TY - JOUR
T1 - Less minimal supersymmetric standard model
AU - De Gouvêa, André
AU - Friedland, Alexander
AU - Murayama, Hitoshi
PY - 1999/4/6
Y1 - 1999/4/6
N2 - Most of the phenomenological studies of supersymmetry have been carried out using the so-called minimal supergravity scenario, where one assumes a universal scalar mass, gaugino mass, and trilinear coupling at (Formula presented) Even though this is a useful simplifying assumption, it is too restrictive to accommodate a large variety of phenomenological possibilities. It predicts that the lightest supersymmetric particle (LSP) is an almost pure B-ino. We extend the minimal scenario by introducing one extra parameter: the Fayet-Iliopoulos D term for (Formula presented) (Formula presented) and find a much more diverse phenomenology, where the LSP is (Formula presented) (Formula presented) or a Higgsino-like neutralino. We discuss the relevance of the different possibilities to collider signatures.
AB - Most of the phenomenological studies of supersymmetry have been carried out using the so-called minimal supergravity scenario, where one assumes a universal scalar mass, gaugino mass, and trilinear coupling at (Formula presented) Even though this is a useful simplifying assumption, it is too restrictive to accommodate a large variety of phenomenological possibilities. It predicts that the lightest supersymmetric particle (LSP) is an almost pure B-ino. We extend the minimal scenario by introducing one extra parameter: the Fayet-Iliopoulos D term for (Formula presented) (Formula presented) and find a much more diverse phenomenology, where the LSP is (Formula presented) (Formula presented) or a Higgsino-like neutralino. We discuss the relevance of the different possibilities to collider signatures.
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U2 - 10.1103/PhysRevD.59.095008
DO - 10.1103/PhysRevD.59.095008
M3 - Article
AN - SCOPUS:17544375430
SN - 1550-7998
VL - 59
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 9
ER -