Probing CP-violating higgs contributions in γγ→ff¯

Godbole, Rohini M. ; Kraml, Sabine ; Rindani, Saurabh D. ; Singh, Ritesh K. (2007) Probing CP-violating higgs contributions in γγ→ff¯ Pramana - Journal of Physics, 69 (5). pp. 771-775. ISSN 0304-4289

PDF - Publisher Version

Official URL:

Related URL:


We discuss the use of fermion polarization for studying neutral Higgs bosons at a photon collider. To this aim we construct polarization asymmetries which can isolate the contribution of a Higgs boson φ in γγ→ ff, f=τ/t, from that of the QED continuum. This can help in getting information on the γγφ coupling in case φ is a CP eigenstate. We also construct CP-violating asymmetries which can probe CP mixing in case φ has indeterminate CP. Furthermore, we take the MSSM with CP violation as an example to demonstrate the potential of these asymmetries in a numerical analysis. We find that these asymmetries are sensitive to the presence of a Higgs boson as well as its CP properties over a wide range of MSSM parameters.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:CP-violating Higgs; Polarization; Photon Collider
ID Code:14406
Deposited On:12 Nov 2010 09:16
Last Modified:16 May 2016 23:24

Repository Staff Only: item control page