2020   04   en   p.19-27 S.K. Abdullayev, M.Sh. Gojayev, A.K. Gulayeva,
The production of a chargino pair in polarized lepton-antilepton collisions (II)		  pdf 

ABSTRACT

Within the framework of the Minimal Supersymmetric Standard Model, the process of annihilation of a lepton-antilepton pair into a pair of charginos is considered: 𝓁 -+𝓁 + → χ̃𝑖- + χ̃𝒋+. Taking into account the polarization states of the lepton-antilepton pair and the chargino, an analytical expression is obtained for the effective cross section of the process. Diagrams with the exchange of Higgs bosons, H, h, A, and scalar neutrinos ν̃L are considered in detail. The longitudinal and transverse spin asymmetries caused by the polarizations of the lepton and antilepton, as well as the degrees of the longitudinal and transverse polarization of the chargino, are determined. It is found that the longitudinal spin asymmetry arising from the interaction of polarized leptons with unpolarized antileptons is equal to the longitudinal spin asymmetry arising from the interaction of polarized antileptons with unpolarized leptons.

Keywords: Minimal Supersymmetric Standard Model, Higgs boson, lepton-antilepton pair, chargino, longitudinal spin asymmetry, transverse spin asymmetry.
PACS: 12.10.−g, 12.15.-у, 12.60.−i, 14.80.Ly, 14.70.Bh, 14.70.Нр

Received: 17.11.2020

AUTHORS & AFFILIATIONS

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

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