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CERN Document Server 286 records found  1 - 10próximoend  jump to record: Search took 0.81 seconds. 
1.
Measuring the Proton Radius in High-Energy Muon-Proton Scattering / Friedrich, Jan (Munich, Tech. U.) ; Hoffmann, Martin (Bonn U., HISKP) ; Inglessi, Alexander (St. Petersburg, INP) ; Kabuß, Eva (Mainz U., Inst. Kernphys.) ; Ketzer, Bernhard (Bonn U., HISKP) ; Kiselev, Oleg (Darmstadt, GSI) ; Maev, Evgeny (St. Petersburg, INP) ; Paul, Stephan (Munich, Tech. U.) ; Petrov, Gennady (St. Petersburg, INP) ; Uhl, Sebastian (Munich, Tech. U.) et al. /COMPASS++/AMBER working group
The proton charge radius can be determined by measuring the slope of the electric form-factor $G_E$ at small four-momentum transfer squared $Q^2$. Numerous elastic-scattering and laser-spectroscopy measurements of the proton radius have been performed with contradicting results, often referred to as the proton-radius puzzle. [...]
SISSA, 2019 - 6 p. - Published in : PoS DIS2019 (2019) 222 Fulltext: PDF;
In : The XXVII International Workshop on Deep Inelastic Scattering and Related Subjects, Turin, Italy, 8 - 12 Apr 2019, pp.222
2.
Measurement of $\pi^{-}p$ elastic scattering in the Coulomb interference region at 100 GeV/c and 140 GeVc : preliminary results / Burq, J P ; Chemarin, M ; Chevallier, M ; Denisov, A S ; Ekelöf, T J C ; Grafström, P ; Hagberg, E ; Ille, B ; Kashchuk, A P ; Korolev, G A et al.
1980. - 4 p.
Full text
3.
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
4.
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
5.
Generalized event shape and energy flow studies in $e^+ e^-$ annihilation at $\sqrt{s}$ = 91.2-208.0 GeV / L3 Collaboration
We present results from a study of hadronic event structure in high energy e(+)e(-') interactions using the L3 detector at LEP. A new class of event shape distributions are measured at and above the Z boson pole for light quark (u, d, s, c) flavours. [...]
2011 - 59 p. - Published in : JHEP 10 (2011) 143 Springer Open Access article: PDF;
6.
Test of the $\tau$-Model of Bose-Einstein Correlations and Reconstruction of the Source Function in Hadronic Z-boson Decay at LEP / L3 Collaboration
Bose-Einstein correlations of pairs of identical charged pions produced in ha- dronic Z decays are analyzed in terms of various parametrizations. A good descrip- tion is achieved using a L ́evy stable distribution in conjunction with a model where a particle’s momentum is correlated with its space-time point of production, the tau-model. [...]
arXiv:1105.4788; CERN-PH-EP-2011-080; CERN-PH-EP-2011-080.- Geneva : CERN, 2011 - 40 p. - Published in : Eur. Phys. J. C 71 (2011) 1648 CERN-PH-EP-2011-080 (2011-05-20): PDF; Fulltext: PDF; External link: Preprint
7.
Study of hadronic event shape in flavour tagged events in $e^{+} e^{-}$ annihilation at $<\sqrt{S}>$ = 197 GeV / L3 Collaboration
Results are presented from a study of the structure of hadronic events in highenergy (e^+)(e^-) interactions detected by the L3 detector at LEP. Various event shape distributions and their moments are measured at several energy points at and above the Z-boson mass. [...]
arXiv:0907.2658; CERN-PH-EP-2008-011.- Geneva : CERN, 2008 - 29 p. - Published in : PMC Phys. A 2 (2008) 6 Fulltext: CERN-PH-EP-2008-011 - PDF; arXiv:0907.2658 - PDF; External link: Preprint
8.
Study of the Solar Anisotropy for Cosmic Ray Primaries of about 200 GeV Energy with the L3+C Muon Detector / L3 Collaboration
Primary cosmic rays experience multiple deflections in the nonuniform galactic and heliospheric magnetic fields which may generate anisotropies. A study of anisotropies in the energy range between 100 and 500 GeV is performed. [...]
CERN-PH-EP-2008-009.- Geneva : CERN, 2008 - Published in : Astron. Astrophys. 488 (2008) 1093-1100 Fulltext: PDF;
9.
The Solar Flare of the 14th of July 2000 (L3+C detector results) / L3 Collaboration
Several experiments have reported observations on possible correlations between the flux of high energy muons and intense solar flares. If confirmed, these observations would have significant implications for acceleration processes in the heliosphere able to accelerate protons and other ions to energies of at least tens of GeV. [...]
CERN-PH-EP-2006-043.- Geneva : CERN, 2006 - 15 p. - Published in : Astron. Astrophys. 456 (2006) 351-357 Fulltext: PDF;
10.
Analysis of the $\pi^+ \pi^- \pi^+ \pi-$ and $\pi^+ \pi^{0}\pi^- \pi^{0}$ final states in quasi-real two-photon collisions at LEP / L3 Collaboration
The reactions gamma gamma -> pi^+pi^-pi^+pi^- and gamma gamma -> pi^+pi^0pi^-pi^0 are studied with the L3 detector at LEP in a data sample collected at centre-of-mass energies from 161GeV to 209GeV with a total integrated luminosity of 698/pb. A spin-parity-helicity analysis of the rho^0 rho^0 and rho^+ rho^- systems for two-photon centre-of-mass energies between 1GeV and 3GeV shows the dominance of the spin-parity state 2+ with helicity 2. [...]
hep-ex/0605021; CERN-PH-EP-2005-058; hep-ex/0605021; CERN-L3-306; CERN-PH-EP-2005-058.- 2006 - 19 p. - Published in : Phys. Lett. B 638 (2006) 128-139 Fulltext: cer-002667238 - PDF; arXiv:hep-ex_0605021 - PDF; External link: Preprint

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