author = "Alekseev, G D."

Found 140 documents, displaying page 1 of 14

## Search for pair production of heavy objects in 4 jet events at s**(1/2) = 130-GeV - 136-GeV

Description : Results are presented of a search for pair production of heavy objects decaying into four hadronic jets, as expected for example from associated or pair production of MSSM Higgs bosons, hA ~or HH, using a data sample of 5.9pb−1 of e+e− collisions at s√=130−136GeV collected with the DELPHI detector a...
Repository : DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) : English

## Search for Charged Higgs Bosons in $e^+ e^-$ Collisions at $\sqrt{s}$=189-202 GeV

Description : A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189~GeV to 202~GeV\@. The three different final states, $\tau \nu \tau \nu$, $c \bar s \bar c s$ and $c \bar s \tau \nu$ were considered. N...
Repository : HAL - Hyper Article on Line
Language(s) : Undetermined

## Measurement of Trilinear Gauge Couplings in $e^+ e^-$ Collisions at 161 GeV and 172 GeV

Description : Trilinear gauge boson couplings are measured using data taken by DELPHI at 161~GeV and 172~GeV. Values for $WWV$ couplings ($V=Z, \gamma$) are determined from a study of the reactions \eeWW\ and \eeWev, using differential distributions from the $WW$ final state in which one $W$ decays hadronically a...
Repository : HAL - Hyper Article on Line
Language(s) : Undetermined

## Investigation of the splitting of quark and gluon jets

Description :
Repository : HAL - Hyper Article on Line
Language(s) : Undetermined

## Measurement of the charged particle multiplicity of weakly decaying B hadrons

Description : From the $Z$ decays recorded in 1994 and 1995 by the DELPHI detector at LEP, the charged particle multiplicity of weakly decaying $B$ hadrons was measured to be: \begin{center} $4.97 \pm 0.03 \pm 0.06 \, ,$ \end{center} \noindent excluding the $K^0$ and $\Lambda$ decay products.
Repository : HAL - Hyper Article on Line
Language(s) : Undetermined

Description : From a data sample of $9.98 {\mathrm{~pb^{-1}}}$ integrated luminosity collected by DELPHI at a centre-of-mass energy of 172 GeV, 118 events were selected as W-pair candidates. From these, the branching fraction ${\mathrm Br}({\mathrm W} \rightarrow {\mathrm q}\bar{\mathrm q})$ was measured to be $0... Repository : HAL - Hyper Article on Line Language(s) : Undetermined ## A study of the reaction$e^+ e^- \rightarrow \mu^+\mu^-\gamma_{ISR}$at LEP and search for new physics at annihilation energies near 80 GeV Description : A study of the channel$e^{+}e^{-}~\rightarrow~\mu^{+}\mu^{-}\gamma_{\ sc ISR}$, where$\gamma_{\sc ISR}$is an initial state radiation photon, is presented using data collected by the DELPHI experiment from 1991 to 1994. The total cross-section at effective annihilation energies ($\sqrt{s'}$) below... Repository : HAL - Hyper Article on Line Language(s) : Undetermined ##$\pi^{\pm}, K^{\pm}, p$and$\overline{p}$production in$Z^{0} \rightarrow q\overline{q}, Z^{0} \rightarrow b\overline{b}, Z^{0} \rightarrow u\overline{u}, d\overline{d}, s\overline{s}$Description : The DELPHI experiment at LEP uses Ring Imaging Cherenkov detectors for particle identification. The good understanding of the RICH detectors allows the identification of charged pions, kaons and p rotons, covering the full momentum range from \mbox{$0.7\! \!p\! \! 45.6~\gevc$}. The$\pipm$,~$\kapm$,... Repository : HAL - Hyper Article on Line Language(s) : Undetermined ## Measurement of the$e^+ e^- \to \gamma\gamma (\gamma)$cross section at the LEP energies Description : The total and the differential cross-sections for the reaction$e^+e^-\rightarrow \gamma\gamma(\gamma)$have been measured with the DELPHI detector at LEP % with at centre-of-mass energies from 1 30 %, 136, 161, 172 and to 183 GeV for an integrated luminosity of 78.19.~pb$^{-1}$. %CR An agreement wi... Repository : HAL - Hyper Article on Line Language(s) : Undetermined ## Search for charged Higgs bosons in$e^+ e^-$collisions at$\sqrt{s}$= 172 GeV Description : This paper presents results on charged Higgs boson production, based on LEP data collected at$\sqrt{s} = 172$GeV, that complement the previous DELPHI results obtained at centre of mass energies up to 161 GeV. %The analysis is based on LEP data collected at$\sqrt{s} = 172\$ GeV. The charged Higgs b...
Repository : HAL - Hyper Article on Line
Language(s) : Undetermined

Found 140 documents, displaying page 1 of 14