Analysis of the neutralino system in supersymmetric theories
By Seong-youl Choi, J. Kalinowski, P. Zerwas, G. Moortgat-Pick. 2001
157 citations recorded by the source corpus.
Abstract. Charginos $\tilde{\chi}^\pm$ and neutralinos $\tilde{\chi}^0$ in supersymmetric theories can be produced copiously at $e^+e^-$ colliders and their properties can be measured with high accuracy. Consecutively to the chargino system, in which the SU(2) gaugino parameter $M_2$, the higgsino mass parameter $\mu$ and $\tan\beta$ can be determined, the remaining fundamental supersymmetry parameter in the gaugino/higgsino sector of the minimal supersymmetric extension of the Standard Model, the U(1) gaugino mass $M_1$, can be analyzed in the neutralino system, including its modulus and its phase in CP–noninvariant theories. The CP properties of the neutralino system are characterized by unitarity quadrangles. Analytical solutions for the neutralino mass eigenvalues and the mixing matrix are presented for CP–noninvariant theories in general. They can be written in compact form for large supersymmetric mass parameters. The closure of the neutralino and chargino systems can be studied by exploiting sum rules for the pair-production processes in $e^+e^-$ collisions. Thus the picture of the non–colored gaugino and higgsino complex in supersymmetric theories can comprehensively be reconstructed in these experiments.
Subfields: Condensed Matter Physics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/77cfedbb02b48b6d63075f5325d97f5de8051ce7
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In Nuclear and High Energy Physics
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Citations in the corpus
- The Next-to-Minimal Supersymmetric extension of the Standard Model reviewed (2009, background): “[96] to discriminate the NMSSM from the MSSM at a future electron–positron collider: the total cross section, summed over the four light neutralinos and normalized to its asymptotic form in the limit of infinite center-of-mass energies, is sensitive to the total number of neutralinos.”
- Dark Matter through the Higgs portal (2019, background): “Again, the final states will be easily identifiable thanks to the clean environment and the expected high luminosity will even allow to study their properties in great details [521,522].”