We discuss the associated W±H∓ production in pp collision for the Large Hadron Collider. A complete one-loop calculation of the loop-induced subprocess gg → W±H∓ is presented in the framework of the Minimal Supersymmetric Standard Model (MSSM), and the possible enhancement of the hadronic cross section is investigated under the constraint from the squark direct-search results and the low-energy...

We prove the vanishing of the space of 3–loop Jacobi diagrams of odd degree. This implies that no 3–loop Vassiliev invariant can distinguish between a knot and its inverse.

We briefly review the technology involved in extracting the field– theory limit of multiloop bosonic string amplitudes, and we apply it to the evaluation of simple two-loop diagrams involving scalars and gauge bosons.

A bstract We perform a systematical study of the dimension-9 short-range 0 ??? decay operators at one-loop level. There are only six genuine topologies which generate eight diagrams, and recipe to identify possible realizations is sketched. Certain hypercharge assignments excluded by absence tree-level diagrams in model. The mediators each decomposition can Majorana neutrino masses discussed up...