General one-loop formulas for decay

L. T. Hue; A. B. Arbuzov; T. T. Hong; T. Phong Nguyen; D. T. Si; H. N. Long

doi:10.1140/epjc/s10052-018-6349-0

EPJ

General one-loop formulas for decay $h\rightarrow Z\gamma$

L. T. Hue¹^,2, A. B. Arbuzov²^,3, T. T. Hong⁴^,5, T. Phong Nguyen⁶, D. T. Si⁷ and H. N. Long⁸^,9^*

¹ Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Hanoi, Vietnam
² Bogoliubov Laboratory for Theoretical Physics, Joint Institute for Nuclear Researches, Dubna, Russia
³ Department of Higher Mathematics, Dubna State University, Dubna, Russia
⁴ Department of Physics, An Giang University, Ung Van Khiem Street, Long Xuyen, An Giang, Vietnam
⁵ Department of Physics, Hanoi Pedagogical University 2, Phuc Yen, Vinh Phuc, Vietnam
⁶ Department of Physics, Cantho University, 3/2 Street, Ninh Kieu, Cantho, Vietnam
⁷ Department of Education and Training of Can Tho City, No 39, 3/2 Street, Can Tho, Vietnam
⁸ Theoretical Particle Physics and Cosmology Research Group, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
⁹ Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam

Received: 26 July 2018
Accepted: 16 October 2018
Published online: 31 October 2018

Abstract

Radiative corrections to the decay $h\rightarrow Z\gamma$ are evaluated in the one-loop approximation. The unitary gauge is used. The analytic result is expressed in terms of the Passarino-Veltman functions. The calculations are applicable for the Standard Model as well for a wide class of its gauge extensions. In particular, the decay width of a charged Higgs boson $H^{\pm }\rightarrow W^{\pm }\gamma$ can be derived. The consistence of our formulas and several specific earlier results is shown.

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General one-loop formulas for decay

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General one-loop formulas for decay $h\rightarrow Z\gamma$