A new set of measurements of the top quark mass are presented, based on the proton-proton data recorded by the CMS experiment at the LHC at ffiffi s p 1⁄4 8 TeV corresponding to a luminosity of 19.7 fb−1. The top quark mass is measured using the leptonþ jets, all-jets and dilepton decay channels, giving values of 172.35 0.16ðstatÞ 0.48ðsystÞ GeV, 172.32 0.25ðstatÞ 0.59ðsystÞ GeV, and 172.82 0.1...

A new set of measurements of the top quark mass are presented, based on the proton-proton data recorded by the CMS experiment at the LHC at ffiffi s p 1⁄4 8 TeV corresponding to a luminosity of 19.7 fb−1. The top quark mass is measured using the leptonþ jets, all-jets and dilepton decay channels, giving values of 172.35 0.16ðstatÞ 0.48ðsystÞ GeV, 172.32 0.25ðstatÞ 0.59ðsystÞ GeV, and 172.82 0.1...

We discuss recent improvement in the treatment of gluon radiation in top production and decay in e + e − processes according to the HERWIG event generator and show studies on the top mass reconstruction at the future Linear Collider. For the sake of performing precision measurements of top quark properties at the future Linear Collider, trustworthy Monte Carlo simulations of multiparton radiati...

Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV using soft electron b-tagging Measurement of the top quark mass and p p ! t t cross section in the all-hadronic mode with the CDF II detector We present a measurement of the top quark mass and of the top-antitop (t " t) pair production cross section using p " p data collected with the CDF II d...

Measurement of the top pair production cross section in the dilepton decay channel in p(p)over-bar collisions at root s = 1.96 TeV Measurement of the top quark mass and p p ! t t cross section in the all-hadronic mode with the CDF II detector We present a measurement of the top quark mass and of the top-antitop (t " t) pair production cross section using p " p data collected with the CDF II det...

The production of strange hadrons is investigated using deep-inelastic scattering events measured with the H1 detector at HERA. The K0 s and Λ production cross sections and their ratios are determined and presented differentially as functions of several kinematical variables. The K0 s production rate is compared to the production of charged particles in the same region of phase space. In additi...

The study of the π−p → ρn and π−p → ωn amplitudes close and below the vector meson production threshold (1.2 < √ s < 1.8 GeV) reveals a rich dynamics arising from the presence of specific baryon resonances in this energy range. The interference pattern of the ee decays of the ρand ω-mesons produced in π−p reactions reflects directly this dynamics. We discuss this interference pattern in the π−p...

We present a calculation of the total cross section for top quark production based on a new perturbative resummation of gluon radiative corrections to the basic QCD subprocesses. We use Principal Value Resummation to calculate all relevant large threshold corrections. Advantages of this method include its independence from arbitrary infrared cutoos and speciication of the perturbative regime of...

We show that a single I=1 spin-parity J^{PC}=1^{++} a_{1} resonance can manifest itself as two separated mass peaks, one decaying into an S-wave ρπ system and the second decaying into a P-wave f_{0}(980)π system, with a rapid increase of the phase difference between their amplitudes arising mainly from the structure of the diffractive production process. This study clarifies questions related t...