Can the trilinear Higgs self-coupling be measured at future linear colliders?

Miller, D.J. and Moretti, S. (2000) Can the trilinear Higgs self-coupling be measured at future linear colliders? European Physical Journal C, 13(3), pp. 459-470. (doi: 10.1007/s100520000248)

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 − W+W− threshold, produced in the double Higgs-strahlung channel e + e − →HHZ e+e−→HHZ and decaying via the dominant mode H→bb ¯ H→bb¯ . 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 bb ¯ bb ¯ Z bb¯bb¯Z intermediate state. Total cross sections and differential spectra of phenomenological relevance to the selection and analysis of the signal are given and discussed.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Miller, Dr David
• Authors: Miller, D.J., and Moretti, S.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: European Physical Journal C
• Publisher: Springer
• ISSN: 1434-6044
• ISSN (Online): 1434-6052