Extracting anomalous gluon-top-quark effective couplings at the supercolliders
作者： D. Atwood , A. Aeppli , A. Soni
DOI: 10.1103/PHYSREVLETT.69.2754
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摘要: Production of {ital t{bar t}} by gluon fusion fullowed t}{r arrow}{ital bW}{sup +}, {bar t}}{r {minus}}, and W}{sup {plus minus}}{r e}{sup minus}}{nu}{sub e}}({bar {nu}}{sub e}}) is studied to extract the CP}-violating chromoelectric dipole moment form factor top quark. The fact that spin quark, in its rest frame, direction +} momentum facilitates analysis. Expressions for differential cross section decays are given. We find Superconducting Super Collider or Large Hadron Collider, it possible put a limit 10{sup {minus}20}{ital g}{sub s}}-to {minus}19}{ital s}} cm on these effective couplings through use optimal observables.'' Naive observables such as simple triple product correlations typically an order magnitude less effective.
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