Measurement of the γγ* → π^0 transition form factor (2009)
Aubert, B., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., Prudent , X., ...
We study the reaction e^(+)e^(-) → e^(+)e^(-)π^0 in the single tag mode and measure the differential cross section dσ/dQ^2 and the γγ* → π^0 transition form factor in the momentum transfer...
Search for Dimuon Decays of a Light Scalar Boson in Radiative Transitions Y → yA^0 (2009)
Aubert, B., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., Prudent, X., ...
We search for evidence of a light scalar boson in the radiative decays of the Υ(2S) and Υ(3S) resonances: Υ(2S,3S) → γA^0, A^0 →µ^+µ^-. Such a particle appears in extensions of the standard...
Search for second-class currents in τ^- → ωπ^(-)ν_τ (2009)
Aubert, B., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., Prudent, X., ...
We report an analysis of τ^- decaying into ωπ^(-)ν_τ with ω → π^(+)π^(-)π^0 using a data sample containing nearly 320 × 10^6 pairs collected with the BABAR detector at the PEP-II...
Search for B0 meson decays to pi^0KS^0KS^0, etaKS^0KS^0, and eta^([prime])KS^0KS^0 (2009)
Aubert, B., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., Prudent, X., ...
We describe searches for B^0 meson decays to the charmless final states π^(0)K^(0)_(S)K^(0)_(S), ηK^(0)_(S)K^(0)_(S), and η'K^(0)_(S)K^(0)_(S). The data sample corresponds to 467 × 10^6...
Extra phase noise from thermal fluctuations in nonlinear optical crystals (2009)
Cesar, J. E. S., Coelho, A. S., Cassemiro, K. N., Villar, A. S., Lassen, M., Nussenzveig, P., ...
We show theoretically and experimentally that scattered light by thermal phonons inside a second-order nonlinear crystal is the source of additional phase noise observed in Optical Parametric...
AD-based perturbation methods for uncertainties and errors (2009)
Belme, A., Martinelli, M., Hascoët, L., Pascual, V., Dervieux, Alain
The progress of Automatic Differentiation ({\bf AD}) and its impact on perturbation methods is the object of this paper. AD studies show an important activity for developing methods addressing the...
AD-based perturbation methods for uncertainties and errors (2009)
Belme, A., Martinelli, M., Hascoët, L., Pascual, V., Dervieux, Alain
The progress of Automatic Differentiation ({\bf AD}) and its impact on perturbation methods is the object of this paper. AD studies show an important activity for developing methods addressing the...
Fas receptor is not present on ejaculated human sperm (2008)
Perticarari, S., Ricci, G., Boscolo, R., De Santis, M., Pagnini, G., Martinelli, M., ...
BACKGROUND Apoptosis appears to have an essential role in the control of testis germ cell number and Fas expression has been reported in apoptotic spermatocytes and spermatids. We investigated if Fas...
Department of Electronics and Information, (2007)
P. Boffi, G. Maier, M. Martinelli, A. Pattavina
The contribute reviews aspects of the interaction between the asynchronous transfer mode (ATM) technology and the optical technologies. ATM for broadband networks presents some issues which result...
Lezama, A., Valente, P., Failache, H., Martinelli, M., Nussenzveig, P.
We have numerically solved the Heisenberg-Langevin equations describing the propagation of quantized fields through an optically thick sample of atoms. Two orthogonal polarization components are...
Cassemiro, K. N., Villar, A. S., Martinelli, M., Nussenzveig, P.
We experimentally investigate quadrature correlations between pump, signal, and idler fields in an above-threshold optical parametric oscillator. We observe new quantum correlations among the pump...
Experimental observation of three-color optical quantum correlations (2006)
Cassemiro, K. N., Villar, A. S., Valente, P., Martinelli, M., Nussenzveig, P.
Quantum correlations between bright pump, signal, and idler beams produced by an optical parametric oscillator, all with different frequencies, are experimentally demonstrated. We show that the...
Villar, A. S., Martinelli, M., Fabre, C., Nussenzveig, P.
We calculate the quantum correlations existing among the three output fields (pump, signal, and idler) of a triply resonant non-degenerate Optical Parametric Oscillator operating above threshold. By...
A new concept of (open) TE011 cylindrical cavity (2006)
Annino, G., Cassettari, M., Martinelli, M.
The confinement properties of the open structure formed crossing a circular waveguide perpendicular to a parallel-plate waveguide are discussed, highlighting the fundamental differences with respect...
Orbital angular momentum exchange in parametric down conversion (2006)
Huguenin, J. A. O., Martinelli, M., Caetano, D. P., Dos Santos, B. C., Almeida, M. P., Ribeiro, P. H. S., ...
Orbital angular momentum exchange, both in cavity free stimulated parametric down conversion and in an optical parametric oscillator, is studied. In both cases, the conditions for parametric...
Orbital angular momentum exchange in parametric down conversion (2006)
Huguenin, J. A. O., Martinelli, M., Caetano, D. P., Dos Santos, B. C., Almeida, M. P., Ribeiro, P. H. S., ...
Orbital angular momentum exchange, both in cavity free stimulated parametric down conversion and in an optical parametric oscillator, is studied. In both cases, the conditions for parametric...
Properties of trapped electromagnetic modes in coupled waveguides (2005)
Annino, G., Yashiro, H., Cassettari, M., Martinelli, M.
The existence of trapped modes in coupled electromagnetic waveguides is experimentally investigated for configurations with different degrees of symmetry supporting hybrid modes. The occurrence of...
Generation of Bright Two-Color Continuous Variable Entanglement (2005)
Villar, A. S., Cruz, L. S., Cassemiro, K. N., Martinelli, M., Nussenzveig, P.
We present the first measurement of squeezed-state entanglement between the twin beams produced in an Optical Parametric Oscillator (OPO) operating above threshold. Besides the usual squeezing in the...
Annino, G., Cassettari, M., Fittipaldi, M., Martinelli, M.
A novel single-mode resonant structure which enables the rotation of the sample about two orthogonal axes is investigated in view of electron paramagnetic resonance applications. The proposed...
Annino, G., Cassettari, M., Martinelli, M.
The concept of nonradiative dielectric resonator is generalized in order to include axially open configurations having rotational invariance. The resulting additional nonradiative conditions are...
Bercu, V., Martinelli, M., Massa, C. A., Pardi, L. A., Leporini, D.
The reorientation of one small paramagnetic molecule (spin probe) in glassy polystyrene (PS) is studied by high-field Electron Spin Resonance spectroscopy at two different Larmor frequencies (190 and...
Open nonradiative cavities as millimeter wave single-mode resonators (2004)
Annino, G., Cassettari, M., Martinelli, M.
Open single-mode metallic cavities operating in nonradiative configurations are proposed and demonstrated. Starting from well-known dielectric resonators, possible nonradiative cavities have been...
Orbital angular momentum exchange in an optical parametric oscillator (2004)
Martinelli, M., Huguenin, J. A. O., Nussenzveig, P., Khoury, A. Z.
We present a study of orbital angular momentum transfer from pump to down-converted beams in a type-II Optical Parametric Oscillator. Cavity and anisotropy effects are investigated and demostrated to...
Noise spectroscopy of non-linear magneto optical resonances in Rb vapor (2003)
Martinelli, M., Valente, P., Failache, H., Felinto, D., Cruz, L. S., Nussenzveig, P., ...
Nonlinear magneto-optical (NMO) resonances occurring for near-zero magnetic field are studied in Rb vapor using light-noise spectroscopy. With a balanced detection polarimeter, we observe high...
Manetta,G. I., Benedito-Cecilio,E., Martinelli,M.
In order to verify the carbon source and trophic position of the main species of fishes, of the Paraná River floodplain, we analysed the proportion of stable carbon (delta13C) and nitrogen...
Study On Planar Whispering Gallery Dielectric Resonators. I. General Properties (2002)
Annino, G., Cassettari, M., Martinelli, M.
Several basic properties of homogeneous planar Whispering Gallery dielectric resonators are investigated through a general approach. In particular the values for the minimum and maximum allowed...
Study On Planar Whispering Gallery Dielectric Resonators. II. A Multiple-Band Device (2002)
Annino, G., Cassettari, M., Martinelli, M.
The basic theory underlying the realization of simple multiple-band non-homogeneous dielectric resonators, whose spectral response is the overlap of single-resonator frequency bands, is developed...
Complex Response Function of Magnetic Resonance Spectrometers (2002)
Annino, G., Cassettari, M., Fittipaldi, M., Martinelli, M.
A vectorial analysis of magnetic resonance spectrometers, based on traveling wave resonators and including the reference arm and the automatic control of frequency, has been developed. The proposed...
Brunel, L. C., Caneschi, A., Dei, A., Friselli, D., Gatteschi, D., Hassan, A. K., ...
The experimental problems linked to the use of the ultra-wide band high field-high frequency Electron Paramagnetic Resonance (HF2-EPR) spectrometers are illustrated with some key examples. The single...
Microfabricated polymer injector for direct mass spectrometry coupling (2002)
Gobry, V., Van Oostrum, J., Martinelli, M., Rohner, T. C., Reymond, F., Rossier, J. S., ...
Classical and quantum properties of optical parametric oscillators (2001)
Martinelli,M., Garrido Alzar,C. L., Souto Ribeiro,P. H., Nussenzveig,P.
We present a review of the Optical Parametric Oscillator (OPO), describing its operation and the quantum correlation between the light beams generated by this oscillator. We show the construction of...
Martinelli, M., Zhang, K. S., Coudreau, T., Maitre, A., Fabre, C.
We have operated a CW triply resonant OPO using a PPLN crystal pumped by a Nd:YAG laser at 1.06 micron and generating signal and idler modes in the 2-2.3 micron range. The OPO was operated stably in...
Zhang, K. S., Coudreau, T., Martinelli, M., Maitre, A., Fabre, C.
We have used an ultra-low threshold continuous-wave Optical Parametric Oscillator (OPO) to reduce the quantum fluctuations of the reflected pump beam below the shot noise limit. The OPO consisted of...
Extrinsic versus intrinsic high-field and high-frequency EPR properties of magnetic materials (2001)
Lenci, L., Martinelli, M., Massa, C. A., Pardi, L. A., Ricci, I., Hassan, A. K., ...
Performing high-field and high-frequency electron paramagnetic resonance (HFHFEPR) experiments on a one-dimensional (I-D) magnetic system, we put in evidence a number of effects that can be...
Marchetti, S., Bartalini, S., Simili, R., Martinelli, M.
In this work a summary of many pulse compressed (< 10ns), FIR, high power, Raman emissions produced by a short pulse (25 ns) broadband (2GHz) CO2 laser is shown. Generally it has been always possible...
Marchetti, S., Bartalini, S., Simili, R., Martinelli, M.
In this work a summary of many pulse compressed (< 10ns), FIR, high power, Raman emissions produced by a short pulse (25 ns) broadband (2GHz) CO2 laser is shown. Generally it has been always possible...
Marchetti, S., Bartalini, S., Simili, R., Martinelli, M.
In this work a summary of many pulse compressed (< 10ns), FIR, high power, Raman emissions produced by a short pulse (25 ns) broadband (2GHz) CO2 laser is shown. Generally it has been always possible...
Distributed Laser Doppler Velocimetry: A New Tool for Experimental Fluid-Mechanics, (1992)
Gusmeroli, V., Martinelli, M., Angelico, G.
A novel monobeam Distributed Laser Doppler Velocimeter, DLDV, that permits a fast recovery of the flow profile is described. The DLDV use of low-coherence multiplexing concept, along a reference-beam...
BISTABLE BEHAVIOUR OF AN ELECTRON PARAMAGNETIC RESONANCE SPECTROMETER (1988)
Cacchiani, M., Giordano, M., Martinelli, M., Pardi, L., Santucci, S.
Bistability phenomena have been observed in a standard electron paramagnetic resonance spectrometer under proper experimental setting-up. An almost complete characterization and explanation of the...
BISTABLE BEHAVIOUR OF AN ELECTRON PARAMAGNETIC RESONANCE SPECTROMETER (1988)
Cacchiani, M., Giordano, M., Martinelli, M., Pardi, L., Santucci, S.
Bistability phenomena have been observed in a standard electron paramagnetic resonance spectrometer under proper experimental setting-up. An almost complete characterization and explanation of the...
BISTABLE BEHAVIOUR OF AN ELECTRON PARAMAGNETIC RESONANCE SPECTROMETER (1988)
Cacchiani, M., Giordano, M., Martinelli, M., Pardi, L., Santucci, S.
Bistability phenomena have been observed in a standard electron paramagnetic resonance spectrometer under proper experimental setting-up. An almost complete characterization and explanation of the...
Heat related mortality in warm and cold regions of Europe: observational study
Keatinge, W R, Donaldson, G C, Cordioli, Elvira, Martinelli, M, Kunst, A E, Mackenbach, J P, ...
Heat related mortality in warm and cold regions of Europe: observational study
Keatinge, W R, Donaldson, G C, Cordioli, Elvira, Martinelli, M, Kunst, A E, Mackenbach, J P, ...
Martinelli, M, Bonezzi, K, Riccardi, E, Kuhn, E, Frapolli, R, Zucchetti, M, ...
The clinical success of small-molecule vascular disrupting agents (VDAs) depends on their combination with conventional therapies. Scheduling and sequencing remain key issues in the design of...