174 research outputs found
The probability of making a correct decision in hypotheses testing as estimator of quality of planned experiments
In the report the approach to estimation of quality of planned experiments is
considered. This approach is based on the analysis of uncertainty, which will
take place under the future hypotheses testing about the existence of a new
phenomenon in Nature. The probability of making a correct decision in
hypotheses testing is proposed as estimator of quality of planned experiments.
This estimator allows to take into account systematics and statistical
uncertainties in determination of signal and background rates.Comment: 6 pages (1 LaTeX file), 4 eps files (figures), improved the proof of
good properties of the estimato
Gaugino pair production at LHC for the case of nonuniversal gaugino masses
We investigate \chi^{+/-}_1 \chi^0_2 pair production at LHC (CMS) with
subsequent decays into leptons for the case of nonuniversal gaugino masses.
Visibility of signal by an excess over SM background in 3 leptons + no jet +
E^{miss}_T events depends rather strongly on the relation between LSP mass
\chi^0_1 and \chi^{+/-}_1 mass. We also give some preliminary results on the
investigation of squark and gluino production at LHC for the case of
nonuniversal gaugino masses.Comment: 1 latex files (10 pages
LHC(CMS) SUSY discovery potential for the case of nonuniversal gaugino masses
We investigate squark and gluino pair production at LHC(CMS) for the case of
nonuniversal gaugino masses. Visibility of signal by an excess over SM
background in events depends
rather strongly on the relation between LSP, gluino and squark masses and it
decreases with the increase of LSP mass. For relatively heavy LSP mass close to
squark or gluino masses it is possible to detect SUSY for TeV.}Comment: 1 latex (3 pages), 2 eps (figures) files. Presented by N.V.Krasnikov
at the 9th International Conference on Supersymmetries in Physics (SUSY 01),
11-17 Jun 2001, Dubna, Russi
The Reach of LHC (CMS) for Models with Effective Supersymmetry and Nonuniversal Gaugino Masses
We investigate squark and gluino pair production at LHC (CMS) with subsequent
decays into quarks, leptons and LSP in models with effective supersymmetry
where third generation of squarks is relatively light while the first two
generations of squarks are heavy. We consider the general case of nonuniversal
gaugino masses. Visibility of signal by an excess over SM background in events depends rather strongly on
the relation between LSP, second neutralino, gluino and squark masses and it
decreases with the increase of LSP mass.Comment: 1 latex file (21 pages) Presented by N.V.Krasnikov at the
International Seminar "Quarks-2000", Pushkin, Russia, 14 - 21 may 200
New Physics Discovery Potential in Future Experiments
We propose a method to estimate the probability of new physics discovery in
future high energy physics experiments. Physics simulation gives both the
average numbers of background and of signal events. We find that the
proper definition of the significance for , >> 1 is S_{12} =
sqrt(+) - sqrt() in comparison with often used significances S_1 =
/sqrt() and S_2 = /sqrt( + ). We propose a method for
taking into account the systematical errors related to nonexact knowledge of
background and signal cross sections. An account of such systematics is very
essential in the search for supersymmetry at LHC. We also propose a method for
estimation of exclusion limits on new physics in future experiments.Comment: 1 latex files (22 pages), 3 eps files (figures), introduced
normalized kappa, added comments to ref.[9
LHC(CMS) SUSY discovery potential for nonuniversal gaugino and squark masses and the determination of the effective SUSY scale
We review the results on the investigation of the LHC(CMS) SUSY discovery
potential for the case of nonuniversal gaugino and squark masses.Comment: 12 pages (1 LaTeX file), 8 eps files (figures
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