Year: 1999
Type: article
Abstract: If supersymmetry is spontaneously broken at a low-energy scale, then the resulting gravitino will be very light. The interaction strength of the longitudinal components of such a light gravitino to the $e\ensuremath{-}\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{e}$ pair then becomes comparable to that of electroweak interactions. If such a light gravitino is present, it would significantly modify the cross section for ${e}_{L}^{\ensuremath{-}}{e}_{R}^{\ensuremath{-}}\ensuremath{\rightarrow}{e}_{L}{e}_{R}$ from its minimal supersymmetric standard model value. A precision measurement of this cross section could therefore be used to probe the low-energy supersymmetry breaking scale ${\ensuremath{\Lambda}}_{s}.$
Author: Uma Mahanta
Institution: Harish-Chandra Research Institute
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1997469979