I am posting my thesis on the second generation leptoquark search,
submitted in February 1998 to the University of Geneve, Swizerland.


Thesis submitted by Hisanori KAMBARA


Home institution : UNIVERSITE DE GENEVE, Geneva, Swizerland
Department       : FACULTE DES SCIENCES
		   Departement de physique nucleaire et corpusculaire
Thesis adviser	 : Professeur Allan G. Clark
Thesis Number    : 2997
Publisher        : Atelier d'impression de la Section de Physique, Geneve
Published at	 : February, 1998



	THESIS TITLE
	------------

Search for Second Generation Leptoquarks in sqrt{s} = 1.8 TeV ppbar at
CDF and Silicon Detector Readout Electronics Development with ATLAS

	ABSTRUCT
	--------

In this thesis, a search for second generation leptoquark is
presented.  It is based on the data collected at the Collider Detector
at Fermilab with the Tevatron proton-antiproton collisions of
sqrt{s}=1.8 TeV.  A total integrated luminosity of 110 pb^{-1}
collected during runs in 1992-1995 is used.  The search was performed
on the charged dimuon plus dijet channel.  No evidence for existence
of leptoquark was found, and a new production cross section limit is
set as a result of this analysis.  Using the most recent theoretical
calculation of pair leptoquark production, a new lower mass limit for
second generation scalar leptoquark is extracted.  The new limit
excludes M(LQ2)< 202 GeV/c^2.

The Large Hadron Collider (LHC), a proton-proton collider with a
center of mass energy (sqrt{s}) of 14 TeV, is currently under the
construction at CERN.  It will be utilised to extend the searches for
the leptoquarks to higher mass regions.  As in CDF, tracking detectors
are essential to identify charged leptons decaying from leptoquarks.
A silicon strip tracking detector is being developed for the ATLAS
experiment.  A dense and fast readout system with a good signal to
noise ratio and low power consumption are required with high
luminosity and short event collision interval (25 ns) expected at the
LHC.  A description of a prototype front-end micro-electronic chip,
the ADAM<, for silicon strip detector readout application is presented.
Results from a complete laboratory test as well as its performance on
a test beam at CERN are reported.


Posted to /cdf/pub/thesis/cdf4649_lq2_thesis.ps
    http://www-cdf.fnal.gov/thesis/cdf4649_lq2_thesis.ps

Posted by hkambara@cdfsga.fnal.gov