Published October 1, 2011 | Version v1
Report Metadata-only

Measurement of the forward-backward asymmetry in top-antitop quark production in proton-antiproton collisions

Creators

Description

We present a new measurement of the forward-backward asymmetry in t(bar t) production in p(bar p) collisions in the l+jets channel at D0. We measure asymmetries from two different observables and unfold the data to allow the results to be compared to standard model predictions. For the unfolded asymmetry based on the Δy variable, we measure (19.6 ± 6.5)%, compared with an MC(at)NLO-based prediction of (5.0 ± 0.1)%. We also discuss the correlation between the asymmetry and the transverse momentum of the t(bar t) system.

Availability note (English)

Available from Fermi National Accelerator Laboratory, Batavia, IL (United States)

Additional details

Identifiers

arXiv
arXiv:1110.2062;

Publishing Information

Imprint Pagination
8 p.
Report number
FERMILAB-CONF--11-537-PPD

Conference

Title
Meeting of the Division of Particles and Fields of the American Physical Society
Acronym
DPF 2011
Dates
9-13 Aug 2011
Place
Providence, RI (United States)

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
43006475
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
ASYMMETRY; FORECASTING; QUARKS; STANDARD MODEL; TRANSVERSE MOMENTUM
Descriptors DEC
FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; LINEAR MOMENTUM; MATHEMATICAL MODELS; PARTICLE MODELS; QUANTUM FIELD THEORY; UNIFIED GAUGE MODELS

Optional Information

Contract/Grant/Project number
arXiv eprint number arXiv:1110.2062; AC02-07CH11359
Collaborations
D0 collaboration
Funding organization
DOE Office of Science (United States)