$\eta'$ mass and chiral symmetry breaking at large Nc and Nf - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review Letters Year : 2001

$\eta'$ mass and chiral symmetry breaking at large Nc and Nf

Abstract

We propose a method for implementing the large-Nc, large-Nf limit of QCD at the effective Lagrangian level. Depending on the value of the ratio Nf/Nc, different patterns of chiral symmetry breaking can arise, leading in particular to different behaviors of the eta-prime mass in the combined large-N limit.

Dates and versions

in2p3-00019225 , version 1 (16-07-2001)

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Cite

L. Girlanda, J. Stern, P. Talavera. $\eta'$ mass and chiral symmetry breaking at large Nc and Nf. Physical Review Letters, 2001, 86, pp.5828-5861. ⟨in2p3-00019225⟩
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