An Effective Z'

Details An Effective Z' An Effective Z'

2011-04-20

arxiv.org/abs/1104.4127v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

44 pages; 5 figures. References added, discussion of gamma+jj constraints updated

Scientific paper

We describe a method to couple Z' gauge bosons to the standard model (SM), without charging the SM fields under the U(1)', but instead through effective higher dimension operators. This method allows complete control over the tree-level couplings of the Z' and does not require altering the structure of any of the SM couplings, nor does it contain anomalies or require introduction of fields in non-standard SM representations. Moreover, such interactions arise from simple renormalizable extensions of the SM - the addition of vector-like matter that mixes with SM fermions when the U(1)' is broken. We apply effective Z' models as explanations of various recent anomalies: the D0 same-sign dimuon asymmetry, the CDF W+di-jet excess and the CDF top forward-backward asymmetry. In the case of the W+di-jet excess we also discuss several complementary analyses that may shed light on the nature of the discrepancy. We consider the possibility of non-Abelian groups, and discuss implications for the phenomenology of dark matter as well.

Affiliated with

Also associated with

No associations

Rating

An Effective Z' 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 An Effective Z', we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An Effective Z' will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-177574