Title of article :
Recent result from E821 experiment on muon g−2 and unconstrained minimal supersymmetric Standard Model
Author/Authors :
Shinji Komine، نويسنده , , Takeo Moroi، نويسنده , , Masahiro Yamaguchi، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Pages :
6
From page :
93
To page :
98
Abstract :
Recently, the E821 experiment at the Brookhaven National Laboratory announced their latest result of their muon g−2 measurement which is about 2.6-σ away from the standard model prediction. Taking this result seriously, we examine the possibility to explain this discrepancy by the supersymmetric contribution. Our analysis is performed in the framework of the unconstrained supersymmetric standard model which has free seven parameters relevant to muon g−2. We found that, in the case of large tanβ, sparticle masses are allowed to be large in the region where the SUSY contribution to the muon g−2 is large enough, and hence the conventional SUSY search may fail even at the LHC. On the contrary, to explain the discrepancy in the case of small tanβ, we found that (i) sleptons and SU(2)L gauginos should be light, and (ii) negative search for the Higgs boson severely constrains the model in the framework of the mSUGRA and gauge-mediated model.
Journal title :
PHYSICS LETTERS B
Serial Year :
2001
Journal title :
PHYSICS LETTERS B
Record number :
914116
Link To Document :
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