Eur. Phys. J. C 22, 401-410 (2001)
Heavy charged Higgs boson production at next generation collidersS. Kanemura1, S. Moretti2 and K. Odagiri3
1 Physics and Astronomy Department, Michigan State University, East Lansing, MI 48824-1116, USA
2 Theory Division, CERN, 1211 Genève 23, Switzerland
3 Theory Group, KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
(Received: 29 August 2001 / Published online: 23 November 2001 - © Springer-Verlag / Società Italiana di Fisica 2001 )
We assess the potential of future electron-positron linear colliders operating in the mode in detecting charged Higgs bosons with mass around and larger than the top quark mass, using Compton back-scattered photons from laser light. We compare the pair production mode, , to a variety of channels involving only one charged Higgs scalar in the final state, such as the tree-level processes ( and A0) and ( and ) as well as the loop-induced channel . We show that, when the charged Higgs boson mass is smaller than or comparable to half the collider energy, , single production cross sections are of the same size as the pair production rate, whereas, for charged Higgs boson masses larger than , all processes are heavily suppressed. In general, production cross sections of charged Higgs bosons via scatterings are smaller than those induced at an e+e- collider and the latter represents a better option to produce and analyse such particles.
© Società Italiana di Fisica, Springer-Verlag 2001