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Measurement of the Michel parameter $\rho$ using the $\tau \to e\nu\nu$ channel at $\sqrt{s} \approx$ 91.2 GeV with DELPHI data / Barbi, M S ; Marroquin, F ; Maréchal, B
The Michel parameter rho is measured using the tau to e nu nu decay selected from the DELPHI data in the LEP 1994 run, with the nominal energy set at 91.2 GeV. (2 refs)..
1999
In : 6th Workshop on Hadron Physics, Florianopolis, Brazil, 16 - 21 Mar 1998, pp.411-13

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Neutral current four-fermion production in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 130-183 GeV / DELPHI Collaboration
CERN-OPEN-2000-008 ; CERN-DELPHI-98-104-CONF-172. - 1998. - 21 p.
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Measurement of the $Z^{0}Z^{0}$ cross-section in $e^{+}e^{-}$ interactions at 189 GeV / DELPHI Collaboration
CERN-OPEN-99-421 ; DELPHI-99-69. - 1999. - 21 p.
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$m_b$ at $M_Z$ / DELPHI Collaboration
The value of the $b$ quark mass at the $M_Z$ scale defined in the $\overline{MS}$ renormalization scheme, $m_b(M_Z)$, is determined using 2.8 million hadronic Z decays collected during 1992-1994 by the DELPHI detector to be, \[ m_b(M_Z)=2.67 \pm 0.25\ ({\rm stat.}) \pm 0.34\ ({\rm frag.}) \pm 0.27\ ({\rm theo.}) \ {\rm GeV/c^2}. \] This analysis considers NLO corrections to the three-jet production rate including mass effects, and the result obtained agrees with the QCD prediction of having a running $b$-quark mass at an energy scale equal to $M_Z$ [...]
CERN-PPE-97-141.- Geneva : CERN, 1998 - 16 p. - Published in : Phys. Lett. B 418 (1998) 430-442 Fulltext: ppe-97-141_version1 - PDF; ppe-97-141 - PDF; - CERN library copies

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Charged-particle multiplicity in $e^+ e^- \rightarrow q \overline{q}$ events at 161 and 172 GeV and from the decay of the W boson / DELPHI Collaboration
The data collected by DELPHI in 1996 have been used to measure the average charged particle multiplicities and dispersions in $q\bar{q}$ events at centre-of-mass energies of $\sqrt{s}=161$~GeV and $\sqrt{s}=172$~GeV, and the average charge multiplicity in WW events at $\sqrt{s}=172$~GeV. The multiplicities in $q\bar{q}$ events are consistent with the evolution predicted by QCD. [...]
CERN-PPE-97-113.- Geneva : CERN, 1998 - 17 p. - Published in : Phys. Lett. B 416 (1998) 233-246 Fulltext: PDF; - CERN library copies

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Search for $B^{0}_s -\overline{B^{0}_s}$ oscillations / DELPHI Collaboration
was obtained by combining the results obtained in three channels..
CERN-PPE-97-114.- Geneva : CERN, 1997 - 23 p. - Published in : Phys. Lett. B 414 (1997) 382-400 Fulltext: PDF; - CERN library copies

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Measurement of the triple gluon vertex from double quark tagged 4-jet events / DELPHI Collaboration
The 4-jet events collected by the DELPHI experiment at LEP1 in 1992, 1993 and 1994 are analysed to determine the contribution of the triple-gluon vertex. Two of the four jets are tagged as jets from $b$- or $c$-quarks using lifetime and lepton transverse momentum information [...]
CERN-PPE-97-112.- Geneva : CERN, 1997 - 22 p. - Published in : Phys. Lett. B 414 (1997) 401-418 Fulltext: PDF; - CERN library copies

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Measurement of the Quark and Gluon Fragmentation Functions in $Z^0$ Hadronic Decays / DELPHI Collaboration
The fragmentation functions and multiplicities in $b\overline{b}$ and light quark events are compared. The measured transverse and longitudinal components of the fragmentation function allow the gluon fragmentation function to be evaluated..
CERN-PPE-97-108.- Geneva : CERN, 1999 - 23 p. - Published in : Eur. Phys. J. C 6 (1999) 19-33 Fulltext: PDF; - CERN library copies

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Search for charginos, neutralinos and gravitinos at LEP / DELPHI Collaboration
An update of the searches for charginos and neutralinos in DELPHI is presented, based mainly on recent data collected at centre-of-mass energies of 161~GeV and 172~GeV. No signal is found. [...]
CERN-PPE-97-107.- Geneva : CERN, 1998 - 37 p. - Published in : Eur. Phys. J. C 1 (1998) 1-20 Fulltext: PDF; - CERN library copies

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10.

Search for neutral and charged Higgs bosons in $e^+ e^-$ collisions at $\sqrt{s}= 161 GeV$ and $172 GeV$ / DELPHI Collaboration
A search for neutral and charged Higgs bosons has been performed in the data collected by the {\sc DELPHI} detector at centre-of-mass energies of 161~GeV and 172~GeV. The analysis assumes either the pair-production of charged Higgs bosons, ${\mathrm H}^{\pm}$, or the production of the lightest neutral Higgs boson, h, with either a Z or a neutral pseudoscalar Higgs boson, A [...]
CERN-PPE-97-085.- Geneva : CERN, 1998 - 68 p. - Published in : Eur. Phys. J. C 2 (1998) 1-37 Fulltext: PDF; - CERN library copies

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See also: similar author names
88	Barbi, M
23	Barbi, M.
6	Barbi, Maria
5	Barbi, Mauricio

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