Top quark production asymmetries AFBt and AFB

Edmond L. Berger, Qing Hong Cao, Chuan Ren Chen, Jiang Hao Yu, Hao Zhang

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

A large forward-backward asymmetry is seen in both the top quark rapidity distribution AFBt and in the rapidity distribution of charged leptons AFB 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.

Original languageEnglish
Article number072002
JournalPhysical Review Letters
Volume108
Issue number7
DOIs
Publication statusPublished - 2012 Feb 14

Fingerprint

Physics
Biomechanical Phenomena
asymmetry
quarks
leptons
kinematics
physics
polarization

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Top quark production asymmetries AFBt and AFB. / Berger, Edmond L.; Cao, Qing Hong; Chen, Chuan Ren; Yu, Jiang Hao; Zhang, Hao.

In: Physical Review Letters, Vol. 108, No. 7, 072002, 14.02.2012.

Research output: Contribution to journalArticle

Berger, Edmond L. ; Cao, Qing Hong ; Chen, Chuan Ren ; Yu, Jiang Hao ; Zhang, Hao. / Top quark production asymmetries AFBt and AFB. In: Physical Review Letters. 2012 ; Vol. 108, No. 7.
@article{fed25fbbd4c640c4a27165e6febe68fd,
title = "Top quark production asymmetries AFBt and AFB",
abstract = "A large forward-backward asymmetry is seen in both the top quark rapidity distribution AFBt and in the rapidity distribution of charged leptons AFB 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.",
author = "Berger, {Edmond L.} and Cao, {Qing Hong} and Chen, {Chuan Ren} and Yu, {Jiang Hao} and Hao Zhang",
year = "2012",
month = "2",
day = "14",
doi = "10.1103/PhysRevLett.108.072002",
language = "English",
volume = "108",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "7",

}

TY - JOUR

T1 - Top quark production asymmetries AFBt and AFB

AU - Berger, Edmond L.

AU - Cao, Qing Hong

AU - Chen, Chuan Ren

AU - Yu, Jiang Hao

AU - Zhang, Hao

PY - 2012/2/14

Y1 - 2012/2/14

N2 - A large forward-backward asymmetry is seen in both the top quark rapidity distribution AFBt and in the rapidity distribution of charged leptons AFB 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.

AB - A large forward-backward asymmetry is seen in both the top quark rapidity distribution AFBt and in the rapidity distribution of charged leptons AFB 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.

UR - http://www.scopus.com/inward/record.url?scp=84863116175&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863116175&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.108.072002

DO - 10.1103/PhysRevLett.108.072002

M3 - Article

AN - SCOPUS:84863116175

VL - 108

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 7

M1 - 072002

ER -