Ghosts- and tachyon-free regions of the Randall-Sundrum model parameter space

Wojcik, G. N.; Hewett, J. L.; Rizzo, T. G.

doi:10.1007/jhep07(2018)117

Title: Ghosts- and tachyon-free regions of the Randall-Sundrum model parameter space

Journal Article · Wed Jul 18 00:00:00 EDT 2018 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/jhep07(2018)117· OSTI ID:1463325

Wojcik, G. N. ^[1]; Hewett, J. L. ^[1]; Rizzo, T. G. ^[1]

SLAC National Accelerator Lab., Menlo Park, CA (United States)

Model building within the Randall-Sundrum (RS) framework generally involves placing the Standard Model fields in the bulk. Such fields may possess non-zero values for their associated brane-localized kinetic terms (BLKTs) in addition to possible bulk mass parameters. Here in this paper we clearly identify the regions of the RS model parameter space where the presence of bulk mass terms and BLKTs yield a setup which is free from both ghost and tachyon instabilities. Such physically acceptable parameter space regions can then be used to construct realistic and phenomenologically viable RS models.

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Research Organization:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1463325

Report Number(s):: SLAC-PUB-17155; PII: 8654; TRN: US1902280

Journal Information:: Journal of High Energy Physics (Online), Vol. 2018, Issue 7; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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