Searching for Lee-Wick Gauge Bosons at the LHC

Journal Article · Mon Apr 30 04:00:00 EDT 2007 · Journal of High Energy Physics (JHEP)

DOI:https://doi.org/10.1088/1126-6708/2007/06/070· OSTI ID:903006

Rizzo, Thomas G

In an extension of the Standard Model(SM) based on the ideas of Lee and Wick, Grinstein, O'Connell and Wise have found an interesting way to remove the usual quadratically divergent contributions to the Higgs mass induced by radiative corrections. Phenomenologically, the model predicts the existence of Terascale, negative-norm copies of the usual SM fields with rather unique properties: ghost-like propagators and negative decay widths, but with otherwise SM-like couplings. The model is both unitary and causal on macroscopic scales. In this paper we examine whether or not such states with these unusual properties can be uniquely identified as such at the LHC. We find that in the extended strong and electroweak gauge boson sector of the model, which is the simplest one to analyze, such an identification can be rather difficult. Observation of heavy gluon-like resonances in the dijet channel offers the best hope for this identification.

• Research Organization: Stanford Linear Accelerator Center (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 903006
• Report Number(s): SLAC-PUB-12481; arXiv:0704.3458
• Journal Information: Journal of High Energy Physics (JHEP), Journal Name: Journal of High Energy Physics (JHEP)
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
PARTICLE DECAY
Phenomenology-HEP
HEPPH
HEPTH
RADIATIVE CORRECTIONS
STRONG INTERACTIONS
WEAK INTERACTIONS