کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1843050 1031504 2013 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
NMSSM with gravitino dark matter to be tested at LHC
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
NMSSM with gravitino dark matter to be tested at LHC
چکیده انگلیسی
We present a solution to the gravitino problem, which arises in the NMSSM, allowing for sparticle spectra from ordinary gravity-mediated supersymmetry breaking with weak-scale gravitino dark matter. The coupling, which links the singlet to the MSSM sector, enhances the tree-level Higgs mass, providing an attractive explanation why the observed Higgs boson is so heavy. The same coupling induces very efficient pair-annihilation processes of the neutralino NLSP. Its relic abundance can be sufficiently suppressed to satisfy the strong constraints on late decaying relics from primordial nucleosynthesis - even for very long neutralino lifetimes. The striking prediction of this scenario is the detection of a pseudoscalar Higgs boson in the search for top-top resonances at LHC-14, rendering it completely testable.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 877, Issue 2, 11 December 2013, Pages 419-440
نویسندگان
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