"A Hint From the Inter-Family Mass Hierarchy: Two Vector-Like Families in the TeV range"

Details "A Hint From the Inter-Family Mass Hierarchy: Two Vector-Like Families in the TeV range" "A Hint From the Inter-Family Mass Hierarchy: Two Vector-Like Families in the TeV range"

1994-09-22

arxiv.org/abs/hep-ph/9409381v1

Phys.Rev.D51:2451-2462,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

34 pages, BA-94-46, UMD-PP-94-99

Scientific paper

10.1103/PhysRevD.51.2451

Two vector-like families with masses of order 1 TeV, one of which is a doublet of $SU(2)_L$ and the other a doublet of $SU(2)_R$, have been predicted to exist in the context of a viable and economical SUSY composite model. One of the many attractive features of the model is an explanation of the inter-family mass-hierarchy for which the existence of the two vector-families is crucial. This paper is devoted to a detailed study of the expected masses, mixings and decay modes of the fermions belonging to the two vector-like families. The masses of the vector-like quarks are expected to lie in the range of 500 GeV to about 2.5 TeV, while those of the vector-like leptons are expected to be in the range of 200 GeV to 1 TeV. Their mass pattern and decay modes exhibit certain distinguishing features and characteristic signals. For example, when the LHC and, possibly a future version of the SSC are built, pair-production of the vector-like quarks would lead to systems such as ($b\overline{b}+4Z+W^+W^-$) and ($b\overline{b}+2Z+W^+W^-$), while an $e^-e^+$ linear collider (NLC) of suitable energy can produce appreciably a single neutral heavy lepton $N$ together with $\nu_\tau$, followed by the decay of $N$ into $(Z+\nu_\tau) \rightarrow (e^-e^+) + \nu_\tau$. This last signal may conceivably materialize even at LEP 200 if $N$ is lighter than about 190 GeV.

Affiliated with

Also associated with

No associations

Rating

"A Hint From the Inter-Family Mass Hierarchy: Two Vector-Like Families in the TeV range" does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with "A Hint From the Inter-Family Mass Hierarchy: Two Vector-Like Families in the TeV range", we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and "A Hint From the Inter-Family Mass Hierarchy: Two Vector-Like Families in the TeV range" will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-674533