ep - p h / 99 01 20 9 v 3 9 F eb 1 99 9 SLAC - PUB - 8036 December 1998 More and More Indirect Signals for Extra Dimensions at More and More Colliders
نویسنده
چکیده
It has been recently suggested by Arkani-Hamed, Dimopoulos and Dvali that gravity may become strong at energies not far above the electroweak scale and thus remove the hierarchy problem. Such a scenario can be tested at both present and future accelerators since towers of Kaluza-Klein gravitons and associated scalar fields now play an important phenomenological role. In this paper we examine several processes for their sensitivity to a low scale for quantum gravity including deep inelastic ep scattering at HERA, high precision low energy νN scattering, Bhabha and Moller scattering at linear colliders and both fermion and gluon pair production at γγ colliders. ∗Work supported by the Department of Energy, Contract DE-AC03-76SF00515
منابع مشابه
ar X iv : h ep - p h / 99 10 25 5 v 1 6 O ct 1 99 9 SLAC - PUB - 8238 October 1999 Indirect Collider Tests for Large Extra
We review the capability of colliders to detect the virtual exchange of Kaluza-Klein towers of gravitons within the low scale quantum gravity scenario of Arkani-Hamed, Dimopoulos and Dvali.
متن کاملar X iv : h ep - p h / 00 02 04 1 v 1 3 F eb 2 00 0 SLAC - PUB - 8351 February , 2000 Theoretical Summary Lecture for EPS HEP 99
This is the proceedings article for the concluding lecture of the 1999 High Energy Physics Conference of the European Physical Society. In this article, I review a number of topics that were highlighted at the meeting and have more general importance in high energy physics. The major topics discussed are (1) precision electroweak physics, (2) CP violation, (3) new directions in QCD, (4) supersy...
متن کاملar X iv : h ep - p h / 99 09 23 2 v 3 9 S ep 1 99 9 SLAC - PUB - 8218 September 1999 Testing
With one extra dimension, current high precision electroweak data constrain the masses of the first Kaluza-Klein excitations of the Standard Model gauge fields to lie above ≃ 4 TeV. States with masses not much larger than this should be observable at the LHC. However, even for first excitation masses close to this lower bound, the second set of excitations will be too heavy to be produced thus ...
متن کاملar X iv : h ep - p h / 99 07 34 7 v 1 1 4 Ju l 1 99 9 SLAC – PUB – 8197 July 1999 Compton Scattering at the NLC and Large Extra Dimensions ∗
We study Compton scattering, γ e → γ e, in the context of the recent proposal for Weak Scale Quantum Gravity (WSQG) with large extra dimensions. It is shown that, with an ultraviolet cutoff M S ∼ 1 TeV for the effective gravity theory, the cross section for this process at the Next Linear Collider (NLC) deviates from the prediction of the Standard Model significantly. Our results suggest that, ...
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