52 research outputs found
Composition, distribution and biomass of meiobenthos in the Oosterschelde estuary (SW Netherlands)
Search for New Color-Octet Vector Particle Decaying to ttbar in ppbar Collisions at TeV
Submitted to Phys. Lett. BWe present the result of a search for a massive color-octet vector particle, (e.g. a massive gluon) decaying to a pair of top quarks in proton-antiproton collisions with a center-of-mass energy of 1.96 TeV. This search is based on 1.9 fb of data collected using the CDF detector during Run II of the Tevatron at Fermilab. We study events in the lepton+jets channel with at least one -tagged jet. A massive gluon is characterized by its mass, decay width, and the strength of its coupling to quarks. These parameters are determined according to the observed invariant mass distribution of top quark pairs. We set limits on the massive gluon coupling strength for masses between 400 and 800 GeV and width-to-mass ratios between 0.05 and 0.50. The coupling strength of the hypothetical massive gluon to quarks is consistent with zero within the explored parameter space.We present the result of a search for a massive color-octet vector particle, (e.g. a massive gluon) decaying to a pair of top quarks in proton–antiproton collisions with a center-of-mass energy of 1.96 TeV. This search is based on 1.9 fb−1 of data collected using the CDF detector during Run II of the Tevatron at Fermilab. We study View the MathML source events in the lepton + jets channel with at least one b-tagged jet. A massive gluon is characterized by its mass, decay width, and the strength of its coupling to quarks. These parameters are determined according to the observed invariant mass distribution of top quark pairs. We set limits on the massive gluon coupling strength for masses between 400 and 800 GeV/c2 and width-to-mass ratios between 0.05 and 0.50. The coupling strength of the hypothetical massive gluon to quarks is consistent with zero within the explored parameter space.Peer reviewe
Detection of experimental pulmonary emboli in dogs by sequential positron imaging after inhalation of 15O-carbon dioxide.
Long‐term compositional responses of a South African mesic grassland to burning and mowing
Percutaneous transtracheal high frequency jet ventilation as an aid to difficult intubation
Effects of Different Light Intensities during the Daytime on Circadian Rhythm of Core Temperature in Humans.
Isoflavones Improve Plasma Homocysteine Status and Antioxidant Defense System in Healthy Young Men at Rest but Do Not Ameliorate Oxidative Stress Induced by 80% VO<sub>2</sub>pk Exercise
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