Probing CP-violating Higgs contributions

Pramana

Ritesh K Singh4⁴  Sabine Kraml²  Saurabh D Rindani³  Rohini M Godbole¹ 

[1] Center for High Energy Physics, Indian Institute of Science, Bangalore 560 012, India$$;Theory Division, Department of Physics, CERN, Switzerland$$;Physical Research Laboratory, Ahmedabad 380 009, India$$;Laboratoire de Physique Théoretique, 91405 Orsay Cedex, France$$

关键词: CP-violating Higgs;    polarization;    photon collider.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

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 𝛾 𝛾 → $far{f}$, 𝑓 = 𝜏/𝑡, from that of the QED continuum. This can help in getting information on the 𝛾 𝛾 𝜙 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.

【 授权许可】

Unknown