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Title: Determination of $${{\rm{\Lambda }}}_{\overline{{\rm{MS}}}}$$ at five loops from holographic QCD

Journal Article · · Journal of Physics. G, Nuclear and Particle Physics
 [1];  [2];  [3]
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
  3. Universidad de Costa Rica, San Jose (Costa Rica)

Here, the recent determination of the $$\beta$$--function of the QCD running coupling $$\alpha_{\overline{MS}}(Q^2)$$ to five-loops, provides a verification of the convergence of a novel method for determining the fundamental QCD parameter $$\Lambda_s$$ based on the Light-Front Holographic approach to nonperturbative QCD. The new 5-loop analysis, together with improvements in determining the holographic QCD nonperturbative scale parameter $$\kappa$$ from hadronic spectroscopy, leads to an improved precision of the value of $$\Lambda_s$$ in the $${\overline{MS}}$$ scheme close to a factor of two; we find $$\Lambda^{(3)}_{\overline{MS}}=0.339\pm0.019$$ GeV for $$n_{f}=3$$, in excellent agreement with the world average, $$\Lambda_{\overline{MS}}^{(3)}=0.332\pm0.017$$ GeV. Lastly, we also discuss the constraints imposed on the scale dependence of the strong coupling in the nonperturbative domain by superconformal quantum mechanics and its holographic embedding in anti-de Sitter space.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC05-06OR23177; AC02-76SF00515
OSTI ID:
1379486
Alternate ID(s):
OSTI ID: 1418322
Report Number(s):
JLAB-PHY-16-2312; DOE/OR/23177-3913; arXiv:1608.04933
Journal Information:
Journal of Physics. G, Nuclear and Particle Physics, Vol. 44, Issue 10; ISSN 0954-3899
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (63)

The QCD running coupling journal September 2016
On the running coupling constant in QCD journal April 2007
Connecting the hadron mass scale to the fundamental mass scale of quantum chromodynamics journal November 2015
Light-front holographic QCD and emerging confinement journal July 2015
Superconformal quantum mechanics journal January 1984
Baryon spectrum from superconformal quantum mechanics and its light-front holographic embedding journal February 2015
Superconformal baryon-meson symmetry and light-front holographic QCD journal April 2015
Hadronic Spectra and Light-Front Wave Functions in Holographic QCD journal May 2006
Light-Front Holography: A First Approximation to QCD journal February 2009
Kinematical and dynamical aspects of higher-spin bound-state equations in holographic QCD journal April 2013
Threefold complementary approach to holographic QCD journal February 2014
Superconformal Algebraic Approach to Hadron Structure journal January 2017
Universal effective hadron dynamics from superconformal algebra journal August 2016
Regge parametrization for low-energy πN scattering journal January 1971
Current Matrix Elements from a Relativistic Quark Model journal June 1971
Relativistic dynamics on a null plane journal May 1978
Covariant interactions of two spinless particles: All local solutions of the angular condition journal February 1978
Harmonic confinement: A fully relativistic approximation to the meson spectrum journal January 1978
Local spin−12 wave equations and harmonic confinement journal September 1979
Conformal invariance in quantum mechanics journal August 1976
Quantum superconformal model in (1, 2) space journal September 1983
Forms of Relativistic Dynamics journal July 1949
Quantum chromodynamics and other field theories on the light cone journal August 1998
Effective confining potentials for QCD journal October 2014
Ultraviolet Behavior of Non-Abelian Gauge Theories journal June 1973
Reliable Perturbative Results for Strong Interactions? journal June 1973
Nonperturbative QCD coupling and its β function from light-front holography journal May 2010
On the interface between perturbative and nonperturbative QCD journal June 2016
Commensurate scale relations in quantum chromodynamics journal April 1995
The generalized Crewther relation in QCD and its experimental consequences journal April 1996
Inelastic Scattering of Polarized Leptons from Polarized Nucleons journal March 1970
Experimental determination of the effective strong coupling constant journal July 2007
Determination of the effective strong coupling constant αs,g1(Q2) from CLAS spin structure function data journal July 2008
Adler Function, Bjorken Sum Rule, and the Crewther Relation to Order α s 4 in a General Gauge Theory journal March 2010
Deep Inelastic sum Rules at the Boundaries Between Perturbative and Nonperturbative qcd journal September 2005
Scaling, Duality, and the Behavior of Resonances in Inelastic Electron-Proton Scattering journal October 1970
Five-Loop Running of the QCD Coupling Constant journal February 2017
Towards the five-loop Beta function for a general gauge group journal July 2016
Strong-Coupling Constant with Flavor Thresholds at Five Loops in the Modified Minimal-Subtraction Scheme journal July 2006
Experimental Determination of the Evolution of the Bjorken Integral at Low Q 2 journal November 2004
Experimental study of isovector spin sum rules journal August 2008
High precision determination of the Q 2 evolution of the Bjorken sum journal July 2014
Analysis of nucleon electromagnetic form factors from light-front holographic QCD: The spacelike region journal January 2017
journal January 2013
Systematic All-Orders Method to Eliminate Renormalization-Scale and Scheme Ambiguities in Perturbative QCD journal May 2013
Systematic scale-setting to all orders: The principle of maximum conformality and commensurate scale relations journal January 2014
Towards the five-loop Beta function for a general gauge group text January 2016
Commensurate scale relations in quantum chromodynamics journal March 1995
Towards the five-loop Beta function for a general gauge group text January 2016
Light-Front Holography: A First Approximation to QCD text January 2008
Nonperturbative QCD Coupling and its $β$ function from Light-Front Holography text January 2010
Systematic Scale-Setting to All Orders: The Principle of Maximum Conformality and Commensurate Scale Relations text January 2013
Effective confining potentials for QCD text January 2014
High precision determination of the $Q^2$-evolution of the Bjorken Sum text January 2014
Light-Front Holographic QCD and Emerging Confinement text January 2014
Connecting the Hadron Mass Scale to the Fundamental Mass Scale of Quantum Chromodynamics text January 2014
Baryon Spectrum from Superconformal Quantum Mechanics and its Light-Front Holographic Embedding text January 2014
On the Interface between Perturbative and Nonperturbative QCD text January 2016
Universal Effective Hadron Dynamics from Superconformal Algebra text January 2016
The QCD Running Coupling text January 2016
Five-Loop Running of the QCD coupling constant text January 2016
Experimental determination of the effective strong coupling constant text January 2005
On the running coupling constant in QCD text January 2006

Cited By (10)

QCD-Constrained Dynamical Spin Effects in the Pion Holographic Light-Front Wavefunction journal February 2018
The QCD Running Coupling at All Scales and the Connection Between Hadron Masses and $$\varvec{\varLambda _s}$$ Λ s journal November 2018
The spin structure of the nucleon journal June 2019
Bjorken polarized sum rule and infrared-safe QCD couplings journal December 2018
The spin structure of the nucleon journal January 2005
The spin structure of the nucleon journal January 1994
The Spin Structure of the Nucleon: Proceeding of International School of Nucleon Structure: 1st Course conference April 2017
QCD-constrained dynamical spin effects in the pion holographic light-front wavefunction text January 2017
Universality of Generalized Parton Distributions in Light-Front Holographic QCD text January 2018
Bjorken polarized sum rule and infrared-safe QCD couplings text January 2018