Probing the {ital H}{sup 3} vertex in {ital e}{sup +}{ital e}{sup {minus}}, {gamma}{ital e}, and {gamma}{gamma} collisions for light and intermediate Higgs bosons

Journal Article · Sun Dec 01 04:00:00 EST 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.6717· OSTI ID:397747

Ilyin, V A; Pukhov, A E ^[1]; Kurihara, Y; Shimizu, Y ^[2]; Kaneko, T ^[3]

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1. Institute of Nuclear Physics, Moscow State University, 119899 Moscow (Russia)
2. National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki 305 (Japan)
3. Meiji-Gakuin University, Kamikurata, Totsuka 244 (Japan)

We study double Higgs boson production at future linear colliders while paying special attention to the option of high-energy and high-luminosity photon beams. The main purpose is to examine the feasibility of {ital e}{sup +}{ital e}{sup {minus}}, {gamma}{ital e}, and {gamma}{gamma} colliders in order to establish bounds on the value of triple Higgs coupling, which could be crucial for understanding a spontaneous breaking mechanism. We consider mainly those cases of light and intermediate Higgs bosons, including an analysis of the electroweak backgrounds. The mass range {ital M}{sub {ital H}}{approximately}{ital M}{sub {ital Z}} is discussed separately. It is shown that for a light Higgs boson the {ital H}{sup 3} coupling can be visible, even at a future linear {ital e}{sup +}{ital e}{sup {minus}} collider at 500 GeV. For an intermediate Higgs boson, a collider with TeV energies is suitable for investigations. We estimate the bounds on the anomalous {ital H}{sup 3} coupling which can be experimentally established at future linear colliders. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 397747
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 11 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COUPLING
ELECTRON-POSITRON INTERACTIONS
HIGGS BOSONS
MASS
PARTICLE PRODUCTION
PHOTON BEAMS
PHOTON-ELECTRON INTERACTIONS
PHOTON-PHOTON INTERACTIONS
SYMMETRY BREAKING
VERTEX FUNCTIONS