Measurement of top quark polarization in t(t)over-bar lepton+jets final states
File(s)PhysRevD.95.011101.pdf (451.2 KB)
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Author(s)
Type
Journal Article
Abstract
We present a measurement of top quark polarization in t ¯ t pair production in p ¯ p collisions at √ s = 1.96 TeV using data corresponding to 9.7 fb − 1 of integrated luminosity recorded with the D0 detector at the Fermilab Tevatron Collider. We consider final states containing a lepton and at least three jets. The polarization is measured through the distribution of lepton angles along three axes: the beam axis, the helicity axis, and the transverse axis normal to the t ¯ t production plane. This is the first measurement of top quark polarization at the Tevatron using lepton + jet final states and the first measurement of the transverse polarization in t ¯ t production. The observed distributions are consistent with standard model predictions of nearly no polarization.
Date Issued
2017-01-01
Online Publication Date
2019-11-15T11:14:54Z
Date Acceptance
2017-01-01
ISSN
1550-2368
Publisher
American Physical Society
Journal / Book Title
Physical Review D: Particles, Fields, Gravitation and Cosmology
Volume
95
Issue
1
Copyright Statement
© 2017 American Physical Society
Sponsor
Science and Technology Facilities Council (STFC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000391860700001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
PP/D004284/1
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Particles & Fields
Physics
RUN-II
IDENTIFICATION
TEVATRON
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Particles & Fields
Physics
RUN-II
IDENTIFICATION
JET
TEVATRON
DETECTOR
EVENTS
hep-ex
hep-ex
Publication Status
Published
Article Number
ARTN 011101
Date Publish Online
2017-01-09