TeV scale unification in four dimensions versus extra dimensions
نویسندگان
چکیده
منابع مشابه
TeV scale unification in four dimensions versus extra dimensions
The gauge coupling constant unification at the low (O(TeV)) scale can be obtained just in four dimensions, without help of the power like renormalization group evolution in extra dimensions, due to the presence of some extra particle states at intermediate scales. We show explicit examples of such extra states in the range of 100 GeV – 1 TeV which can be easily observed on future colliders and ...
متن کاملTeV scale superstring and extra dimensions
Utilizing the idea of extra large dimensions, it has been suggested that the gauge and gravity couplings unification can happen at a scale as low as 1 TeV. In this paper, we explore this phenomenological possibility within string theory. In particular, we discuss how the proton decay bound can be satisfied in type I string theory. The string picture also suggests different scenarios of gauge an...
متن کاملExtra Spacetime Dimensions and Unification
We study the effects of extra spacetime dimensions at intermediate mass scales, as expected in string theories with large-radius compactifications, and focus on the gauge and Yukawa couplings within the Minimal Supersymmetric Standard Model. We find that extra spacetime dimensions naturally lead to the appearance of grand unified theories at scales substantially below the usual GUT scale. Furth...
متن کاملCLNS 98/1561 TeV Scale Superstring and Extra Dimensions
Utilizing the idea of extra large dimensions, it has been suggested that the gauge and gravity couplings uni cation can happen at a scale as low as 1 TeV. In this paper, we explore this possibility within string theory. In particular, we discuss how the proton decay bound can be satis ed in Type I string theory. The string picture also suggests di erent scenarios of gauge and gravitational coup...
متن کاملLooking For TeV-Scale Strings and Extra-Dimensions
In contrast to the old heterotic string case, the (weakly coupled) type I brane framework allows to have all, part or none of the standard model gauge group factors propagating in large extra–dimensions of TeV size. We investigate the main experimental signatures of these possibilities, related to the production of Kaluza-Klein excitations of gluons and electroweak gauge bosons. A discovery thr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 2001
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(01)01253-9