https://doi.org/10.1140/epjc/s10052-019-7471-3
Regular Article - Theoretical Physics
Associated production of SM Higgs with a photon in type-II seesaw models at the ILC
1
EPTHE, Faculty of Science, Ibn Zohr University, P.O.B. 8106, Agadir, Morocco
2
Faculty of Science and Technology, Abdelmalek Essaadi University, P.O.B. 416, Tangier, Morocco
3
Physics Division, National Center for Theoretical Sciences, Hsinchu, 300, Taiwan
4
MSISM Team, Polydisciplinary Faculty of Safi, Sidi Bouzid, P.O.B. 4162, Safi, Morocco
* e-mail: rahililarbi@gmail.com
Received:
17
April
2019
Accepted:
14
September
2019
Published online:
18
November
2019
We consider the production of a single Standard Model (SM) Higgs boson (
) in association with a photon at the future Linear collider (LC) in the context of a type-II seesaw model. The type-II seesaw model extends the SM particle content by adding one triple Higgs where its Higgs coupling is a key parameter of the scalar potential triggering the electroweak symmetry-breaking mechanism in the SM. It is a well motivated model since it provides neutrino masses and mixing. The LC presents a particularly interesting possibility to probe Higgs couplings due to the clean beams in the initial state. We study the one loop processes 
and 
, we show that it is possible to correlate the total cross section predictions with the couplings 
and 
which are sensitive to the presence of singly and doubly charged Higgs. For parameter points allowed by the current experimental constraints, our numerical results show that the effect of 
and 
can be as large as ± 25% with respect to the SM predictions. For both processes, we also present differential cross section for different center of mass energy.
© The Author(s), 2019
