DOI 10.1007/s100520000248
Can the trilinear Higgs self-coupling be measured
at future linear colliders?
Rutherford Appleton Laboratory,
Chilton, Didcot, Oxon OX11 0QX, UK
Received: 20 September 1999 / Published online: 6 March 2000 - © Springer-Verlag 2000
Abstract
We assess the possibility of measuring the trilinear self-coupling
of the Standard Model Higgs boson
at future electron-positron linear colliders with centre-of-mass
energies between 500 and 1500 GeV. We consider rather light Higgs
scalars, with mass below the W+W- threshold, produced in the double
Higgs-strahlung channel
and decaying via the dominant
mode
.
Assuming ideal vertex tagging of the heavy-quark
jets and mass reconstruction of the Z boson produced in association with
the Higgs pair, we compare the yield of the above process
to those of all irreducible electroweak and strong backgrounds
proceeding through a
intermediate state.
Total cross sections and differential spectra of phenomenological
relevance to the selection and analysis
of the signal are given and discussed.
Copyright Società Italiana di Fisica, Springer-Verlag 2000
