Self Coupling of the Higgs boson in the processes $pp\to ZHHH+X$ and $pp\to WHHH+X$

Abstract

To gain some sense about the likelihood of measuring the Higgs boson quartic coupling, we calculate the contribution to the triple Higgs production cross section from the subprocesses $q\bar{q}\to ZHHH$ and $q{\bar{q}}^{\prime }\to WHHH$. Our results illustrate that determining this coupling, or even providing experimental evidence that it exists, will be very difficult.

Comments: 8 pages, 8 figures, additional references, additional figure