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Identify the density-wave order (wavevector, moment arrangement, altermagnetic or not) and determine whether its quantum critical fluctuations drive pairing. An answer is a refined magnetic structure and pressure phase diagram from neutron scattering, muSR or NMR under pressure, plus a gap-symmetry measurement in the superconducting phase.","problem_ref":"b9111bae86cde02b0aff9fe1829638c463123dd1197171c3d76975f6837491d8","references":"","settled_by":"Magnetic structure determination at ambient pressure followed under pressure to the superconducting dome, with gap structure from penetration depth or NMR under pressure.","status_note":"An altermagnetic ground state of the distorted structure was proposed in 2025 (Nature Communications); the order under pressure near the superconducting dome is unmeasured.","title":"Density-wave order and pairing in pressurized 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