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Inverse meson mass ordering in color-flavor-locking phase of high density QCD
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We derive the effective Lagrangian for the low-energy massive meson excitations of the color-flavor-locking (CFL) phase of QCD with 3 flavors of light quarks. We compute the decay constants, the maximum velocities, and the masses of the mesons at large baryon chemical potential mu. The decay constants are linear in mu. The meson maximum velocities are close to that of sound. The meson masses in the CFL phase are significantly smaller than in the normal QCD vacuum and depend only on bare quark masses. The order of the meson masses is, to some extent, reversed compared to that in the QCD vacuum. In particular, the lightest particle is eta'.
Forward citations
Cited by 2 Pith papers
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Relativistic Cooper pairing in the microscopic limit of chiral random matrix theory
A new non-Hermitian chiral random matrix model exhibits color-flavor locking for three flavors and the two-flavor color-superconducting phase for two flavors in the microscopic large-N limit.
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Continuity from neutron matter to two-flavor quark matter with $^1 S_0$ and $^3 P_2$ superfluidity
The paper proposes that neutron 1S0 and 3P2 superfluidity map continuously to scalar and 3P2 d-quark pairing in a 2SC+⟨dd⟩ quark matter phase, extending quark-hadron continuity to two flavors.
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