E. Kangas

Publications (4)0.35 Total impact

• Source

  Available from: Matthew Knepley

  Article: A Search for Disoriented Chiral Condensate at the Fermilab Tevatron

  MiniMax Collaboration: T. C. Brooks, M. E. Convery, W. L. Davis, K. W. Del Signore, T. L. Jenkins, E. Kangas, M. G. Knepley, K. L. Kowalski, C. C. Taylor, S H Oh, [......], M. Martens, J. Streets, R C Ball, H R Gustafson, L W Jones, M. J. Longo, J. D. Bjorken, A. Abashian, N. Morgan, C. A. Pruneau
  [show abstract] [hide abstract]
  ABSTRACT: We present results from MiniMax (Fermilab T-864), a small test/experiment at the Tevatron designed to search for the production of disoriented chiral condensate (DCC) in $p - \bar p$ collisions at $\sqrt{s} = 1.8$ TeV in the forward direction, $\sim 3.4 < \eta < \sim 4.2$. Data, consisting of $1.3 \times 10^6$ events, are analyzed using the robust observables developed in an earlier paper. The results are consistent with generic, binomial-distribution partition of pions into charged and neutral species. Limits on DCC production in various models are presented.
  07/1999;
• Article: Analysis of charged-particle–photon correlations in hadronic multiparticle production

  T. C. Brooks, M. E. Convery, W. L. Davis, K. W. Del Signore, T. L. Jenkins, E. Kangas, M. G. Knepley, K. L. Kowalski, C. C. Taylor, S. H. Oh, [......], M. Martens, J. Streets, R. Ball, H. R. Gustafson, L. W. Jones, M. J. Longo, J. D. Bjorken, A. Abashian, N. Morgan, C. A. Pruneau
  [show abstract] [hide abstract]
  ABSTRACT: In order to analyze data on joint charged-particle–photon distributions from an experimental search (T-864, MiniMax) for disoriented chiral condensate (DCC) at the Fermilab Tevatron collider, we have identified robust observables, ratios of normalized bivariate factorial moments, with many desirable properties. These include insensitivity to many efficiency corrections and the details of the modeling of the primary pion production, and sensitivity to the production of DCC, as opposed to the generic, binomial-distribution partition of pions into charged and neutral species. The relevant formalism is developed and tested in Monte Carlo simulations of the MiniMax experimental conditions.
  Phys. Rev. D. 04/1997; 55(9).
• Article: MiniMax: What has been learned thus far

  M. Convery, W. L. Davis, K. DelSignore, T. L. Jenkins, E. Kangas, M. Knepley, K. L. Kowalski, C. C. Taylor, C. H. Wang, S. H. Oh, [......], B. Hanna, M. A. Martens, J. M. Streets, R. C. Ball, H. R. Gustafson, L. W. Jones, M. J. Longo, J. D. Bjorken, N. Morgan, C. Pruneau
  [show abstract] [hide abstract]
  ABSTRACT: A small experiment, «MiniMax», has been set up in the C0 intersection region of the Fermilab Tevatron to seek evidence for disoriented chiral condensates and to study other forward physics phenomena. The experiment consists of a proportional wire chamber telescope accompanied by scintillation (trigger) counters, a lead converter, and followed by an electromagnetic calorimeter. The solid angle accepted is a cone centered at pseudorapidity (η) of 4.1 and of radius (in η-ϕ space) of about 0.6. Over 2.5 million events thus far have demonstrated the successful operation of the apparatus, however to date the analysis has not progressed sufficiently to permit any conclusions concerning disoriented chiral condensates.
  Nuovo Cimento- Societa Italiana di Fisica Sezione C 10/1996; 19(6):1045-1049. · 0.35 Impact Factor
• Source

  Available from: Matthew Knepley

  Article: Preliminary Results from a Search for Disoriented Chiral Condensates at MiniMax

  T. C. Brooks, M. E. Convery, W. L. Davis, K. W. Delsignore, T. L. Jenkins, E. Kangas, M. G. Knepley, K. L. Kowalski, C. C. Taylor, S H Oh, [......], M. Martens, J. Streets, R. Ball, H R Gustafson, L W Jones, M. J. Longo, J. D. Bjorken, A. Abashian, N. Morgan, C. A. Pruneau
  [show abstract] [hide abstract]
  ABSTRACT: We report on the progress of a search for disoriented chiral condensates (DCCs) in the far forward region at sqrt(s)=1.8 TeV. MiniMax is a small collider experiment situated at the C0 interaction region of the Tevatron and has been designed to measure the ratio of charged to neutral pions produced at eta near 4.1. The distribution of this ratio is expected to be very different for the generic binomial and DCC particle production models. We present a method used for the search using the factorial moments of particle generating functions, which can be extracted directly from the data. A preliminary comparison of robust ratios of measured values and those expected from the different models is also presented.
  09/1996;