کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9860945 1528975 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel braneworld model with a bulk scalar field
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
A novel braneworld model with a bulk scalar field
چکیده انگلیسی
We consider a new braneworld model with a bulk scalar field coupled to gravity. The bulk scalar action is inspired by the proposed low energy effective action around the tachyon vacuum. A class of warped geometries representing solutions of this Einstein-scalar system for a specific scalar potential is found. The geometry is non singular with a decaying warp factor and a negative Ricci curvature. The solution of the hierarchy problem is obtained using this type of warping. Though qualitatively similar to the usual Randall-Sundrum I model there are interesting quantitative differences. Additionally, in the RS II set-up the graviton zero mode as well as spin-half massless fermions are found to be localised on the brane.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 623, Issues 3–4, 15 September 2005, Pages 244-250
نویسندگان
, ,