English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We re-examine the fine tuning problem of the Higgs mass, when anantisymmetric two form Kalb-Ramond (KR) field is present in the bulk of aRandall-Sundrum (RS) braneworld. Taking into account the back-reaction of theKR field, we obtain the exact correction to the RS metric. The modified metricalso warps the Higgs mass from Planck scale (in higher dimension) to TeV scale(on the visible brane) for a range of values of $kr$ exceeding the original RSvalue (where $k=$ Planck mass and $r=$ size of extra dimension). However, itrequires an extraordinary suppression of the KR field density, indicating there-appearence of the fine tuning problem in a different guise. The newspacetime also generates a small negative cosmological constant on the visiblebrane. These results are particularly relevant for certain string based models,where the KR field is unavoidably present in the bulk. We further show thatsuch a bulk antisymmetric KR field fails to stabilize the braneworld.Comment: 4 Pages, Revtex, 1 figure. Important changes and addition. Version to  appear in Class. Quant. Grav. Letter

Readdressing the hierarchy problem in a Randall–Sundrum scenario with bulk Kalb–Ramond background