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Particle Physics

73 published articlesPart of Quantum & Particle Physics

Latest in Particle Physics

Quantum & Particle PhysicsParticle PhysicsPreprint

Three-loop QCD calculation hints at higher inclusive Vub value

A new theoretical study reports three-loop heavy-to-light QCD form factors and uses them to supply higher-order inputs for inclusive B-decay calculations. Its preliminary semileptonic result points to a lower partial rate and a possible rise in the inclusive Vub value, while the perturbative tail and full uncertainty analysis remain unfinished.

Scientific publication4 min read

Quantum & Particle PhysicsParticle PhysicsPreprint

Preprint reports extra tetraquark resonances with a fuller basis

A preprint study reports that a fuller set of Jacobi coordinates changed the predicted tetraquark spectrum, revealing additional resonance poles in strange-charm and double-charm calculations. It also reports bound states in heavier systems and fully charmed poles associated with X(6900) and X(7200), subject to model-specific uncertainty.

Scientific publication4 min read