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Portineria DIFA - Sede principale

Dipartimento di Fisica e Astronomia

viale Berti Pichat, 6/2

40127 - Bologna - Italia

tel: +39 051 20 9 5162

fax: +39 051 252774

Portineria sede di via Irnerio

via Irnerio, 46

40126 - Bologna - Italia

tel: +39 051 2091004

Orari di apertura
Lunedì-venerdì: ore 8:00-18:00

Direttore

Nicola Semprini Cesari

tel: +39 051 2095254

Responsabile Amministrativo

Maria Giovanna Piazza

tel: +39 051 2095257

 
Sezioni

10th Conference of the Italian LCA Network: Life Cycle Thinking, Sustainability and Circular Economy

The aim of the conference is to present the role of Life Cycle Thinking in moving society towards sustainability.

New limits on neutrinoless double beta decay

The measurements performed in the first year on a tower of the CUORE experiment, in the INFN Laboratories of Gran Sasso, made it possible to reduce the upper limit on the probability of the 130Te decay with production of two electrons and the absence of neutrinos.

News DIFA

ANTARES and IceCube joint search opens a new dimension in Neutrino Astronomy
A combined analysis for the search for cosmic neutrino point-sources over the whole Southern Sky has been performed by the two complementary neutrino telescope. Although no excess has been observed, it has been shown that the combination of both data samples improves the sensitivity for point-sources up to a factor two.
New type of Hill top inflation
A new model of cosmological inflation is proposed. It is based on the idea that an initial quantum state of the Universe is not pure but mixed and is described by a micorocanonical density matrix. The model predicts reasonable value of some observable quantities.
Low-temperature technique of very thin silicon ion implanted epitaxial detectors
A new technique of large-area thin ion implanted silicon detectors has been developed by the FAZIA Collaboration. Preliminary results of these detectors used as a first stage in a ΔE − E telescope are very encouraging, allowing charge identification in the range Z = 2–25, at low energy thresholds.
A new test of CPT invariance with light nuclei
A new result has been obtained by the ALICE Collaboration at the CERN Large Hadron Collider (LHC) on the equality of a fundamental property of nuclear matter and anti-matter, the mass. It has been experimentally confirmed on light nuclei to a precision improving the previous limits by factors between 10 and 100.
Charged-particle spectroscopy in organic semiconducting single crystals
Direct charged-particle detectors based on solution-grown Organic Semiconducting Single Crystals (OSSCs) are shown to be capable to detect charged particles. The good peak discrimination allow to estimate the µτ value, and to perform Time-of-Flight experiments on such kind of organic materials.
Local structure of V dopants in TiO2 nanoparticles for photocatalysis
Doping with transition metals enhances light absorption in TiO2 nanoparticles improving photocatalytic efficiency. Using X-ray absorption spectroscopy we demonstrate that V occupies substitutional sites in the TiO2 structure, irrespective of whether it is similar to rutile, anatase or mixed.
Search for neutrino emission in coincidence with the gravitational wave event detected by the LIGO observatories
On September 14th, 2015, a gravitational wave was recorded by the LIGO detectors. A search for high-energy neutrino emission in coincidence with this event was performed, using the data recorded by the ANTARES and IceCube neutrino telescopes. No neutrino was found, establishing the first experimental limit to the joint production of neutrinos from a gravitational wave source
Non-thermal dark matter in supersymmetric models with a 125 GeV Higgs
We study the phenomenology of supersymmetric theories where a non-thermally produced neutralino can play the role of dark matter. Focusing on models which give a correct Higgs mass around 125 GeV, no dark matter overproduction and satisfay all existing exparimental bounds from colliders, cosmic microwave background data, direct and indirect dark matter searches, we find that the neutralino has to be Higgsino-like with a mass around 300 GeV
Iterative approach to self-adapting and altitude-dependent regularization for atmospheric profile retrievals
A practical approach is proposed to apply a regularization constraint to concentration profiles of atmospheric constituents obtained from the ill-conditioned inversion of spectroscopic measurements. The strength of the constraint is self-adapting and height-dependent
The rise of low-cost sensing for managing air pollution in cities
Impacts on the health of city dwellers due to high air pollution exposure are unknown; Conventional sparse monitoring stations are unable to identify pollution hotspots; Low-cost micro-scale sensing allows capturing real-time high-grained pollution data; Fundamental drivers behind the rise of low-cost sensing and challenges are discussed.
City breathability in medium density urban-like geometries evaluated through the pollutant transport rate and the net escape velocity
Pollutant removal in urban canopy models (UCL) models of medium building density is studied. Pollutant transport rate (PTR) and net escape velocity (NEV) are used as ventilation indicators. NEV is smaller in UCLs with longer streets due to pollutant accumulation effect. Parallel wind and wall heating get bigger NEV than oblique wind and isothermal case. Building height variations enhance pollutant removal across street roofs.
Premio Musto 2015 per la Fisica Teorica a Michele Cicoli
Il conferimento del premio motivato dalla ampia produzione su varie tematiche tutte di grande interesse e, in particolare, dai risultati ottenuti nell’ambito della cosiddetta “Fenomemologia di Stringa”.
Opere della biblioteca “Guido Horn D’Arturo” disponibili in rete
AMS Historica è una delle collezioni di AlmaDL e ospita le digitalizzazioni di opere antiche e di pregio conservate presso le biblioteche e gli archivi dell'Università
A simple all-PEDOT:PSS electrochemical transistor for ascorbic acid sensing
Over the past decade, the development of organic electronics has led to the fabrication of new devices that find application in many fields of science and technology
A very active group
Multiple AGN in the crowded field of the compact group SDSSJ0959+1259
Charge Density Increase in Sub-Monolayer Organic Field-Effect Transistors
The researchers found that even in the so-called sub-monolayer regime charge transport happens along a percolation path.
GEMINI/GeMS observations unveil the structure of the heavily obscured globular cluster Liller 1
By exploiting the near-IR camera GSAOI combined with the multi-conjugate adaptive optics system GeMS at the GEMINI South Telescope, our group investigated the heavily obscured globular cluster Liller 1 in the Galactic bulge.
Horizon Wave-Function and the Quantum Cosmic Censorship
Some cosmological notions are extended to the realm of black hole physics by means of the horizon wave function formalism, developed by the authors. The essence of this formalism is that basic black hole physics notions, like the event horizon radius, acquire a quantum probabilistic character.
Nanocrystal Formation in Silicon Oxy-Nitride Films for Photovoltaic Applications: Optical and Electrical Properties
In the present contribution we investigated the properties of one Si based oxides (SiOxNy) which has recently attracted a lot of attention in different and innovative applications, like CO2 capture, waveguides for nanosensors, and as conductive oxide.
Optical Properties of Nanoporous Germanium Thin Films
In the present article we report enhanced light absorption, tunable size-dependent blue shift, and efficient electron–hole pairs generation in Ge nanoporous films (np-Ge) grown on Si.
Physical and Electrochemical Properties of PEDOT:PSS as a Tool for Controlling Cell Growth
In this work, researchers of the DIFA report on the results they have obtained on thin films of PEDOT:PSS (poly(3,4-ethylenedioxythiophene) poly-(styrenesulfonate)).
Resonant X-ray scattering probes electron transfer in TiO2 nanoparticles
Advances in experimental methods based on synchrotron radiation make it possible to obtain new insights on the structure and properties of nanostructured materials.
Towards Low-Voltage and Bendable X-ray Direct Detectors Based on Organic Semiconducting Single Crystals
Organic materials have been so far mainly proposed as detectors for ionizing radiation in the indirect conversion approach, i.e. as scintillators. Here is reported the first thin and bendable X-ray direct detectorsbased on Organic Semiconducting Single Crystals (OSSCs).
The birth cry of a massive star-forming clump in the distant Universe
Discovery of a giant region of star formation 3 billion years after Big Bang
Thermal corpuscular black holes
Quantum black holes are represented as Bose-Einstein condensates. The qualitatively new result is that back reaction effects eventually stop the quantum process of black hole evaporation.
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Contatti

Portineria DIFA - Sede principale

Dipartimento di Fisica e Astronomia

viale Berti Pichat, 6/2

40127 - Bologna - Italia

tel: +39 051 20 9 5162

fax: +39 051 252774

Portineria sede di via Irnerio

via Irnerio, 46

40126 - Bologna - Italia

tel: +39 051 2091004

Orari di apertura
Lunedì-venerdì: ore 8:00-18:00

Direttore

Nicola Semprini Cesari

tel: +39 051 2095254

Responsabile Amministrativo

Maria Giovanna Piazza

tel: +39 051 2095257