کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1853365 1528932 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Explicit CP violation in the MSSM through Higgs →γγ
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Explicit CP violation in the MSSM through Higgs →γγ
چکیده انگلیسی
The MSSM with explicit CP violation is studied through the di-photon decay channel of the lightest neutral Higgs boson. Through the leading one-loop order H1→γγ is affected by a large number of Higgs-sparticle couplings, which could be complex. Our preliminary scan over the supersymmetric parameter space shows that more than 50% average deviations are possible, in either direction, in the corresponding branching ratio, with respect to the case of the CP-conserving MSSM. In particular, our analysis shows that in the presence of a light stop (with mass ∼200 GeV) a CP-violating phase ϕμ∼90° can render the H1→γγ branching ratio more than 10 times larger, for suitable combinations of the other MSSM parameters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 649, Issues 2–3, 31 May 2007, Pages 206-211
نویسندگان
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