuum and at the physical light-quark masses. Moreover, this is the first calculation performed directly at the physical b-quark mass and lies in the region one would expect from carrying out an interpolation between previous results at the charm mass and at the static point.},

  doi          = {10.1103/PhysRevD.93.014510},

  journal      = {Physical Review D},

  number       = 1,

  volume       = 93,

  place        = {United States},

  year         = {Wed Jan 27 00:00:00 EST 2016},

  month        = {Wed Jan 27 00:00:00 EST 2016}

}

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Title: B*Bπ coupling using relativistic heavy quarks

Abstract

Citation Formats

CP violation and the CKM matrix: assessing the impact of the asymmetric B factories journal, May 2005

The 2004 UTfit collaboration report on the status of the unitarity triangle in the standard model journal, July 2005

Lattice QCD inputs to the CKM unitarity triangle analysis journal, February 2010

Chiral perturbation theory for SU(3) breaking in heavy-meson systems journal, November 1992

Quenched chiral perturbation theory for heavy-light mesons journal, May 1996

First lattice QCD estimate of the g D * D π coupling journal, October 2002

Lattice measurement of the couplings and g B * B journal, February 2004

Determination of B * B π coupling in unquenched lattice QCD journal, May 2008

Calculation of the heavy-hadron axial couplings g 1 , g 2 , and g 3 using lattice QCD journal, June 2012

Precision lattice QCD computation of the B ⁎ B π coupling journal, January 2015

First Measurement of Γ(D*+) journal, November 2001

First measurement of Γ ( D * + ) and precision measurement of m D * + − m D 0 journal, January 2002

Measurement of the D * ( 2010 ) + Meson Width and the D * ( 2010 ) + − D 0 Mass Difference journal, September 2013

Erratum: Measurement of the D * ( 2010 ) + Meson Width and the D * ( 2010 ) + − D 0 Mass Difference [Phys. Rev. Lett. 111 , 111801 (2013)] journal, October 2013

Measurement of the D * ( 2010 ) + natural linewidth and the D * ( 2010 ) + − D 0 mass difference journal, September 2013

Erratum: Measurement of the D * ( 2010 ) + natural linewidth and the D * ( 2010 ) + − D 0 mass difference [Phys. Rev. D 88 , 052003 (2013)] journal, October 2013

On the coupling of heavy mesons to pions in QCD journal, November 1994

D * D π and B * B π couplings in QCD journal, June 1995

couplings and within a in full QCD journal, January 1996

QCD interactions of heavy mesons with pions by light-cone sum rules journal, July 1998

Heavy-quark symmetry and chiral dynamics journal, August 1992

Chiral perturbation theory for hadrons containing a heavy quark journal, April 1992

Phenomenology of heavy meson chiral lagrangians journal, March 1997

Physical results from 2 + 1 flavor domain wall QCD and SU(2) chiral perturbation theory journal, December 2008

Continuum limit physics from 2 + 1 flavor domain wall QCD journal, April 2011

Renormalization group improved action for SU(3) lattice gauge theory and the string tension journal, August 1984

A method for simulating chiral fermions on the lattice journal, August 1992

Chiral fermions from lattice boundaries journal, September 1993

Nonperturbative tuning of an improved relativistic heavy-quark action with application to bottom spectroscopy journal, December 2012

B -meson decay constants from 2 + 1 -flavor lattice QCD with domain-wall light quarks and relativistic heavy quarks journal, March 2015

B → π ℓ ν and B s → K ℓ ν form factors and | V u b | from 2 + 1 -flavor lattice QCD with domain-wall light quarks and relativistic heavy quarks journal, April 2015

An effective field theory for the calculation of matrix elements involving heavy quarks journal, January 1990

Axial Couplings and Strong Decay Widths of Heavy Hadrons journal, April 2012

Simulating heavy quarks journal, January 1992

Massive fermions in lattice gauge theory journal, April 1997

Relativistic Heavy Quarks on the Lattice journal, March 2003

Relativistic heavy quark effective action journal, October 2007

Improved continuum limit lattice action for QCD with wilson fermions journal, September 1985

Nonperturbatively determined relativistic heavy quark action journal, October 2007

The Chroma Software System for Lattice QCD journal, March 2005

Axial couplings in heavy-hadron chiral perturbation theory at the next-to-leading order journal, November 2011

Review of Particle Physics journal, July 2012

Continuum limit and improved action in lattice theories journal, September 1983

New lattice action for heavy quarks journal, July 2008

D ∗→Dπ and D ∗→Dγ decays: axial coupling and magnetic moment of D ∗ meson journal, August 2011

Precision Study of B* B Coupling for the Static Heavy-Light Meson journal, February 2007

Neutral B-meson mixing from full lattice QCD at the physical point text, January 2019

CP violation and the CKM matrix: assessing the impact of the asymmetric B factories
journal, May 2005

The 2004 UTfit collaboration report on the status of the unitarity triangle in the standard model
journal, July 2005

Lattice QCD inputs to the CKM unitarity triangle analysis
journal, February 2010

Chiral perturbation theory for SU(3) breaking in heavy-meson systems
journal, November 1992

Quenched chiral perturbation theory for heavy-light mesons
journal, May 1996

First lattice QCD estimate of the $g_{D^{*} D π}$ coupling
journal, October 2002

Lattice measurement of the couplings and g _{B * B}
journal, February 2004

Determination of $B^{*} B π$ coupling in unquenched lattice QCD
journal, May 2008

Calculation of the heavy-hadron axial couplings $g_{1}$ , $g_{2}$ , and $g_{3}$ using lattice QCD
journal, June 2012

Precision lattice QCD computation of the $B^{⁎} B π$ coupling
journal, January 2015

First Measurement of Γ(D*+)
journal, November 2001

First measurement of $Γ {(D}^{* +})$ and precision measurement of $m_{D^{* +}} - m_{D^{0}}$
journal, January 2002

Measurement of the $D^{} (2010)^{+}$ Meson Width and the $D^{} (2010)^{+} - D^{0}$ Mass Difference
journal, September 2013

Erratum: Measurement of the $D^{} (2010)^{+}$ Meson Width and the $D^{} (2010)^{+} - D^{0}$ Mass Difference [Phys. Rev. Lett. 111 , 111801 (2013)]
journal, October 2013

Measurement of the $D^{} (2010)^{+}$ natural linewidth and the $D^{} (2010)^{+} - D^{0}$ mass difference
journal, September 2013

Erratum: Measurement of the $D^{} (2010)^{+}$ natural linewidth and the $D^{} (2010)^{+} - D^{0}$ mass difference [Phys. Rev. D 88 , 052003 (2013)]
journal, October 2013

On the coupling of heavy mesons to pions in QCD
journal, November 1994

$D^{}$ D π and $B^{}$ B π couplings in QCD
journal, June 1995

couplings and within a in full QCD
journal, January 1996

QCD interactions of heavy mesons with pions by light-cone sum rules
journal, July 1998

Heavy-quark symmetry and chiral dynamics
journal, August 1992

Chiral perturbation theory for hadrons containing a heavy quark
journal, April 1992

Phenomenology of heavy meson chiral lagrangians
journal, March 1997

Physical results from $2 + 1$ flavor domain wall QCD and SU(2) chiral perturbation theory
journal, December 2008

Continuum limit physics from $2 + 1$ flavor domain wall QCD
journal, April 2011

Renormalization group improved action for SU(3) lattice gauge theory and the string tension
journal, August 1984

A method for simulating chiral fermions on the lattice
journal, August 1992

Chiral fermions from lattice boundaries
journal, September 1993

Nonperturbative tuning of an improved relativistic heavy-quark action with application to bottom spectroscopy
journal, December 2012

$B$ -meson decay constants from $2 + 1$ -flavor lattice QCD with domain-wall light quarks and relativistic heavy quarks
journal, March 2015

$B \to π ℓ ν$ and $B_{s} \to K ℓ ν$ form factors and $| V_{u b} |$ from $2 + 1$ -flavor lattice QCD with domain-wall light quarks and relativistic heavy quarks
journal, April 2015

An effective field theory for the calculation of matrix elements involving heavy quarks
journal, January 1990

Axial Couplings and Strong Decay Widths of Heavy Hadrons
journal, April 2012

Simulating heavy quarks
journal, January 1992

Massive fermions in lattice gauge theory
journal, April 1997

Relativistic Heavy Quarks on the Lattice
journal, March 2003

Relativistic heavy quark effective action
journal, October 2007

Improved continuum limit lattice action for QCD with wilson fermions
journal, September 1985

Nonperturbatively determined relativistic heavy quark action
journal, October 2007

The Chroma Software System for Lattice QCD
journal, March 2005

Axial couplings in heavy-hadron chiral perturbation theory at the next-to-leading order
journal, November 2011

Review of Particle Physics
journal, July 2012

Continuum limit and improved action in lattice theories
journal, September 1983

New lattice action for heavy quarks
journal, July 2008

D ∗→Dπ and D ∗→Dγ decays: axial coupling and magnetic moment of D ∗ meson
journal, August 2011

Precision Study of B* B Coupling for the Static Heavy-Light Meson
journal, February 2007

Neutral B-meson mixing from full lattice QCD at the physical point
text, January 2019