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Title: Unified, flavor symmetric explanation for the tt asymmetry and Wjj excess at CDF

Abstract

We present a simple, perturbative, and renormalizable model with a flavor symmetry which can explain both the tt forward-backward asymmetry and the bump feature present in the dijet mass distribution of the W+jj sample in the range 120-160 GeV that was recently reported by the CDF collaboration. The flavor symmetry not only ensures the flavor/CP safety of the model, but also relates the two anomalies unambiguously. It predicts a comparable forward-backward asymmetry in cc. The forward-backward asymmetry in bb is, however, small. A bump in the dijet mass distribution in Z+jj sample is also predicted but with a suppressed cross section.

Authors:
;  [1];  [2]
  1. Department of Physics, University of Washington, Seattle, Washington 98195 (United States)
  2. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)
Publication Date:
OSTI Identifier:
21608013
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 84; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.84.094007; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; CROSS SECTIONS; FERMILAB COLLIDER DETECTOR; FLAVOR MODEL; GEV RANGE 100-1000; MASS DISTRIBUTION; PERTURBATION THEORY; RENORMALIZATION; SIMULATION; SYMMETRY; COMPOSITE MODELS; DISTRIBUTION; ENERGY RANGE; GEV RANGE; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; PARTICLE MODELS; QUARK MODEL; RADIATION DETECTORS; SPATIAL DISTRIBUTION

Citation Formats

Nelson, Ann E., Roy, Tuhin S., and Okui, Takemichi. Unified, flavor symmetric explanation for the tt asymmetry and Wjj excess at CDF. United States: N. p., 2011. Web. doi:10.1103/PHYSREVD.84.094007.
Nelson, Ann E., Roy, Tuhin S., & Okui, Takemichi. Unified, flavor symmetric explanation for the tt asymmetry and Wjj excess at CDF. United States. doi:10.1103/PHYSREVD.84.094007.
Nelson, Ann E., Roy, Tuhin S., and Okui, Takemichi. Tue . "Unified, flavor symmetric explanation for the tt asymmetry and Wjj excess at CDF". United States. doi:10.1103/PHYSREVD.84.094007.
@article{osti_21608013,
title = {Unified, flavor symmetric explanation for the tt asymmetry and Wjj excess at CDF},
author = {Nelson, Ann E. and Roy, Tuhin S. and Okui, Takemichi},
abstractNote = {We present a simple, perturbative, and renormalizable model with a flavor symmetry which can explain both the tt forward-backward asymmetry and the bump feature present in the dijet mass distribution of the W+jj sample in the range 120-160 GeV that was recently reported by the CDF collaboration. The flavor symmetry not only ensures the flavor/CP safety of the model, but also relates the two anomalies unambiguously. It predicts a comparable forward-backward asymmetry in cc. The forward-backward asymmetry in bb is, however, small. A bump in the dijet mass distribution in Z+jj sample is also predicted but with a suppressed cross section.},
doi = {10.1103/PHYSREVD.84.094007},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 9,
volume = 84,
place = {United States},
year = {2011},
month = {11}
}