4,055 research outputs found
The use of cluster quality for track fitting in the CSC detector
The new particle accelerators and its experiments create a challenging data
processing environment, characterized by large amount of data where only small
portion of it carry the expected new scientific information. Modern detectors,
such as the Cathode Strip Chamber (CSC), achieve high accuracy of coordinate
measurements (between 50 to 70 microns). However, heavy physical backgrounds
can decrease the accuracy significantly. In the presence of such background,
the charge induced over adjacent CSC strips (cluster) is different from the
ideal Matheison distribution. The traditional least squares method which takes
the same ideal position error for all clusters loses its optimal properties on
contaminated data. A new technique that calculates the cluster quality and uses
it to improve the track fitting results is suggested. The algorithm is applied
on test beam data, and its performance is compared to other fitting methods. It
is shown that the suggested algorithm improves the fitting performance
significantly.Comment: Proceedings of 2006 IEEE NSS, San Diego, California, USA, November
200
The fundamental group of a Galois cover of CP^1 X T
Let T be the complex projective torus, and X the surface CP^1 X T. Let X_Gal
be its Galois cover with respect to a generic projection to CP^2. In this paper
we compute the fundamental group of X_Gal, using the degeneration and
regeneration techniques, the Moishezon-Teicher braid monodromy algorithm and
group calculations. We show that pi_1(X_Gal) = Z^10.Comment: Published by Algebraic and Geometric Topology at
http://www.maths.warwick.ac.uk/agt/AGTVol2/agt-2-20.abs.htm
Volatility Spillovers from the Chinese Stock Market to Economic Neighbours
This paper examines whether there is evidence of spillovers of volatility from the Chinese stock
market to its neighbours and trading partners, including Australia, Hong Kong, Singapore, Japan
and USA. China’s increasing integration into the global market may have important consequences
for investors in related markets. In order to capture these potential effects, we explore these issues
using an Autoregressive Moving Average (ARMA) return equation. A univariate GARCH model
is then adopted to test for the persistence of volatility in stock market returns, as represented by
stock market indices. Finally, univariate GARCH, multivariate VARMA-GARCH, and multivariate
VARMA-AGARCH models are used to test for constant conditional correlations and volatility
spillover effects across these markets. Each model is used to calculate the conditional volatility
between both the Shenzhen and Shanghai Chinese markets and several other markets around the
Pacific Basin Area, including Australia, Hong Kong, Japan, Taiwan and Singapore, during four
distinct periods, beginning 27 August 1991 and ending 17 November 2010. The empirical results
show some evidence of volatility spillovers across these markets in the pre-GFC periods, but there is
little evidence of spillover effects from China to relat
Henri Temianka Correspondence; (amram)
This collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/3319/thumbnail.jp
Henri Temianka Correspondence; (amram)
This collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/1049/thumbnail.jp
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