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CERN Document Server 2,051 ჩანაწერია ნაპოვნი  1 - 10შემდეგიდასასრული  ჩანაწერთან გადასვლა: ძიებას დასჭირდა 1.73 წამი. 
1.
(100)
Colour reconnection studies in $e^{+}e^{-} \to W^{+}W^{-}$ at $\sqrt{s}$=183 GeV / OPAL Collaboration
The predicted effects of final state interactions such as colour reconnection are investigated by measuring properties of hadronic decays of W bosons, recorded at a centre-of-mass energy of sqrt(s)=182.7 GeV in the OPAL detector at LEP. Dependence on the modelling of hadronic W decays is avoided by comparing W+W- -> qqqq events with the non-leptonic component of W+W- -> qqlnu events. [...]
hep-ex/9901019; CERN-PPE-98-196; CERN-PPE-98-0196; CERN-EP-98-196; CERN-EP-98-196.- Geneva : CERN, 1999 - 21 p. - Published in : Phys. Lett. B 453 (1999) 153-8 Fulltext: 9901019 - PDF; arXiv:hep-ex_9901019 - PDF; External link: Preprint - Please contact the library if you need to access this document.
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2.
(91)
Measurement of the mass and width of the W boson / OPAL Collaboration
The mass and width of the W boson are measured using e+e- -> W+W- events from the data sample collected by the OPAL experiment at LEP at centre-of-mass energies between 170 GeV and 209 GeV. The mass (mw) and width (gw) are determined using direct reconstruction of the kinematics of W+W- -> qqbarlv and W+W- -> qqbarqqbar events [...]
hep-ex/0508060; OPAL-PR-410; CERN-PH-EP-2005-038; CERN-PH-EP-2005-038.- Geneva : CERN, 2006 - 49 p. - Published in : Eur. Phys. J. C 45 (2006) 307-335 Fulltext: phep-2005-038 - PDF; 0508060 - PDF; arXiv:hep-ex_0508060 - PDF; External link: Preprint
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
3.
(75)
Measurement of the W Mass and Width in $e^{+}e^{-}$ Collisions at 183 GeV / OPAL Collaboration
Using a data sample of 57 pb-1 recorded at a centre-of-mass energy of 183 GeV with the Opal detector at LEP, 282 W+W- -> qqqq and 300 W+W- -> qqlnu candidate events are used to obtain a measurement of the mass of the W boson, W_W = 80.39 +- 0.13(stat.) +- 0.05(syst.) GeV assuming the Standard Model relation between M_W and Gam_W. A second fit provides a direct measure of the width of the W boson and gives Gam_W = 1.96 +- 0.34(stat.) +- 0.20(syst.) GeV. [...]
hep-ex/9901025; CERN-EP-98-197; CERN-EP-98-197.- Geneva : CERN, 1999 - 22 p. - Published in : Phys. Lett. B 453 (1999) 138-52 Fulltext: 9901025 - PDF; arXiv:hep-ex_9901025 - PDF; External link: hep-ex/9901025 PDF - Please contact the library if you need to access this document.
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
4.
(65)
Study of Spin and Decay-Plane Correlations of W Bosons in the $e^{+} e^{-} \to W^{+} W^{-}$ Process at LEP / L3 Collaboration
Data collected at LEP at centre-of-mass energies \sqrt(s) = 189 - 209 GeV are used to study correlations of the spin of W bosons using e+e- -> W+W- -> lnqq~ events. Spin correlations are favoured by data, and found to agree with the Standard Model predictions. [...]
hep-ex/0501036; CERN-EP-2003-072; CERN-EP-2003-072; CERN-L3-282.- Geneva : CERN, 2005 - 16 p. - Published in : Eur. Phys. J. C 40 (2005) 333-341 Fulltext: arXiv:hep-ex_0501036 - PDF; ep-2003-072 - PDF; External link: Preprint - Please contact the library if you need to access this document.
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
5.
(58)
Bose-Einstein Correlations in $e^{+} e^{-} \to W^{+}W^{-}$ at 172 and 183 GeV / OPAL Collaboration
Bose-Einstein correlations between like-charge pions are studied in hadronic final states produced by e+e- annihilations at center-of-mass energies of 172 and 183 GeV. Three event samples are studied, each dominated by one of the processes W+W- to qqlnu, W+W- to qqqq, or (Z/g)* to qq. [...]
hep-ex/9811030; CERN-EP-98-174; CERN-EP-98-174.- Geneva : CERN, 1999 - 25 p. - Published in : Eur. Phys. J. C 8 (1999) 559-71 Fulltext: 9811030 - PDF; arXiv:hep-ex_9811030 - PDF; External link: hep-ex/9811030 PDF - Please contact the library if you need to access this document.
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
6.
(56)
Study of Bose-Einstein Correlations in $e^{+}e^{-}\to W^{+}W^{-}$ events at LEP / OPAL Collaboration
Bose-Einstein correlation between like-sign charged-particle pairs in e+e- -> W+W- events recorded with the OPAL detector at LEP at centre-of-mass energies between 183 GeV and 209 GeV are studied. Recently proposed methods which allow direct searches for correlations in the data via distributions of test variables are used to investigate the presence of correlations between hadrons originating from different W bosons in W+W- -> qqqq events. [...]
hep-ex/0403055; CERN-PH-EP-2004-008; CERN-PH-EP-2004-008.- Geneva : CERN, 2004 - 29 p. - Published in : Eur. Phys. J. C 36 (2004) 297-308 Fulltext: arXiv:hep-ex_0403055 - PDF; phep-2004-008 - PDF; External link: Preprint - Please contact the library if you need to access this document.
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
7.
(55)
W Boson Polarisation at LEP2 / OPAL Collaboration
Elements of the spin density matrix for W bosons in e+e- -> W+W- -> qqln events are measured from data recorded by the OPAL detector at LEP. This information is used calculate polarised differential cross-sections and to search for CP-violating effects. [...]
hep-ex/0312047; CERN-EP-2003-088; CERN-EP-2003-088.- Geneva : CERN, 2004 - 20 p. - Published in : Phys. Lett. B 585 (2004) 223-36 Fulltext: arXiv:hep-ex_0312047 - PDF; ep-2003-088 - PDF; External link: Preprint - Please contact the library if you need to access this document.
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
8.
(51)
Constraints on Anomalous Quartic Gauge Boson Couplings from $\nu\overline{\nu}\gamma\gamma$ and $q\overline{q}\gamma\gamma$ events at LEP 2 / OPAL Collaboration
Anomalous quartic couplings between the electroweak gauge bosons may contribute to the vv gamma gamma and qq gamma gamma final states produced in e+e- collisions. This analysis uses the LEP2 OPAL data sample at centre-of-mass energies up to 209 GeV. [...]
hep-ex/0402021; CERN-PH-EP-2004-003; CERN-PH-EP-2004-003.- Geneva : CERN, 2004 - 23 p. - Published in : Phys. Rev. D 70 (2004) 032005 APS Published version, local copy: PDF; Fulltext: phep-2004-003 - PDF; arXiv:hep-ex_0402021 - PDF; External link: Preprint - Please contact the library if you need to access this document.
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
9.
(50)
Measurement of the w boson mass and $w^{+} w^{-}$ production and decay properties in $e^{+}e^{-}$ collisions at s**(1/2) = 172-GeV / OPAL Collaboration
This paper describes the measurement of the W boson mass, M_W, and decay width, Gamma_W, from the direct reconstruction of the invariant mass of its decay products in W pair events collected at a mean centre-of-mass energy of sqrt{s} = 172.12 GeV with the OPAL detector at LEP. Measurements of the W pair production cross-section, the W decay branching fractions and properties of the W decay final states are also described. [...]
hep-ex/9709006; CERN-PPE-97-116; CERN-PPE-97-116.- Geneva : CERN, 1998 - 59 p. - Published in : Eur. Phys. J. C 1 (1998) 395-424 Fulltext: arXiv:hep-ex_9709006 - PDF; ppe-97-116 - PS.GZ; External link: DURHAM - Please contact the library if you need to access this document.
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
10.
(49)
Measurement of the Mass and Width of the W Boson in $e^{+}e^{-}$ Collisions at 189 GeV / OPAL Collaboration
The mass and width of the W boson are determined in e+e- collisions at LEP using 183 pb^-1 of data recorded at a centre-of-mass energy roots=189 GeV with the OPAL detector. The invariant mass distributions from 970 WW->qqqq and 1118 WW->qqln candidate events are used to measure the mass of the W boson, Mw = 80.451 +- 0.076(stat.) +- 0.049(syst.) GeV. [...]
hep-ex/0009018; CERN-EP-2000-099; CERN-EP-2000-099.- Geneva : CERN, 2001 - 24 p. - Published in : Phys. Lett. B 507 (2001) 29-46 Fulltext: arXiv:hep-ex_0009018 - PDF; 0009018 - PDF; External link: Preprint - Please contact the library if you need to access this document.
დეტალური ჩანაწერი - მსგავსი ჩანაწერები

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