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CERN Document Server Sök i 30 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.59 sekunder. 
1.
MASS-SAT: Matter-antimatter space spectrometer on satellite / Basini, G (Frascati) ; Candusso, M (Frascati) ; Massimo Brancaccio, F (Frascati) ; Ricci, M (Frascati) ; Bocciolini, M (Florence U. ; INFN, Florence) ; Spillantini, P (Florence U. ; INFN, Florence) ; Wang, Y F (Florence U. ; INFN, Florence) ; Bongiorno, F (Rome U.) ; de Pascale, M P (Rome U., Tor Vergata ; INFN, Rome2) ; Morselli, A (Rome U., Tor Vergata ; INFN, Rome2) et al.
The MASS-SAT Experiment (Matter-Antimatter Space Spectrometer on SATellite) presented here is conceived to search for an experimental answer to many open problems related to both Astrophysics and Physics, through the detection of positrons, antiprotons, nuclei and, overall, antinuclei if they exist. Among these problems there are the hypothesized presence of antigalaxies in the Universe (the matter-antimatter symmetry problem), the existence of black holes as possible antiproton sources (the Hawking effect), the existence of photinos as antiproton sources (related to the dark-matter problem), the understanding of the mechanism of cosmic-ray acceleration in the interstellar medium, the determination of the relative abundancies of isotopes in cosmic rays and many others. [...]
1990-07 - 17 p. - Published in : Nuovo Cimento B 105 (1990) 779-795
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2.
Book cover Geant4 : toolkit for particle detector simulation . - version 6, release 3 / Amako, Katsuya
GEAN-URD. - Geneva : CERN, Information and Programming Technology Group, 1998. - 36 p.

CERN library copies
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3.
Hadronic electroproduction at LEP / Ballocchi, G ; Dick, Louis ; Dukes, E C ; Dalpiaz, P F (et al.)
CERN-LEPC-89-10 ; LEPC-M-88. - 1989. - 26 p.
Fulltext
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4.
Proposal for the Study of Spin Effects in pp and $\overline{p}p$ Interactions Using a Polirized Atomic Hydrogen Beam Target / Bologna-CERN-Lausanne-Michigan-Milan-Rockefeller-Trieste-Udine Collaboration
CERN-SPSC-90-001 ; SPSC-P-248. - 1989. - 40 p.
Fulltext - Fulltext - CERN library copies
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5.
Neutrino production of opposite sign dimuons in the NOMAD experiment / NOMAD Collaboration
The NOMAD Collaboration presents a study of opposite sign dimuon events in the framework of Leading Order QCD. A total of 2714 neutrino- and 115 antineutrino-induced opposite sign dimuon events with $E_{\mu 1}, E_{\mu 2} > 4.5$ GeV, $15 < E_{\nu} < 300$ GeV and $Q^{2} > 1\;(\mbox{GeV}/\mbox{c})^{2}$ are observed %in the data from the 1995 and 1996 runs. [...]
CERN-EP-2000-072.- Geneva : CERN, 2000 - 13 p. - Published in : Phys. Lett. B 486 (2000) 35-48 Fulltext: PDF; Source files restricted to CERN users: ZIP; - CERN library copies
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6.
Updated Results from the $\nu_{\tau}$ Appearance Search in NOMAD / NOMAD Collaboration
Updated results from the appearance searches for $\numunutau$ and $\nuenutau$ oscillations in the full NOMAD data sample are reported. The increased data and the use of more refined kinematic schemes for the $\nutau$ CC selection allow a significant improvement of the overall sensitivity. [...]
CERN-EP-2000-049.- Geneva : CERN, 2000 - 26 p. - Published in : Phys. Lett. B 483 (2000) 387-404 Fulltext: PDF; - CERN library copies
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7.
Search for eV (pseudo)scalar penetrating particles in the SPS neutrino beam / NOMAD Collaboration
We carried out a model-independent search for light scalar or pseudoscalar particles $a$'s (an example of which is the axion) that couple to two photons by using a photon-regeneration method at high energies allowing a substantial increase in the sensitivity to $eV$ masses.\ The experimental set-up is based on elements of the CERN West Area Neutrino Facility (WANF) beam line and theNOMAD neutrino detector.\ The new particles, if they exist, could be produced through the Primakoff effect in interactions of high energy photons, generated by the 450 $GeV$ protons in the CERN SPS neutrino target, with virtual photons from the WANF horn magnetic field.\ The particles would penetrate the downstream shieldingand would be observed in the NOMAD neutrino detector through their re-conversion into real high energy photons byinteracting with the virtual photons from the magnetic field of the NOMAD dipole magnet.\ From the analysis of the data collected during the 1996 run with $1.08\times10^{19}$ protons on target, 312 candidate events with energy between 5 and 140 $GeV$ were found.\ This number is in general agreement with the expectation of 272$\pm$18 background events from standard neutrino processes.\ A 90 $\% ~CL$ upper limit on the $a\gamma\gamma$-coupling $g_{a\gamma\gamma} <$ 1.5$\times10^{-4}~GeV^{ -1}$ for $a$ masses up to 40 $eV$ is obtained.\
CERN-EP-2000-042.- Geneva : CERN, 2000 - 17 p. - Published in : Nucl. Phys. B, Proc. Suppl. 87 (2000) 105-7
- Published in : Phys. Lett. B 479 (2000) 371-80 Fulltext: PDF; - CERN library copies
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8.
Calibration and performance of the E706 lead and liquid argon electromagnetic calorimeter / E706 Collaboration
FERMILAB-PUB-97-142-E. - 1997.
Full text from Fermilab
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9.
Limit on $\nu_{e} \to \nu_{\tau}$ Oscillations from the NOMAD experiment / Astier, Pierre ; Autiero, D ; Baldisseri, Alberto ; Baldo-Ceolin, Massimilla ; Ballocchi, G ; Banner, M ; Bassompierre, Gabriel ; Benslama, K ; Besson, N ; Bird, I G et al.
CERN-EP-99-151.- Geneva : CERN, 2000 - 9 p. - Published in : Phys. Lett. B 471 (2000) 406-10 Fulltext: PS.GZ; - CERN library copies
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10.
A More Sensitive Search for $\nu_{\mu} \to \nu_{\tau}$ Oscillations in NOMAD / NOMAD Collaboration
With additional data and improved algorithms, we have enhanced the sensitivity of our appearance search for $\numunutau$ oscillations in the NOMAD detector in the CERN-SPS wide-band neutrino beam. The search uses kinematic criteria to identify $\nutau$ charged current interactions followed by decay of the $\tau^-$ to one of several decay modes. [...]
CERN-EP-99-032.- Geneva : CERN, 1999 - 26 p. - Published in : Phys. Lett. B 453 (1999) 169 Fulltext: PDF; - CERN library copies
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1 Ballocchi, G.
1 Ballocchi, Giuseppe
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