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CERN Document Server 2,045 records found  1 - 10próximoend  jump to record: Search took 0.22 seconds. 
1.
(100)
Dipole moments of the tau lepton / Lohmann, W (DESY)
The electromagnetic and weak dipole moments of the tau lepton have been measured by experiments at LEP. Data samples of e/sup +/e/sup -/ to tau /sup +/ tau /sup -/( gamma ) events collected at center of mass energies around the mass of the Z boson corresponding to an integrated luminosity of about 100 pb/sup -1/ per experiment are used. [...]
2000
In : 2nd International Conference on Physics beyond the Standard Model, Ringberg, Germany, 6 - 12 Jun 1999, pp.729-37
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2.
(91)
Any sign of new physics in the 1999 OPAL data? / Gruwé, M (DESY-Hamburg Univ)
This paper describes preliminary results of searches for new physics performed by OPAL with the data collected at square root s~192-196 Ge V. Data used in the analyses correspond to integrated luminosities of about 26 pb/sup -1/ and up to 23 pb/sup -1/ at 192 and 196 GeV respectively. [...]
2000 - 3 p.
In : International Europhysics Conference on High-Energy Physics, Tampere, Finland, 15 - 21 Jul 1999, pp.776-778
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3.
(89)
Anomalous electromagnetic moments of the tau lepton / Gau, S S ; Paul, T ; Swain, J D ; Taylor, L
We discuss the recent determination of the first limits on the anomalous electromagnetic couplings of the tau lepton by the L3 collaboration using the process e/sup +/e/sup -/ to tau tau gamma near the Z/sup 0/ pole. Subtleties of the theory as well as the recent L3 results are presented, together with a summary of related results. [...]
Geneva : CERN, 1999
In : 6th International Symposium on Particles, Strings and Cosmology, Boston, MA, USA, 22 - 27 Mar 1998, pp.442-9
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4.
(70)
Searches for the Higgs bosons predicted by the extensions of the standard model with two Higgs-field doublets using LEP data / Locci, E (DAPNIA)
Results from 630 pb/sup -1/ collected by each of the four LEP experiments have been derived for the Higgs bosons predicted by the extensions of the standard model with two Higgs-field doublets. Limits on the masses of the neutral Higgs bosons h/sup 0/, A/sup 0/, H/sup 0/, the charged Higgs bosons H/sup +or-/, and tan beta , have been obtained by the LEP Higgs working group. [...]
2002
In : 9th International Conference on Supersymmetry and Unification of Fundamental Interactions, Dubna, Russian Federation, 11 - 17 Jun 2001, pp.69-78
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5.
(53)
LEP : W mass and cross section results / Gurtu, A (Tata Inst of Fundamental Res)
Before 1996 the study of W production and decay was an exclusive domain of the pp colliders. In summer 1996 LEP ran at square root s =161.3 GeV, just above the W-pair production threshold, providing 10 pb/sup -1/ luminosity per LEP experiment. [...]
1999
In : 13th Topical Conference on Hadron Collider Physics, Mumbai, India, 14 - 20 Jan 1999, pp.27-34
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6.
(52)
Cross section measurement of $\tau$ pairs in two photon collisions with the L3 detector at LEP 2 / Haas, D (Basel U.)
The production of tau pairs in gamma gamma collisions is studied with the L3 detector at LEP. Data were collected at square root =189-202 GeV for a total integrated luminosity of 393.0 pb/sup -1/. [...]
2001 - 6 p. ; 21 transparencies. - Published in : AIP Conf. Proc. 571 (2001) 339-344
In : Conference on the Structure and Interactions of the Photon, Ascona, Switzerland, 2 - 7 Sep 2001
Conference on Photon, Ambleside, UK, 26 - 31 Aug 2000, pp.339-344
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7.
(50)
W properties and decays at LEP2 / Bella, G (Sch of Phys & Astron)
Preliminary results from W-pair events measured by the four LEP experiments are presented. These results are based on data taken during years 1996-2000 at e/sup +/e/sup -/ centre-of-mass energies between 161-208 GeV and corresponding to a total integrated luminosity of 560 pb/sup -1/. [...]
2001 - Published in : Nucl. Phys. B, Proc. Suppl. 98 (2001) 227-34
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8.
(47)
Search for the Higgs Boson in Events with Isolated Photons at LEP2 / DELPHI Collaboration
A search for the Higgs boson in final states with one, two or three isolated photons has been performed based on data taken at LEP 2 by the DELPHI detector. The data analysed correspond to a total integrated luminosity of 67.5 pb/sup -1/ at centre-of-mass energies of 161 GeV (9.7 pb/sup -1/), 172 GeV (10.1 pb/sup -1/) and 183 GeV (47.7 pb/sup -1/) [...]
1999 - Published in : Phys. Lett. B 458 (1999) 431-46
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9.
(45)
Enhancement of the loop-induced $H^{\pm} W^{\mp} Z^{0}$ vertex in the two-Higgs-doublet model / Kanemura, S
The nondecoupling effects of heavy Higgs bosons as well as fermions on the loop-induced H/sup +or-/W/sup -or+/Z/sup 0/ vertex are discussed in the general two-Higgs-doublet model. The decay width of the process H/sup +/ to W/sup +/Z/sup 0/ is calculated at the one- loop level and the possibility of its enhancement is explored. [...]
2000 - Published in : Phys. Rev. D 61 (2000) 095001/1-14
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10.
(43)
Determining tan beta with neutral and charged Higgs bosons at a future $e^{+} e^{-}$ linear collider / Gunion, J F ; Han, T ; Jiang, J ; Sopczak, A
The ratio of neutral Higgs field vacuum expectation values, tan beta , is one of the most important parameters to determine in either the minimal supersymmetric standard model (MSSM) or a general type-II two-Higgs doublet model (2HDM). Assuming an energy and integrated luminosity of square root s=500 GeV and L=2000 fb/sup -1/ at a future linear collider (LC), we show that a very accurate determination of tan beta will be possible for low and high tan beta values by measuring the production rates of Higgs bosons and reconstructing Higgs boson decays. [...]
2003 - Published in : Phys. Lett. B 565 (2003) 42-60
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