Measurements of the tt-bar Cross Section at D0 and Interpretations

Journal Article · Wed Feb 10 04:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3327693· OSTI ID:21371574

Lacroix, F ^[1]

---

1. University of Illinois at Chicago, Chicago, Illinois 60607 (United States)

We present measurements of the tt-bar production cross in pp-bar collisions at a center of mass energy of sq root(s) = 1.96 TeV using dilepton, hadronic tau, lepton+jets and all hadronic events depending on the decay products of the W bosons from the top decays with data collected by the D0 detector We use the ratios of tt-bar cross sections in different final states to set upper limits on the branching fractions B(t->H{sup +}b->taunu b))<15% and B(t->H{sup +}b->cs-bar b))<57% for low charged-Higgs masses. Finally, based on predictions from higher order quantum chromodynamics, we extract a mass for the top quark from the combined tt-bar cross section.

• OSTI ID: 21371574
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1200; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CROSS SECTIONS
CYCLIC ACCELERATORS
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMILAB TEVATRON
FERMIONS
FIELD THEORIES
HADRON-HADRON INTERACTIONS
HADRONS
HEAVY LEPTONS
HIGGS BOSONS
HIGGS MODEL
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEPTONS
MASS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESONS
MULTIPARTICLE SPECTROMETERS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
PROTON-ANTIPROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKONIUM
QUARKS
REST MASS
SPECTROMETERS
SYNCHROTRONS
T QUARKS
TAU PARTICLES
TEV RANGE
TOP PARTICLES
TOPONIUM
W MINUS BOSONS
W PLUS BOSONS
WEAK INTERACTIONS