Materias dentro de su búsqueda.
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1921
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1922“…What we call the Anti-GUT model is extended a bit to include also right-handed neutrinos and thus make use of the see-saw mechanism for neutrino masses. …”
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1923“…Low energy supersymmetry with bilinear breaking of R-parity leads to a weak-scale seesaw mechanism for the atmospheric neutrino scale and a radiative mechanism for the solar neutrino scale. …”
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1924“…Continuing previous work, a model independent analysis of the solar neutrino anomaly is performed in terms of neutrino oscillations, allowing a comparison with the predictions of the Standard Solar Model. …”
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1925por Giudice, Gian F., Kolb, Edward W., Riotto, Antonio, Semikoz, Dmitry V., Tkachev, Igor I.“…In this paper we show that decoupling of Standard Model neutrinos in low reheat models may result in neutrino densities very much less than usually assumed, and thus their mass may be in the keV range. …”
Publicado 2000
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1926“…The possibility of detecting single heavy Dirac and Majorana neutrinos at LEP II is investigated in detail. We study the process $e^+e^- \longrightarrow \nu_{\ell} \ell q_i \bar q_j $ as a clear signature for heavy neutrinos. …”
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1927
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1928
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1929
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1930
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1931“…Matter effects in neutrino propagation translate into effective parameters for the oscillation and fake CP- and CPT-odd quantities, even in a scenario, such as $\Delta_{12}=0$, where no genuine CP violation is present. …”
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1932“…These formulae can be of great practical importance for fast calculations of neutrino fluxes and for designing new neutrino beam-lines. …”
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1933por Sievers, P“…As production target for Neutron Factories, free mercury jets with high axial velocity of about 20Â m/s are being studied. For the CERN-Neutrino-Factory proposal with a 4 MW beam power, but with a relatively large beam size at 2.2 GeV/c and pulsed at 75 Hz, maximum energy deposition densities of below 20 J/g and average power densities of about 1 kW/g are expected. …”
Publicado 2001
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1934por Garoby, R“…Development is necessary in a large number of technologies before a Neutrino Factory complex can be built. In the case of the CERN project [1, 2, 3], with the help of other laboratories, work is progressing on the systems incorporated in the reference scheme. …”
Publicado 2001
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1935por Gómez-Cadenas, J J“…The prospects of measuring CP violation in the leptonic sector using the intense neutrino beams arising from muon decay in the straight sections of a muon accumulator ring (the so-called neutrino factory) are discussed.…”
Publicado 2001
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1936por Ambrosio, M, Ammossov, V, Bergamasco, L, Bonesini, M, Calvi, M, Cundy, Donald C, Gustavino, C, Mannocchi, G, Matteuzzi, C, Musy, M, Negri, P, Paganoni, M, Periale, L, Picchi, P, Pietropaolo, F, Pullia, Antonio, Ragazzi, S, Redaelli, N G, Satta, G, Tabarelli de Fatis, T, Tonazzo, A, Trinchero, G C, Vannucci, FrançoisEnlace del recurso
Publicado 2001
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1937por Dighe, Amol S.“…We explore the earth matter effects on the energy spectra of neutrinos from a supernova. We show that the observations of the energy spectra of $\nu_e$ and $\bar{\nu}_e$ from a galactic supernova may enable us to identify the solar neutrino solution, to determine the sign of $\Delta m^2_{32}$, and to probe the mixing matrix element $|U_{e3}|^2$ to values as low as $10^{-3}$. …”
Publicado 2001
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1938
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1939“…In this talk we present the update (including the recent SNO results) of our analysis of the neutrino oscillation solutions of the solar and atmospheric neutrino problems in the framework of four-neutrino mixing where a sterile neutrino is added to the three standard ones and the mass spectra present two separated doublets. …”
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1940