The Top Quark Production Asymmetries $A_{FB}^t$ and $A_{FB}^{\ell }$

Abstract

A large forward-backward asymmetry is seen in both the top quark rapidity distribution $A_{FB}^t$ and in the rapidity distribution of charged leptons $A_{FB}^{\ell }$ from top quarks produced at the Tevatron. We study the kinematic and dynamic aspects of the relationship of the two observables arising from the spin correlation between the charged lepton and the top quark with different polarization states. We emphasize the value of both measurements, and we conclude that a new physics model which produces more right-handed than left-handed top quarks is favored by the present data.

accepted for publication in Physical Review Letters

References in corpus (3)

• Constraining heavy colored resonances from top-antitop quark events
• Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs
• Top Quark Polarization As A Probe of Models with Extra Gauge Bosons

Cited by in corpus (23)

• Zero and one jet combined NLO analysis of the top quark forward-backward asymmetry
• Discerning New Physics in Top-Antitop Production using Top Spin Observables at Hadron Colliders
• Measurement of Leptonic Asymmetries and Top Quark Polarization in ttbar Production
• A precise determination of top quark electro-weak couplings at the ILC operating at $\roots=500\,\GeV$
• Data driving the top quark forward--backward asymmetry with a lepton-based handle
• Up Asymmetries From Exhilarated Composite Flavor Structures
• Massive Spin-2 States as the Origin of the Top Quark Forward-Backward Asymmetry
• Top quark forward-backward asymmetry and W^prime bosons
• Same-sign Tops: A Powerful Diagnostic Test for Models of New Physics
• Renormalization group-induced phenomena of top pairs from four-quark effective operators
• Interpretations and Implications of the Top Quark Rapidity Asymmetries $A_{FB}^t$ and $A_{FB}^{\ell }$
• Ultraviolet Completions of Axigluon Models and Their Phenomenological Consequences
• From Tevatron's top and lepton-based asymmetries to the LHC
• Top quark precision physics at the International Linear Collider
• Quantum coherence, top transverse polarisation and the Tevatron asymmetry $A_{FB}^{\ell }$
• Improving top quark induced charge asymmetries at the LHC using ttbar transverse momentum
• Multiple Z' -> t-tbar signals in a 4D Composite Higgs Model
• R-Parity Violating Supersymmetry Explanation for Large t tbar Forward-Backward Asymmetry
• Constraining Unparticles from Top Physics at TeVatron
• Asymmetry Observables for Measuring Spin Correlations in Top-Quark Pair Production
• Colored bosons on top FBA and angular cross section for $t\bar{t}$ production
• LHC and Tevatron constraints on a W' model interpretation of the top quark forward-backward asymmetry
• Top Quark Polarization and the Search for New Physics