CERN Accelerating science

CERN Document Server Sök i 12 journaler efter:  1 - 10nästa  gå till journal: Sökningen tog 0.79 sekunder. 
1.
Approximation methods in potential scattering / Martin, A (CERN) ; Krueger, David A (CERN) ; Michael Dante, Wm (CERN)
CERN-PRE-3765.
- 1964. - 53 p.
2.
A small scale remote cooling system for a superconducting cyclotron magnet / Haug, F (CERN) ; Berkowitz Zamorra, D (CERN ; KIT, Karlsruhe) ; Michels, M (CERN ; KIT, Karlsruhe) ; Gomez Bosch, R (CERN) ; Schmid, J (CERN) ; Striebel, A (CERN) ; Krueger, A (CERN) ; Diez, M (CERN) ; Jakob, M (CERN) ; Keh, M (CERN) et al.
Through a technology transfer program CERN is involved in the R&D; of a compact superconducting cyclotron for future clinical radioisotope production, a project led by the Spanish research institute CIEMAT. For the remote cooling of the LTc superconducting magnet operating at 4.5 K, CERN has designed a small scale refrigeration system, the Cryogenic Supply System (CSS). [...]
2017 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 171 (2017) 012038 Fulltext: PDF;
In : 26th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2016, New Delhi, India, 7 - 11 Mar 2016, pp.012038
3.
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;
4.
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
5.
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
6.
Search for neutral MSSM Higgs bosons at LEP / ALEPH Collaboration
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four collaborations are statistically combined and examined for their consistency with the background hypothesis and with a possible Higgs boson signal. [...]
hep-ex/0602042; CERN-PH-EP-2006-001; CERN-L3-307; CERN-PH-EP-2006-001.- Geneva : CERN, 2006 - 82 p. ALEPH Papers - Published in : Eur. Phys. J. C 47 (2006) 547 Fulltext: arXiv:hep-ex_0602042 - PDF; phep-2006-001 - PDF; 0602042 - PDF; External link: Preprint
7.
Determination of $\alpha_s$ from Hadronic Event Shapes in $e^+ e^-$ Annihilation at $192 \le \sqrt{s} \le 208$ GeV / L3 Collaboration
Results are presented from a study of the structure of high energy hadronic events recorded by the L3 detector at sqrt(s)>192 GeV. The distributions of several event shape variables are compared to resummed O(alphaS^2) QCD calculations. [...]
hep-ex/0206052; CERN-EP-2002-015; CERN-EP-2002-015; CERN-L3-254.- Geneva : CERN, 2002 - 18 p. - Published in : Phys. Lett. B 536 (2002) 217-228 Fulltext: ep-2002-015_bw_evol_bw - EPS; ep-2002-015_bw_gn_194_bw - EPS; ep-2002-015_figure_20txt1 - PDF; ep-2002-015 - PDF; ep-2002-015_alsfit - EPS; ep-2002-015_1thrust_evol_bw - EPS; ep-2002-015_als_l3_oct01_1_bw - EPS; ep-2002-015_bw_gn_206_bw - EPS; ep-2002-015_bw_gn_201_bw - EPS; ep-2002-015_als_l3_oct01_3_bw - EPS; arXiv:hep-ex_0206052 - PDF; External link: Preprint - Please contact the library if you need to access this document.
8.
Measurement of charged-particle multiplicity distributions and their $H_q$ moments in hadronic Z decays at LEP / L3 Collaboration
The charged-particle multiplicity distribution and the inclusive momentum distribution, in terms of the variable $\xi$, are measured for all hadronic events as well as for light-quark and b-quark events in $\mathrm{e}^{+}\mathrm{e}^{-}$ collisions at the Z pole. Moments of the charged-particle multiplicity distributions are calculated, and the peak positions of the $\xi$ distributions determined. [...]
hep-ex/0110072; CERN-EP-2001-072; CERN-EP-2001-072; CERN-L3-244.- Geneva : CERN, 2003 - 11 p. - Published in : Phys. Lett. B 577 (2003) 109-119 Fulltext: ep-2001-072 - PDF; arXiv:hep-ex_0110072 - PDF; S0370269303015764 - XML; External link: Preprint - Please contact the library if you need to access this document.
9.
Search for R-parity Violating Decays of Supersymmetric Particles in $e^{+}e^{-}$ Collisions at $\sqrt{s}$= 189 GeV / L3 Collaboration
A search for chargino, neutralino and scalar lepton pair-production in $\mathrm{e^+e^-}$ collisions at the centre-of-mass energy of 189 GeV is performed under the assumptions that R-parity is not conserved in decays and only one of the coupling constants $\lambda_{ijk}$, $\lambda'_{ijk}$ or $\lambda''_{ijk}$ is non-negligible. No signal is found in a data sample corresponding to an integrated luminosity of 176.4 pb$^{-1}$. [...]
hep-ex/0011087; CERN-EP-2000-130; CERN-EP-2000-130; CERN-L3-224.- Geneva : CERN, 2001 - 41 p. - Published in : Eur. Phys. J. C 19 (2001) 397-414 Fulltext: ep-2000-130 - PDF; arXiv:hep-ex_0011087 - PDF; External link: Preprint - Please contact the library if you need to access this document.
10.
Search for a Higgs Boson Decaying into Two Photons in $e{^+} e^{-}$ Interactions at $\sqrt{s}$= 189 GeV / L3 Collaboration
A search is performed for a Higgs boson produced in association with a Z boson and decaying into two photons, using the L3 data collected at LEP at a centre-of-mass energy of 189 GeV. All decay modes of the Z are considered. [...]
hep-ex/0008025; CERN-EP-2000-103; CERN-EP-2000-103; CERN-L3-217.- Geneva : CERN, 2000 - 15 p. - Published in : Phys. Lett. B 489 (2000) 115-24 Fulltext: arXiv:hep-ex_0008025 - PDF; ep-2000-103 - PDF; External link: Preprint - Please contact the library if you need to access this document.

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