Author:
Bhaumik Arko,SenGupta Soumitra
Abstract
AbstractWe generalize nested multiply warped braneworld models by incorporating non-zero brane curvature caused by an effective cosmological constant $$\Omega $$
Ω
induced on the 3-branes. Starting with the doubly warped model, we first analyze the case where the maximally warped brane is identified as the visible brane. For $$\Omega <0$$
Ω
<
0
, resolution of the gauge hierarchy problem imposes a small upper bound on $$|\Omega |$$
|
Ω
|
, and can possibly lead to positivity of all the 3-brane tensions. For $$\Omega >0$$
Ω
>
0
, the latter is not possible but the tuning of the cosmological constant to its tiny observed value is linked to the tuning of the extra dimensional moduli close to the inverse Planck length, justifying the original flat brane approximation. In both regimes, we study the dependence of the scale-clustering of the pair of TeV-branes on the brane cosmological constant and hence its potential role in generating a fermion mass hierarchy between these branes. Identifying the near-maximally warped brane as the visible brane instead opens up regions in the parameter space that allow positive 3-brane tensions for both anti de Sitter and de Sitter branes, subject to non-trivial constraints on the warping parameters. We conclude by generalizing the key results to arbitrary n-fold nested warped braneworlds.
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
Reference68 articles.
1. L. Randall, R. Sundrum, Large mass hierarchy from a small extra dimension. Phys. Rev. Lett. 83, 3370 (1999). https://doi.org/10.1103/PhysRevLett.83.3370
2. W.D. Goldberger, M.B. Wise, Modulus stabilization with bulk fields. Phys. Rev. Lett. 83, 4922 (1999). https://doi.org/10.1103/PhysRevLett.83.4922
3. W.D. Goldberger, M.B. Wise, Phenomenology of a stabilized modulus, https://www.sciencedirect.com/science/article/abs/pii/S037026930000099X?via
4. I. Brevik, K.A. Milton, S. Nojiri, S.D. Odintsov, Quantum (in)stability of a brane-world $$AdS_5$$ universe at nonzero temperature, https://www.sciencedirect.com/science/article/abs/pii/S0550321301000268?via
5. A. Dey, D. Maity, S. SenGupta, Critical analysis of Goldberger-Wise stabilization of the Randall-Sundrum braneworld scenario. Phys. Rev. D 75, 107901 (2007). https://doi.org/10.1103/PhysRevD.75.107901
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献