2021   01   en   p.45-62 S.K. Abdullayev, M.Sh. Gojayev, A.K. Gulayeva,
Neutralino pair production in polarized lepton-antilepton collisions		  pdf 

ABSTRACT

The process of producing a neutralino pair in arbitrarily polarized lepton-antilepton (electron-positron or muon-antimuon) collisions has been studied within the Minimal Supersymmetric Standard Model: 𝓁-+𝓁+ → χ̃𝑖0 + χ̃𝒋0. We consider s-channel diagrams with neutral Z-boson and Higgs-boson ( H or A ) exchanges, and t-channel diagrams with scalar 𝓁 ̃-L and 𝓁 ̃+R-lepton exchanges. General expressions for the differential and integral cross sections of the process are obtained, transverse and longitudinal spin asymmetries due to lepton-antilepton pair polarizations, and degrees of longitudinal and transverse neutralino polarization are determined. Angular and energy dependences of cross sections and polarization characteristics of the process are studied in detail.

Keywords: Standard Model, Minimal Supersymmetric Standard Model, lepton-antilepton pair, neutralino, Higgs boson, effective cross section.
PACS: 11.30.Pb, 14.80.Da, 14.70.Nb

Received: 15.02.2021

AUTHORS & AFFILIATIONS

Baku State University, Baku, Z. Khalilov st., 23, Azerbaijan, AZ 1148
E-mail: m_qocayev@mail.ru 		REFERENCIES

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