Toward TeV conformality

We study the chiral properties of an SU(3) gauge theory with N{f} massless Dirac fermions in the fundamental representation when N{f} is increased from 2 to 6. For N{f}=2, our lattice simulations lead to a value of psi psi/F{3}, where F is the Nambu-Goldstone-boson decay constant and psi psi is the...

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Bibliographic Details
Published in:Physical review letters 2010-02, Vol.104 (7), p.071601-071601, Article 071601
Main Authors: Appelquist, T, Avakian, A, Babich, R, Brower, R C, Cheng, M, Clark, M A, Cohen, S D, Fleming, G T, Kiskis, J, Neil, E T, Osborn, J C, Rebbi, C, Schaich, D, Vranas, P
Format: Article
Language:English
Subjects:
BOSONS
CHIRALITY
COMPUTERIZED SIMULATION
CONFINEMENT
CONFORMAL INVARIANCE
CONSTRUCTIVE FIELD THEORY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
GAUGE INVARIANCE
GOLDSTONE BOSONS
INVARIANCE PRINCIPLES
LATTICE FIELD THEORY
LIE GROUPS
MASSLESS PARTICLES
PARTICLE PROPERTIES
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SIMULATION
SU GROUPS
SU-3 GROUPS
SYMMETRY GROUPS
TEV RANGE
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Summary:We study the chiral properties of an SU(3) gauge theory with N{f} massless Dirac fermions in the fundamental representation when N{f} is increased from 2 to 6. For N{f}=2, our lattice simulations lead to a value of psi psi/F{3}, where F is the Nambu-Goldstone-boson decay constant and psi psi is the chiral condensate, which agrees with the measured QCD value. For N{f}=6, this ratio shows significant enhancement, presaging an even larger enhancement anticipated as N{f} increases further, toward the critical value for transition from confinement to infrared conformality.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.104.071601