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CERN Document Server Намерени са 2,050 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 1.54 секунди. 
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Measurement of the Mass and Width of the W Boson in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 161 - 209 GeV / DELPHI Collaboration
A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the data collected during the full LEP2 programme (1996-2000). The data sample has an integrated luminosity of 660 pb^-1 and was collected over a range of centre-of-mass energies from 161 to 209 GeV. [...]
arXiv:0803.2534; CERN-PH-EP-2007-026; CERN-PH-EP-2007-026.- 2008 - 61 p. - Published in : Eur. Phys. J. C 55 (2008) 1-38 Fulltext: PDF; External link: Fulltext
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Measurement of the Tau Lepton Polarisation at LEP2 / DELPHI Collaboration
A first measurement of the average polarisation P_tau of tau leptons produced in e+e- annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. [...]
arXiv:0710.1368; CERN-PH-EP-2007-010; CERN-PH-EP-2007-010.- 2008 - 17 p. - Published in : Phys. Lett. B 659 (2008) 65-73 Fulltext: PDF; External link: Preprint
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A Study of $b\overline{b}$ Production in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 130-207 GeV / DELPHI Collaboration
Measurements are presented of R_b, the ratio of the b bbar cross-section to the q qbar cross-section in e+e- collisions, and the forward-backward asymmetry A^b_FB at twelve energy points in the range sqrt(s) = 130-207 GeV. These results are found to be consistent with the Standard Model expectations. [...]
arXiv:0901.4461; CERN-PH-EP-2008-018; CERN-PH-EP-2008-018.- 2009 - 21 p. - Published in : Eur. Phys. J. C 60 (2009) 1-15 Fulltext: arXiv:0901.4461 - PDF; 10052_2009_917_OnlinePDF - PDF; External link: Fulltext
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Study of W boson polarisations and Triple Gauge boson Couplings in the reaction $e^{+}e^{-} \to W^{+}W^{-}$ at LEP 2 / DELPHI Collaboration
A determination of the single W Spin Density Matrix (SDM) elements in the reaction e+e- -> W+W- -> l nu q qbar (l=e/mu) is reported at centre-of-mass energies between 189 and 209 GeV. The data sample used corresponds to an integrated luminosity of 520 pb^{-1} taken by DELPHI between 1998 and 2000. [...]
arXiv:0801.1235; CERN-PH-EP-2007-036; CERN-PH-EP-2007-036.- 2008 - 31 p. - Published in : Eur. Phys. J. C 54 (2008) 345-364 Fulltext: PDF; Springer Open Access article: PDF; External link: Fulltext
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Study of b-quark mass effects in multijet topologies with the DELPHI detector at LEP / DELPHI Collaboration
The effect of the heavy b-quark mass on the two, three and four-jet rates is studied using LEP data collected by the DELPHI experiment at the Z peak in 1994 and 1995. The rates of b-quark jets and light quark jets (l = uds) in events with n = 2, 3, and 4 jets, together with the ratio of two and four-jet rates of b-quarks with respect to light-quarks, R_n^bl, have been measured with a double-tag technique using the CAMBRIDGE jet-clustering algorithm. [...]
arXiv:0804.3883; CERN-PH-EP-2007-011; CERN-PH-EP-2007-011.- 2008 - 24 p. - Published in : Eur. Phys. J. C 55 (2008) 525-538 Fulltext: PDF; External link: Fulltext
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Observation of the Muon Inner Bremsstrahlung at LEP1 / DELPHI Collaboration
Muon bremsstrahlung photons converted in front of the DELPHI main tracker (TPC) in dimuon events at LEP1 were studied in two photon kinematic ranges: 0.2 < E_gamma <= 1 GeV and transverse momentum with respect to the parent muon p_T < 40 MeV/c, and 1 < E_gamma <= 10 GeV and p_T < 80 MeV/c . A good agreement of the observed photon rate with predictions from QED for the muon inner bremsstrahlung was found, contrary to the anomalous soft photon excess that has been observed recently in hadronic Z^0 decays. [...]
arXiv:0901.4488; CERN-PH-EP-2007-012; CERN-PH-EP-2007-012.- 2008 - 24 p. - Published in : Eur. Phys. J. C 57 (2008) 499-514 Fulltext: arXiv:0901.4488 - PDF; 10052_2008_779_OnlinePDF - PDF; External link: Fulltext
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A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole / DELPHI Collaboration
The nature of b-quark jet hadronisation has been investigated using data taken at the Z peak by the DELPHI detector at LEP. Two complementary methods are used to reconstruct the energy of weakly decaying b-hadrons, E^weak_B. [...]
arXiv:1102.4748; CERN-PH-EP-2010-057; CERN-PH-EP-2010-057.- Geneva : CERN, 2011 - 50 p. - Published in : Eur. Phys. J. C 71 (2011) 1557 Fulltext: CERN-PH-EP-2010-057 - PDF; arXiv:1102.4748 - PDF; Preprint: PDF; External link: Rivet analyses reference
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Correlations between Polarisation States of W Particles in the Reaction $e^- e^+\to W^- W^+$ at LEP2 Energies 189-209 GeV / DELPHI Collaboration
In a study of the reaction e-e+ -> W-W+ with the DELPHI detector, the probabilities of the two W particles occurring in the joint polarisation states transverse-transverse (TT), longitudinal-transverse plus transverse-longitudinal (LT) and longitudinal-longitudinal (LL) have been determined using the final states WW -> l nu q qbar (l = e, mu). The two-particle joint polarisation probabilities, i.e. [...]
arXiv:0908.1023; CERN-PH-EP-2009-003; CERN-PH-EP-2009-003.- Geneva : CERN, 2009 - 20 p. - Published in : Eur. Phys. J. C 63 (2009) 611-623 Fulltext: PDF; External link: Preprint
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Search for neutral MSSM Higgs bosons at LEP / ALEPH Collaboration
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four collaborations are statistically combined and examined for their consistency with the background hypothesis and with a possible Higgs boson signal. [...]
hep-ex/0602042; CERN-PH-EP-2006-001; CERN-L3-307; CERN-PH-EP-2006-001.- Geneva : CERN, 2006 - 82 p. ALEPH Papers - Published in : Eur. Phys. J. C 47 (2006) 547 Fulltext: arXiv:hep-ex_0602042 - PDF; phep-2006-001 - PDF; 0602042 - PDF; External link: Preprint
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Higgs boson searches in CP-conserving and CP-violating MSSM scenarios with the DELPHI detector / DELPHI Collaboration
This paper presents the final interpretation of the results from DELPHI on the searches for Higgs bosons in the Minimal Supersymmetric extension of the Standard Model (MSSM). A few representative scenarios are considered, that include CP conservation and explicit CP violation in the Higgs sector. [...]
arXiv:0801.3586; CERN-PH-EP-2007-029; DAPNIA-07-150; CERN-PH-EP-2007-029; DAPNIA-07-150.- Geneva : CERN, 2008 - 52 p. - Published in : Eur. Phys. J. C
- Published in : Eur. Phys. J. C Fulltext: phep-2007-029 - PDF; arXiv:0801.3586 - PDF; Springer Open Access article: PDF; External link: Fulltext
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