کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1853363 | 1528932 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dilepton signatures of family non-universal U(1)â²
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
The supersymmetric models extending the minimal supersymmetric Standard Model (MSSM) by an additional Abelian gauge factor U(1)Ⲡin order to solve the μ problem do generically suffer from anomalies disrupting the gauge coupling unification found in the MSSM. The anomalies are absent if the minimal matter content necessitated by the μ problem is augmented with exotic matter species having appropriate quantum numbers. Recently, it has been shown that anomaly cancellation can also be accomplished by introducing family non-universal U(1)Ⲡcharges and non-holomorphic soft-breaking terms [D.A. Demir, G.L. Kane, T.T. Wang, Phys. Rev. D 72 (2005) 015012, hep-ph/0503290]. We discuss collider signatures of anomaly-free family non-universal U(1)Ⲡmodel by analyzing dilepton production in future colliders. We find that, both at LHC and NLC, one can establish existence/absence of such a ZⲠboson by simply comparing the number of dilepton production events for electron, muon and tau lepton. The signal is free of the SM background.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 649, Issues 2â3, 31 May 2007, Pages 191-196
Journal: Physics Letters B - Volume 649, Issues 2â3, 31 May 2007, Pages 191-196
نویسندگان
Alper Hayreter,