8 papers
Quantum discontinuity between zero and infinitesimal graviton mass with a Lambda term
F. A. Dilkes, M. J. Duff, James T. Liu +1
We show that the recently demonstrated absence of the usual discontinuity for massive spin 2 with a Lambda term is an artifact of the tree approximation, and that the discontinuity…
Unstable particle mixing and CP violation in weak decays
Jiang Liu, Gino Segrè
We discuss unstable particle mixing in CP-violating weak decays. It is shown that for a completely degenerate system unstable particle mixing does not introduce a CP-violating part…
Testing the handedness of a heavy at future hadron colliders
Mirjam Cvetiič, Paul Langacker, Jiang Liu
We show that the associated production , and the rare decay are useful tests of couplings to fermions at future hadron collider…
Re-Examination of Generation of Baryon and Lepton Number Asymmetries by Heavy Particle Decay
Jiang Liu, Gino Segre
It is shown that wave function renormalization can introduce an important contribution to the generation of baryon and lepton number asymmetries by heavy particle decay. These term…
Particle Width Effect on -Violating Asymmetries
Jiang Liu
-violating asymmetries calculated from the Breit-Wigner approximation for unstable particle propagators violate . A formalism satisfying invariance and unitarity is p…
Final-State-Interaction Simulation of T-Violation in the Top-Quark Semileptonic Decay
Jiang Liu
The standard electroweak final-state interaction induces a false T-odd correlation in the top-quark semileptonic decay. The correlation parameter is calculated in the standard mode…