Solutions to the Rb, Rc, and αs puzzles by vector fermions

Chia Hung V. Chang; Darwin Chang; Wai Yee Keung

doi:10.1103/PhysRevD.54.7051

Solutions to the R_b, R_c, and α_s puzzles by vector fermions

Chia Hung V. Chang, Darwin Chang, Wai Yee Keung

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

We propose two minimal extensions of the standard model, both of which can accommodate the recent puzzling observations about the excess in R_b and the deficit in R_c. The discrepancy in the low energy and high energy determinations of α_s can be resolved in the second model. Each model requires three additional heavy vectorial fermions. The current phenomenological constraints and the new potential phenomena are also discussed.

Original language	English
Pages (from-to)	7051-7056
Number of pages	6
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	54
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.54.7051
Publication status	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.54.7051

Cite this

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abstract = "We propose two minimal extensions of the standard model, both of which can accommodate the recent puzzling observations about the excess in Rb and the deficit in Rc. The discrepancy in the low energy and high energy determinations of αs can be resolved in the second model. Each model requires three additional heavy vectorial fermions. The current phenomenological constraints and the new potential phenomena are also discussed.",

author = "Chang, {Chia Hung V.} and Darwin Chang and Keung, {Wai Yee}",

year = "1996",

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AB - We propose two minimal extensions of the standard model, both of which can accommodate the recent puzzling observations about the excess in Rb and the deficit in Rc. The discrepancy in the low energy and high energy determinations of αs can be resolved in the second model. Each model requires three additional heavy vectorial fermions. The current phenomenological constraints and the new potential phenomena are also discussed.

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Solutions to the R_b, R_c, and α_s puzzles by vector fermions

Abstract

ASJC Scopus subject areas

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