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CERN Document Server 418 records found  1 - 10próximoend  jump to record: Search took 0.56 seconds. 
1.
Measurement of the electron structure function F$\frac{e}{2}$ at LEP energies / Abdallah, J (Paris U., VI-VII) ; Abreu, P (LIP, Lisbon) ; Adam, W (Vienna, OAW) ; Adzic, P (Democritos Nucl. Res. Ctr.) ; Albrecht, T (Karlsruhe U., EKP) ; Alemany-Fernandez, R (CERN) ; Allmendinger, T (Karlsruhe U., EKP) ; Allport, P P (Liverpool U.) ; Amaldi, U (INFN, Milan Bicocca ; Milan Bicocca U.) ; Amapane, N (INFN, Turin ; Turin U.) et al. /DELPHI
The hadronic part of the electron structure function F2e has been measured for the first time, using e+e− data collected by the DELPHI experiment at LEP, at centre-of-mass energies of s=91.2–209.5 GeV . The data analysis is simpler than that of the measurement of the photon structure function. [...]
2014 - 9 p. - Published in : Phys. Lett. B 737 (2014) 39-47 Elsevier Open Access article: PDF;
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2.
Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP / ALEPH Collaboration
Electroweak measurements performed with data taken at the electron-positron collider LEP at CERN from 1995 to 2000 are reported. The combined data set considered in this report corresponds to a total luminosity of about 3~fb$^{-1}$ collected by the four LEP experiments ALEPH, DELPHI, L3 and OPAL, at centre-of-mass energies ranging from $130~GeV$ to $209~GeV$ [...]
arXiv:1302.3415; CERN-PH-EP-2013-022; CERN-PH-EP-2013-022.- Geneva : CERN, 2013 - 126 p. - Published in : Phys. Rep. 532 (2013) 119-244 Draft (restricted): PDF; Fulltext: CERN-PH-EP-2013-022 - PDF; arXiv:1302.3415 - PDF; External link: Preprint
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3.
Search for Charged Higgs bosons: Combined Results Using LEP data / ALEPH, DELPHI, L3 and OPAL Collaborations
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for pair-produced charged Higgs bosons in the framework of Two Higgs Doublet Models (2HDMs). The data of the four experiments are statistically combined. [...]
arXiv:1301.6065; CERN-PH-EP-2012-369; CERN-PH-EP-2012-369; LHWG-Note-2012-01; ALEPH-2012-001-PHYSICS-2012-001; DELPHI-2012-001-PHYS-953; L3-Note-2835; OPAL-PR433.- Geneva : CERN, 2013 - 18 p. - Published in : Eur. Phys. J. C 73 (2013) 2463 Draft (restricted): PDF; Fulltext: CERN-PH-EP-2012-369 - PDF; arXiv:1301.6065 - PDF; External link: Preprint
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4.
Measurement of the Electron Structure Function at LEP energies / DELPHI Collaboration
The hadronic part of the Electron Structure Function (ESF) has been measured for the first time, using e+e- data collected by the DELPHI experiment at LEP, at centre-of-mass energies sqrt(s) = 91.2-209.5 GeV. [...]
CERN-PH-EP-2010-058. - 2010. - 17 p.
Full text
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5.
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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6.
Search for single top quark production via contact interactions at LEP2 / DELPHI Collaboration
Single top quark production via four-fermion contact interactions associated to flavour-changing neutral currents was searched for in data taken by the DELPHI detector at LEP2. The data were accumulated at centre-of-mass energies ranging from 189 to 209 GeV, with an integrated luminosity of 598.1 pb^-1. [...]
arXiv:1102.4455; CERN-PH-EP-2010-056; CERN-PH-EP-2010-056.- Geneva : CERN, 2011 - 22 p. - Published in : Eur. Phys. J. C 71 (2011) 1555 Fulltext: CERN-PH-EP-2010-056 - PDF; arXiv:1102.4455 - PDF; Preprint: PDF;
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7.
Study of the Dependence of Direct Soft Photon Production on the Jet Characteristics in Hadronic $Z^0$ Decays / DELPHI Collaboration
An analysis of the direct soft photon production rate as a function of the parent jet characteristics is presented, based on hadronic events collected by the DELPHI experiment at LEP1. The dependences of the photon rates on the jet kinematic characteristics (momentum, mass, etc.) and on the jet charged, neutral and total hadron multiplicities are reported. [...]
arXiv:1004.1587; CERN-PH-EP-2009-014; CERN-PH-EP-2009-014.- 2010 - 40 p. - Published in : Eur. Phys. J. C 67 (2010) 343-366 Fulltext: arXiv:1004.1587 - PDF; 10052_2010_1315_OnlinePDF - PDF; External link: Preprint
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8.
Measurements of CP-conserving Trilinear Gauge Boson Couplings WWV (V = $\gamma$,Z) in $e^+e^-$ Collisions at LEP2 / DELPHI Collaboration
The data taken by DELPHI at centre-of-mass energies between 189 and 209 GeV are used to place limits on the CP-conserving trilinear gauge boson couplings Delta_g1z, lambda_gamma and Delta_kappag associated to W+W- and single W production at LEP2. Using data from the jjlv, jjjj, jjX and lX final states, where j, l and X represent a jet, a lepton and missing four-momentum, respectively, the following limits are set on the couplings when one parameter is allowed to vary and the others are set to their Standard Model values of zero: Delta_g1z = -0.025^{+0.033}_{-0.030}, lambda_gamma = 0.002^{+0.035}_{-0.035} and Delta_kappag = 0.024^{+0.077}_{-0.081} . [...]
arXiv:1002.0752; CERN-PH-EP-2009-020; CERN-PH-EP-2009-020.- Geneva : CERN, 2010 - 38 p. - Published in : Eur. Phys. J. C 66 (2010) 35-36 Fulltext: arXiv:1002.0752 - PDF; 10052_2010_1254_OnlinePDF - PDF; External link: Preprint
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9.
Observation of a spin 4 neutral meson with 2 GeV mass decaying in $\pi^{0} \pi^{0}$ / Apel, W D (Karlsruhe U., EKP) ; Augenstein, K. (Karlsruhe U., EKP) ; Bertolucci, E. (INFN, Pisa) ; Donskov, S.V. (Serpukhov, IHEP) ; Inyakin, A.V. (Serpukhov, IHEP) ; Kachanov, V.A. (Serpukhov, IHEP) ; Kittenberger, W. (Vienna, OAW) ; Krasnokutsky, R.N. (Serpukhov, IHEP) ; Kruger, M. (Karlsruhe U., EKP) ; Leder, G. (Serpukhov, IHEP) et al.
The invariant mass spectrum of neutral meson states from π−p interactions at 40 GeV/c incident momentum has been investigated in a high statistics experiment performed at the 70 GeV IHEP accelerator. To detect the high energy photons coming from the produced neutral states, a hodoscope spectrometer with a computer on-line was used. [...]
Geneva : CERN, 1975 - Published in : Phys. Lett. B 57 (1975) 398-402
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10.
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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Veja também: nomes de autores similares
2 Apel, W
389 Apel, W D
19 Apel, W-D.
20 Apel, W.-D.
90 Apel, W.D.
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