Two-Color Gauge Theory with Novel Infrared Behavior

Appelquist, T, Brower, RC, Buchoff, MI, Cheng, M, Fleming, GT, Kiskis, J, Lin, MF, Neil, ET, Osborn, JC, Rebbi, C
et al (show 6 more authors) (2014) Two-Color Gauge Theory with Novel Infrared Behavior. PHYSICAL REVIEW LETTERS, 112 (11). 111601-.

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Using lattice simulations, we study the infrared behavior of a particularly interesting SU(2) gauge theory, with six massless Dirac fermions in the fundamental representation. We compute the running gauge coupling derived nonperturbatively from the Schrödinger functional of the theory, finding no evidence for an infrared fixed point up through gauge couplings g(2) of order 20. This implies that the theory either is governed in the infrared by a fixed point of considerable strength, unseen so far in nonsupersymmetric gauge theories, or breaks its global chiral symmetries producing a large number of composite Nambu-Goldstone bosons relative to the number of underlying degrees of freedom. Thus either of these phases exhibits novel behavior.

Item Type: Article
Additional Information: six pages, 4 figures
Uncontrolled Keywords: Lattice Strong Dynamics Collaboration
Depositing User: Symplectic Admin
Date Deposited: 13 Mar 2020 14:36
Last Modified: 18 Jan 2023 23:57
DOI: 10.1103/PhysRevLett.112.111601
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