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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PaviaIT2.8k papers
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- Institut de Recherche sur les Lois Fondamentales de l'UniversFR2.4k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT2.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.3k papers
82 papers · 1 filter
The dust-scattering X-ray rings of the anomalous X-ray pulsar 1E 1547.0-5408
A. Tiengo, G. Vianello, P. Esposito +14
On 2009 January 22 numerous strong bursts were detected from the anomalous X-ray pulsar 1E 1547.0-5408. Swift/XRT and XMM-Newton/EPIC observations carried out in the following two…
Combined analysis of Z' -> t tbar and Z' -> t tbar j production for vector resonance searches at LHC
F. del Aguila, J. A. Aguilar-Saavedra, M. Moretti +3
We have implemented a code for Z' + n jets production in ALPGEN, with Z' decays into several final states, including l+ l- and t tbar. The MLM prescription is used for matching the…
At the borderline between exclusive and inclusive physics: Study of Drell-Yan fragments in the PANDA experiment (A preliminary simulation)
Andrea Bianconi
Here a preliminary study is presented concerning the detection of the normally unseen Drell-Yan fragments, possible in the PANDA experiment. To work as a multi-purpose apparatus, t…
Temporal properties of GX 301-2 over a year-long observation with SuperAGILE
Y. Evangelista, M. Feroci, E. Costa +52
We present the long-term monitoring of the High Mass X-ray Binary GX 301-2 performed with the SuperAGILE instrument on-board the AGILE mission. The source was monitored in the 20-6…
Transverse momentum dependent parton distributions and azimuthal asymmetries in light-cone quark models
B. Pasquini, S. Boffi, A. V. Efremov +1
We review the information on the spin and orbital angular momentum structure of the nucleon encoded in the T-even transverse momentum dependent parton distributions within light-co…
Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data
S. Actis, A. Arbuzov, G. Balossini +53
We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e+e- colliders in Beijing,…
XMM-Newton and Swift observations prove GRB 090709A to be a distant, standard, long GRB
A. De Luca, P. Esposito, G. L. Israel +4
GRB 090709A is a long gamma-ray burst (GRB) discovered by Swift, featuring a bright X-ray afterglow as well as a faint infrared transient with very red and peculiar colors. The bur…
Discovery of extreme particle acceleration in the microquasar Cygnus X-3
M. Tavani, A. Bulgarelli, G. Piano +67
The study of relativistic particle acceleration is a major topic of high-energy astrophysics. It is well known that massive black holes in active galaxies can release a substantial…
Azimuthal asymmetries in exclusive four-particle "Drell-Yan" events, with lepton-antilepton plus proton-antiproton detection, in proton-antiproton scattering
Andrea Bianconi
I study hard collisions between unpolarized protons and antiprotons where a lepton-antilepton pair is detected in coincidence with a final proton-antiproton pair, and no more parti…
The discovery of a massive white dwarf in the peculiar binary system HD 49798/RX J0648.0-4418
S. Mereghetti, A. Tiengo, P. Esposito +3
An XMM-Mewton observation performed in May 2008 has confirmed that the 13 seconds pulsations in the X-ray binary HD 49798/RX J0648.0-4418 are due to a rapidly rotating white dwarf.…
A Measurement of Coherent Neutral Pion Production in Neutrino Neutral Current Interactions in NOMAD
C. T. Kullenberg, S. R. Mishra
We present a study of exclusive neutral pion production in neutrino-nucleus Neutral Current interactions using data from the NOMAD experiment at the CERN SPS. The data correspond t…
A new light boson from MAGIC observations?
Marco Roncadelli, Alessandro De Angelis, Oriana Mansutti
Recent detection of blazar 3C279 by MAGIC has confirmed previous indications by H.E.S.S. that the Universe is more transparent to very-high-energy gamma rays than currently thought…
Generalized parton distributions of the pion in a covariant Bethe-Salpeter model and light-front models
T. Frederico, E. Pace, B. Pasquini +1
The generalized parton distributions of the pion are studied within different light-front approaches for the quark-hadron and quark-photon vertices, exploring different kinematical…
Detection of distant AGN by MAGIC: the transparency of the Universe to high-energy photons
Marco Roncadelli, Alessandro De Angelis, Oriana Mansutti
The recent detection of blazar 3C279 by MAGIC has confirmed previous indications by H.E.S.S. that the Universe is more transparent to very-high-energy gamma rays than previously th…
Exact Moment Scaling from Multiplicative Noise
Giacomo Bormetti, Danilo Delpini
For a general class of diffusion processes with multiplicative noise, describing a variety of physical as well as financial phenomena, mostly typical of complex systems, we obtain…
On the spinfoam expansion in cosmology
Carlo Rovelli, Francesca Vidotto
We consider the technique introduced in a recent work by Ashtekar, Campiglia and Henderson, which generate a spinfoam-like sum from a Hamiltonian theory. We study the possibility o…
Light-front interpretation of Proton Generalized Polarizabilities
M. Gorchtein, C. Lorcé, B. Pasquini +1
We extend the recently developed formalism to extract light-front quark charge densities from nucleon form factor data to the deformations of these quark charge densities when appl…
Monitoring the hard X-ray sky with SuperAGILE
M. Feroci, E. Costa, E. Del Monte +77
SuperAGILE is the hard X-ray monitor of the AGILE gamma ray mission, in orbit since 23 April 2007. It is an imaging experiment based on a set of four independent silicon str…
Multiwavelength observations of 3C 454.3 II. The AGILE 2007 December campaign
I. Donnarumma, G. Pucella, V. Vittorini +75
We report on the second AGILE multiwavelength campaign of the blazar 3C 454.3 during the first half of December 2007. This campaign involved AGILE, Spitzer, Swift,Suzaku,the WEBT c…
Multiwavelength observations of a TeV-Flare from W Comae
VERITAS collaboration, V. A. Acciari, E. Aliu +167
We report results from an intensive multiwavelength campaign on the intermediate-frequency-peaked BL Lacertae object W Com (z=0.102) during a strong outburst of very high energy ga…
The spin structure of the nucleon in light-cone quark models
B. Pasquini, S. Boffi, P. Schweitzer
The quark spin densities related to generalized parton distributions in impact-parameter space and to transverse-momentum dependent parton distributions are reviewed within a light…
Probing the parton content of the nucleon
S. Boffi, B. Pasquini
The parton content of the nucleon is explored within a meson-cloud model developed to derive light-cone wave functions for the physical nucleon. The model is here applied to study…
Free electron lifetime achievements in Liquid Argon Imaging TPC
B. Baibussinov, M. Baldo Ceolin, E. Calligarich +11
A key feature for the success of the liquid Argon imaging TPC (LAr-TPC) technology is the industrial purification against electro-negative impurities, especially Oxygen and Nitroge…
Proton spectra from Non-Mesonic Weak Decay of p-shell Lambda-Hypernuclei and evidence for the two-nucleon induced process
M. Agnello, A. Andronenkov, G. Beer +48
New spectra from the FINUDA experiment of the Non Mesonic Weak Decay (NMWD) proton kinetic energy for 9(Lambda)Be, 11(Lambda)B, 12(Lambda)C, 13(Lambda)C, 15 (Lambda)N and 16(Lambda…