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The stability of the modular field in a warped brane world scenario has beena subject of interest for a long time. Goldberger \& Wise ( GW ) proposed amechanism to achieve this by invoking a massive scalar field in the bulkspace-time neglecting the back-reaction. In this work, we examine thepossibility of stabilizing the modulus without bringing in any external scalarfield. We show that instead of flat 3-branes as considered in Randall-Sundrum (RS ) warped braneworld model, if one considers a more generalized version ofwarped geometry with de-Sitter 3-brane, then the brane vacuum energyautomatically leads to a modulus potential with a metastable minimum. Ourresult further reveals that in this scenario the gauge hierarchy problem canalso be resolved for appropriate choice of brane cosmological constant.

Modulus stabilization in a non-flat warped braneworld scenario