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

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

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

Lacroix, F ^[1]

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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, Vol. 1200, Issue 1; Conference: SUSY09: 17. international conference on supersymmetry and the unification of fundamental interactions, Boston, MA (United States), 5-10 Jun 2009; Other Information: DOI: 10.1063/1.3327693; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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