کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10725232 1034103 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Natural electroweak symmetry breaking in generalised mirror matter models
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Natural electroweak symmetry breaking in generalised mirror matter models
چکیده انگلیسی
It has recently been pointed out that the mirror or twin Higgs model is more technically natural than the standard model, thus alleviating the “little” hierarchy problem. In this Letter we generalise the analysis to models with an arbitrary number of isomorphic standard model sectors, and demonstrate that technical naturalness increases with the number of additional sectors. We consider two kinds of models. The first has N standard model sectors symmetric under arbitrary permutations thereof. The second has p left-chiral standard model sectors and p right-chiral or mirror standard model sectors, with p-fold permutation symmetries within both and a discrete parity transformation interchanging left and right. In both kinds of models the lightest scalar has an invisible width fraction 1/N, which will provide an important means of experimentally testing this class of models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 645, Issue 1, 1 February 2007, Pages 75-81
نویسندگان
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