Data quality monitoring for the D0 calorimeter

The precision physics that is being carried out by D0 at Fermilab in the Run II of the Tevatron, requires optimal calorimeter response and resolution. To achieve a high level of calorimeter data quality a complete on-line and off-line strategy has been developed and implemented. It includes : online data monitoring and quality checking; offline data monitoring and data quality verification with physical objects; offline calorimeter failure correction; identification and removal of noisy events; special algorithms to remove sporadic and isolated "hot" cells or "hot" regions in the calorimeter; rejection of " bad" runs or portions of them based on strict requirements on unbiased physics quantities

Correspondence between John H. Shary, W. S. Dougherty, and E. V. Sprowl

Correspondence between John H. Shary, W. S. Dougherty, and E. V. Sprowl regarding net sales of fruits.https://scholarworks.utrgv.edu/johnshary/1048/thumbnail.jp

Top quark pair production cross section at Tevatron

An overview of the recent measurements of the top antitop quark pair production cross section in proton antiproton collisions at {radical}s = 1.96 TeV in lepton + jets and dilepton final states is presented. These measurements are based on 1-2.8 fb{sup -1} of data collected with the D0 and CDF experiments at the Fermilab Tevatron collider. The cross section is measured with a precision close to 8 % and found to be compatible with the standard model prediction. Interpretations of the cross-section measurements for charge higgs search and for top quark mass measurement are also discussed

Evidence of phi --> pi0 pi0 gamma and phi --> pi0 eta gamma decays in SND experiment at VEPP-2M

Preliminary results on the study of e+e- --> phi(1020) --> pi0 pi0 gamma, eta pi0 gamma processes from SND experiment at VEPP-2M collider in Novosibirsk are presented. Branching ratios of rare radiative phi --> pi0 pi0 gamma and phi --> pi0 eta gamma decays are measured: B(phi --> pi0 pi0 gamma ) = (1.1 +- 0.2) * 10^-4 (invariant mass (pi0 pi0) < 800 MeV), B(phi --> eta pi0 gamma ) = (1.3 +- 0.5) * 10^-4.Comment: Talk at the HADRON97 conference, BNL, Aug 24-30 1997; LaTeX, 4 pages, 4 eps figure