9012400
Study of noncollinear two-charged-particle events produced in 29-GeV electron-positron annihilation.
This paper presents a study of events produced in 29-GeV electron-positron annihilation in which there are just two noncollinear charged particles, no detected photons, and two or more undetected particles. These events can be explained by attributing them primarily to the reactions e/sup +/e/sup -/..-->..e/sup +/e/sup -/e/sup +/e/sup -/ and e/sup +/e/sup -/..-->..e/sup +/e/sup -/..mu../sup +/..mu../sup -/ where just two particles appear in the Mark II detector. There is no evidence for unconventional sources for such events.
23375265
Observation of psi production in e+e- annihilation at 29 GeV.
Inclusive 8-production in e+e-annihilation at 29 GeV has been measured-with the Mark II detector. From an integrated luminosity of 207 pb-', we ~ determine a production rate of 0.017 & 0.004 f 0.004 E:-+ 8-per hadronic event.
120042323
Performance of the scintillating fibre detector in the upgraded UA2 detector
A large scintillating fibre detector consisting of ≈ 60 000 scintillating plastic fibres of 1 mm diameter and 2.4 m length has been used successfully as a tracking and preshower detector in the UA2 experiment at CERN. The detector readout, the pattern recognition algorithm and the results from the pp data taking run are described.
209834639
Search for supersymmetry in events with b-quark jets and missing transverse energy in pp collisions at 7 TeV
Results are presented from a search for physics beyond the standard model based on events with large missing transverse energy, at least three jets, and at least one, two, or three b-quark jets. The study is performed using a sample of proton-proton collision data collected at sqrt(s)=7 TeV with the CMS detector at the LHC in 2011, with the missing transverse energy distribution as the principal search variable. The integrated luminosity of the sample is 4.98 inverse femtobarns. The observed number of events is found to be consistent with the standard model expectation, which is evaluated using control samples in the data. The results are used to constrain cross sections for the production of supersymmetric particles decaying to b-quark-enriched final states in the context of simplified model spectra.
208854583
Extraction of the width of the $W$ boson from measurements of $\sigma(p\bar{p} \to W + X) \times B(W \to e \nu)$ and $\sigma(p\bar{p} \to Z + X) \times B(Z \to e e)$ and their ratio
18192511
Measurement of the W boson mass.
We present a measurement of the W boson mass in W-->e(nu) decays using 1 fb-1 of data collected with the D0 detector during Run II of the Fermilab Tevatron collider. With a sample of 499830 W-->e(nu) candidate events, we measure M(W)=80.401+/-0.043 GeV. This is the most precise measurement from a single experiment.
120471875
High precision study of CP-violating charge asymmetry in K+- ---> 3pi+- decays by the NA-48/2 experiment at CERN