منابع مشابه
Mssm Susy Searches at Lep2
In the final run in the year 2000 the four experiments at the electron positron collider LEP have accumulated data corresponding to an integrated luminosity of more than 210 pb −1 per experiment at centre-of-mass energies up to 208 GeV. These data have been used to extend the search for supersymmetric particles in the new energy domain. In the present paper the results of searches for sfermions...
متن کاملMssm Higgs Searches at Lep2
Since it explains how the weak gauge bosons acquire their mass, the Higgs mechanism is a key point of the electroweak theory. In the Standard Model (SM), the Higgs mechanism predicts the existence of a scalar massive particle, the Higgs boson, which has never been observed yet. Because the SM is hardly consistent with the hierarchy between the Planck scale and the electroweak scale, it is certa...
متن کاملAspects of Higgs Boson Searches at LEP2
A preliminary combined mass limit of about 90 GeV has been reported for the Minimal Standard Model Higgs boson from the 183 GeV data taken in 1997, with a total luminosity of about 200 pb. Similar mass limits have been reported from the individual LEP experiments based on the first 1998 data at 189 GeV with up to 40 pb each. For the first time the LEP experiments have made a common effort to de...
متن کاملSearches for Higgs Bosons at LEP2
The latest results of Higgs boson searches from the four LEP experiments, ALEPH, DELPHI, L3 and OPAL, are reviewed using the data taken in 1996 at center-of-mass energies between 161 and 172 GeV. No signal was observed. The 95% CL combined lower mass limit for the Minimal Standard Model (MSM) Higgs boson has increased from 66 GeV at LEP1 to 77.5 GeV with the first LEP2 data. In the framework of...
متن کاملRecent Lep2 Results on Searches for New Phenomena
Recent results of searches for supersymmetric particles, Higgs bosons, and other new phenomena at LEP2 are summarized. These results are based on data and analyses from the four LEP experiments: ALEPH, DELPHI, L3, and OPAL. The data were collected during the summer and fall of 1996 with center-of-mass energies of 161 and 172 GeV. Supported by DOE Contract DE-FG0295-ER40896. c 1997 by Yibin Pan.
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ژورنال
عنوان ژورنال: Brazilian Journal of Physics
سال: 2001
ISSN: 0103-9733
DOI: 10.1590/s0103-97332001000200013