Top-Squark Study at a Futuree+e−Linear Collider | Zendy

Ryuichiro Kitano | Zendy; Takeo Moroi | Zendy; Shufang Su | Zendy

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Top-Squark Study at a Futuree⁺e⁻Linear Collider

Author(s) -

Ryuichiro Kitano,

Takeo Moroi,

Shufang Su

Publication year - 2002

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2002/12/011

Subject(s) - neutralino , physics , particle physics , collider , gaugino , nuclear physics , production (economics) , supersymmetry , minimal supersymmetric standard model , mixing (physics) , quantum mechanics , economics , macroeconomics

We discuss a potential of studying the production and the decay of thelightest top squark (t-tilde_1) in the framework of the supersymmetric standardmodel at a future e^+e^- collider. In particular, we consider the processt-tilde_1 -> t chi^0_1 (with chi^0_1 being the lightest neutralino) followed byt -> bW. It is shown that, by the study of the angular distribution of thebottom quark (as well as the production cross section of the top squark),properties of chi_1^0 can be extracted. We also discuss that, if chi^0_1 isgaugino-like, the neutralino mixing parameters (i.e., the so-calledmu-parameter and tan beta) may be constrained.Comment: 18 pages, 8 figures, reference and footnote adde

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