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Direttore

Nicola Semprini Cesari

tel: +39 051 2095254

Responsabile Amministrativo

Maria Giovanna Piazza

tel: +39 051 2095257

Portineria sede di via Irnerio

via Irnerio, 46

40126 - Bologna - Italia

tel: +39 051 2091004

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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

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Lunedì-venerdì: ore 7:30-19:00

Portineria DIFA-Settore Astronomia: Navile

via Piero Gobetti 93/2

40129 - Bologna

tel: +39 051 2095701

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Discovery of CP violation in charm decays

The LHCb collaboration set an important milestone in the history of particle physics: CP violation was observed for the first time in the decay of particles containing a charm quark. This represents a further step towards theunderstanding of the matter-antimatter asymmetry of the Universe

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A radio ridge connecting two galaxy clusters in a filament of the cosmic web

For the first time ever, a stream of magnetic fields and relativistic electrons along a filament that connects two clusters of galaxies has been identified thanks to observations performed with the LOFAR radio telescope.

News DIFA

BK channel overexpression on plasma membrane of fibroblasts from Hutchinson-Gilford Progeria Syndrome
In the skin cells of patients affected by Hutchinson-Gilford syndrome (a rare genetic disorder characterized by a clinical state of premature aging) we measured, via patch clamp and immunofluorescence imaging techniques, an increase in the number of BK ion channels, while the proliferative capacity decreased with a characteristic phenotype of senescence.
Phase shift in atom interferometers: Corrections for nonquadratic potentials and finite-duration laser pulses
Atom interferometry is made more accurate by removing commonly employed approximations. A detailed model that includes the effect of a small arbitrary gravitational potential and the duration of laser pulses is introduced, leading to interferometers with improved sensitivity.
Quantum Surfaces: polaron quasiparticles interact with CO
The Computational Quantum Materials group (Prof. C. Franchini) in collaboration with the experimental surface science group at TU Wien has found that quantum effects play a decisive role in the adsorption of molecules on oxide surfaces. Results published in "Physical Review Letters" (Editor’s choice).
Boosting direct X-ray detection in organic thin films by small molecules tailoring
In this paper it is reported how, by synthesizing new solution-processable organic molecules with Ge-substitution in place of the Si atoms, have been boosted the X-ray direct detection response of organic thin films on flexible plastic substrates.
Statistical modelling of CG interdistance across multiple organisms
Authors analyzed CG dinucleotide distribution inside 4425 DNA gene sequences, identifying a statistical model that allows to highlight relevant features related to organism complexity.
First measurement of LambdaC-baryon production in heavy-ion collisions at the LHC
The first measurement of LambdaC-baryon production in Pb-Pb collisions at the LHC was presented recently by the ALICE Collaboration. The LambdaC/D0 ratio, which is sensitive to the charm quark hadronisation mechanisms in the medium, is found to be larger than the ratio measured in pp and p-Pb collisions.
1.58 Million seconds of XMM-Newton time to the SUBWAYS project
ESA’s XMM-Newton telescope will observe for about 18 days a sample of 20 quasars to shed light on the launching mechanisms of ultrafast outflows observed at accretion disc scales around the central supermassive black hole. The project is led by Dr. Marcella Brusa, and this is the first time a project of such size is awarded to an Italian woman.
Hibernation for space travel: impact on radioprotection
The idea of exploiting hibernation for radioprotection in space exploration is becoming realistic, thanks to the introduction of specific methods to induce hibernation-like conditions (synthetic torpor) in non-hibernating animals
First observation of the Higgs boson decaying to b-quarks
Great success for the ATLAS experiment: the favored decay of the Higgs boson in a pair of b quarks observed for the first time. The observation of this decay mode and the measurement of its decay rate are mandatory steps to understand the mechanism that gives rise to the mass of particles.
Fibre Bragg Gratings to monitor the deformations of a silicon microstrip vertex detector
The purpose of this research is to investigate whether Fibre Bragg Grating (FBG) technology is suitable to measure the deformations of a silicon microstrip detector module. For the first time, the study of the deformations was carried out using bare FBG sensors glued onto the detector itself.
Kick-off of the iTHEPHY project at DIFA
On October 30th, 2018, participants of the European iTHEPHY project, coordinated by DIFA, met in video conference to launch the most important phase of the project, the tandem-projects. For five months, international teams of students will collaborate to realize an educational project using innovative teaching tools developed on purpose for them.
Tracing the Universe: new data from the XXL survey support the standard cosmological model
The ESA’s XMM-Newton X-ray observatory has been busy with the XXL survey, its largest observational programme to date. The second batch of data has just been released, including information on 365 galaxy clusters. The data provided a new strong confirmation of the standard cosmological scenario.
Scientific principles and public policy
Climatology and Seismology have important societal implications, but modelers have not made clear what is known, and what isn’t. Public policies on climate change and earthquake hazard mitigation necessarily require the search for consensus, but scientific integrity must be preserved first of all.
Pauli–Zeldovich cancellation of the vacuum energy divergences, auxiliary fields and supersymmetry
We have considered the Pauli-Zeldovich mechanism for the cancellation of the ultraviolet divergences in vacuum energy. This mechanism arises because bosons and fermions give contributions of the opposite signs.
Emergence of a dark force in corpuscular gravity
A unified description is proposed for the quantum state of the gravitational field of the Universe is proposed which accounts for dark energy and dark matter.
Phase Transitions in Zn Gauge Models: Towards Quantum Simulations of the Schwinger-Weyl QED
We study 1+1-QED by implementing the Schwinger model on a lattice via a Zn approximation. By performing a numerical analysis, we show that all Zn models exhibit a phase transition which falls in the Ising universality class, with spontaneous symmetry breaking of the CP symmetry.
Self-Bound Quantum Droplets of Atomic Mixtures in Free Space
Self-bound quantum droplets are a newly discovered phase in the context of ultracold atoms. Here we report their experimental realization with a mixture of Bose-Einstein condensates.
Charge carrier dynamics and visible light photocatalysis in V-doped TiO2 nanoparticles
Time-resolved pump-probe optical spectroscopy was applied to elucidate the charge carrier dynamics that underlie the photocatalytic activity of vanadium-doped TiO2 NPs, addressing the role of dopants in extending photocatalytic activity in a visible spectral range where pure TiO2 is inactive.
Space environment effects on flexible, low-voltage organic thin film transistors
Organic electronic devices fabricated on flexible substrates are promising candidates for applications in space environments. The effect of high-energy protons on TIPS-pentacene based OTFTs has been investigated, monitoring device parameters such as threshold voltage, charge mobility and trap density.
Dynamics of direct X-ray detection processes in high-Z Bi2O3 nanoparticles-loaded PFO polymer-based diodes
Direct X-ray radiation detectors based on the semiconducting polymer poly(9,9-dioctyfluorene) blended with Bi2O3 nanoparticles, have been realized, combining mechanical flexibility and large-area processing with a high X-ray stopping power and sensitivity.
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Contatti

Direttore

Nicola Semprini Cesari

tel: +39 051 2095254

Responsabile Amministrativo

Maria Giovanna Piazza

tel: +39 051 2095257

Portineria sede di via Irnerio

via Irnerio, 46

40126 - Bologna - Italia

tel: +39 051 2091004

Orari di apertura
Lunedì-venerdì: ore 7:30-19:00

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

Orari di apertura
Lunedì-venerdì: ore 7:30-19:00

Portineria DIFA-Settore Astronomia: Navile

via Piero Gobetti 93/2

40129 - Bologna

tel: +39 051 2095701

Orari di apertura
Lunedì-venerdì: ore 8:30-18:30