Study of Chargino-Nutralino Pair Production like Higgsinos and Gauginos at The LHC with Three Leptons Final State and Missing Transverse Momentum
Ezzelarab, N., Ali Abdelalim, A., Sirag, M. (2022). Study of Chargino-Nutralino Pair Production like Higgsinos and Gauginos at The LHC with Three Leptons Final State and Missing Transverse Momentum. EKB Journal Management System, 39(1), 31-46. doi: 10.21608/jsrs.2022.275771
Nada Hussein Ezzelarab; Ahmed Ali Abdelalim; M.M. Sirag. "Study of Chargino-Nutralino Pair Production like Higgsinos and Gauginos at The LHC with Three Leptons Final State and Missing Transverse Momentum". EKB Journal Management System, 39, 1, 2022, 31-46. doi: 10.21608/jsrs.2022.275771
Ezzelarab, N., Ali Abdelalim, A., Sirag, M. (2022). 'Study of Chargino-Nutralino Pair Production like Higgsinos and Gauginos at The LHC with Three Leptons Final State and Missing Transverse Momentum', EKB Journal Management System, 39(1), pp. 31-46. doi: 10.21608/jsrs.2022.275771
Ezzelarab, N., Ali Abdelalim, A., Sirag, M. Study of Chargino-Nutralino Pair Production like Higgsinos and Gauginos at The LHC with Three Leptons Final State and Missing Transverse Momentum. EKB Journal Management System, 2022; 39(1): 31-46. doi: 10.21608/jsrs.2022.275771

Study of Chargino-Nutralino Pair Production like Higgsinos and Gauginos at The LHC with Three Leptons Final State and Missing Transverse Momentum

Journal of Scientific Research in Science
Article 4, Volume 39, Issue 1, December 2022, Page 31-46  XML PDF (1.54 MB)
DOI: 10.21608/jsrs.2022.275771
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Authors
Nada Hussein Ezzelarab email 1; Ahmed Ali Abdelalim2; M.M. Sirag3
1Department of physics, faculty of women for art science and education, ain shams university, cairo, egypt
2Center for Fundamental Physics, Zewail City of Science and Technology, 6 October City, Giza 12588, Egypt. Physics Department, Faculty of Science, Helwan University, Cairo, Egypt.
3Physics Department, Faculty of Women for Arts, Science and Education, Ain-Shams University, Cairo, 11757, Egypt.
Abstract
The calculation of chargino-nutralino pair production at the LHC with √s = 14 TeV had been studied. Different benchmark points are evaluated for the chargino-nutralino pair production using MSSM for four conditions on mass parameters.  The results were compared with the latest data recorded by the LHC at √(s) = 8, 13, 14 TeV for pp collisions. In the minimal supersymmetric extension of the SM (MSSM) the mass parameters for the bino, wino, and higgsino states represented by M1, M2, and µ. Our results depend on the nature of the chargino-nutralino pair production and its masses. In case of light higgsino like sleptons the total cross section produced at small x, while for gauginos like s-quarks produced at large x due to the fact that gaugino constrained by CMS and ATLAS as heavier than 1 TeV. Assuming that the lightest supersymmetric particle (LSP) x ̃_1^0 is stable with R-parity conservation, it is a well-motivated to viable dark-matter candidate. Two scenarios of chargino-nutralino pair production are considered in this search. The first scenario Gaugino like with two conditions on the wino-bino and higgsino mass parameters [(M1 < M2 < µ) and (M1 < M2 < −µ)]. The second scenario Higgsino like with two conditions on the wino-bino and higgsino mass parameters [(M1 < −µ < M2) and (−µ < M1 < M2)]. Also, the effect of the sign and value of µ on the total cross sections for higgsinos and gauginos was represented.
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