CERN Accelerating science

CERN Document Server 2,037 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.16 sekúnd. 
1.
Investigation of W' bosons at high energy e+e colliders / Doncheski, M A ; Godfrey, S ; Kalyniak, P A ; Kamal, B ; Leike, A
We investigate two processes, e/sup +/e/sup -/ to nu nu gamma and e gamma to nu q+X, for their sensitivity to the existence of extra gauge bosons. Exclusion limits for the mass of a W' are given for various models. [...]
2001
In : 5th International Linear Collider Workshop, Batavia, IL, USA, 24 - 28 Oct 2000, pp.615-18
2.
Investigation of W[sup [prime]] bosons at high energy e[sup +]e[sup -] colliders / Doncheski, M A (Penn State U., Mont Alto) ; Godfrey, Stephen (Carleton U.) ; Kalyniak, Pat (Carleton U.) ; Kamal, Basim (Carleton U.) ; Leike, Arnd (Munich U.)
2000 - Published in : AIP Conf. Proc.: 578 (2000) , pp. 615-618 External link: Published version from AIP
In : 5th International Linear Collider Workshop, Batavia, IL, USA, 24 - 28 Oct 2000, pp.615-618
3.
Study of the process e+eW+W in a model with four Majorana neutrinos / Teves, W J C ; Zukanovich-Funchal, R
We investigate the process /sup +/e/sup -/ to W/sup +/W/sup -/ currently being studied at LEP, in the context of the simplest extension of the Standard Model of electroweak interactions, where a singlet right-handed neutrino is added to the matter content of the model. (6 refs)..
1999
In : 8th Mexican School on Particles and Fields, Oaxaca de Juarez, Mexico, 20 - 28 Nov 1998, pp.422-6
4.
Measurements of the photon structure function at L3 / Erné, F C (NIKHEF ; CERN)
New measurements of the photon structure function in the Q/sup 2/ ranges between 1 and 9 GeV/sup 2/, 9 and 30 GeV/sup 2/ and between 40 and 500 GeV/sup 2/ are presented. The data have been taken by L3 with the LEP e/sup +/e/sup -/ collider at the center-of-mass energies of 91 and 183 GeV with integrated luminosities of 140 and 52 pb/sup -1/. [...]
Geneva : CERN, 2000 - Published in : Nucl. Phys. B, Proc. Suppl. 82 (2000) 19-24
5.
QED structure function of the photon at LEP / Cecchi, C (Univ de Geneve)
We report about the studies of the processes e/sup +/e/sup -/ to e /sup +/e/sup -/e/sup +/e/sup -/ and e/sup +/e/sup -/ to e/sup +/e/sup -/ mu /sup +/ mu /sup -/ in a single tag configuration, using data collected by the LEP experiments at square root S approximately=91 Ge V. (9 refs)..
2000 Fulltext: PDF;
In : International Europhysics Conference on High-Energy Physics, Tampere, Finland, 15 - 21 Jul 1999, pp.443-444
6.
Bounding the ντ magnetic moment from the process e+eννγ in a left-right symmetric model / Gutiérrez-Rodríguez, A ; Hernández-Ruíz, M A
A bound on the nu /sup tau / magnetic moment is calculated through the reaction e/sup +/e/sup -/ to nu nu gamma at the Z/sub 1/-pole, and in the framework of a left-right symmetric model at LEP energies. We find that the bound is almost independent of the mixing angle phi of the model in the allowed experimental range for this parameter. [...]
2003 - Published in : Acta Phys. Slovaca: 53 (2003) , no. 4, pp. 293-305
7.
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
8.
The 2γ reaction e+e --> e+epi+pi in the resonance region / Krasemann, H (CERN) ; Vermaseren, Jos A M (CERN)
In the framework of the non-relative quark model the authors calculate rates and various distributions for the reactions e/sup +/e/sup -/ to e/sup +/e/sup -/f to e/sup +/e/sup -/ pi /sup +/ pi /sup -/ and e/sup +/e/sup -/ to e/sup +-/ epsilon to e/sup +/e/sup -/ pi /sup +/ pi /sup -/, assuming that an epsilon (1300) meson exists. The effect of the experimental acceptance is also investigated..
CERN-TH-2918.- Geneva : CERN, 1981 - 19 p. - Published in : Nucl. Phys. B 184 (1981) 269-282 Fulltext: PDF; - CERN library copies
9.
Searches for new particles and new physics : results from e/sup +/e/sup -/ colliders / Igo-Kemenes, P (Physikalisches Inst, Univ Heidelberg, Germany)
Most of the recent results on searches for new particles and new phenomena in e/sup +/e/sup -/ collisions are provided by the LEP experiments, indirect searches are attentive to traces of new physics produced by virtual effects in Standard Model processes. Direct searches are driven by extensions of the Standard Model, of which Supersymmetry is the most prominent today, however, other models are also investigated, and model independent results are also presented. [...]
2001
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.133-44 (vol.1)
10.
Tests of quantum electrodynamics at PETRA / Branson, J G (DESY, Hamburg, West Germany)
Results from three PETRA experiments on d/sup +/e/sup -/ to e/sup +/e /sup -/ and e/sup +/e/sup -/ to mu /sup +/ mu /sup -/ are presented. These are used to test for deviations of the photon propagator from 1 /q/sup 2/ or for nonpoint like behavior of one of the particles gamma , e or mu . [...]
1979
In : International Conference on High-energy Physics, Geneva, Switzerland, 27 Jun 1979, pp.320-4

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