activity
20212026
most citedDoes the Geminga, Monogem and PSR J0622+3749 -ray halos imply slow diffusion around pulsars?

49 citations · 161 across the 18 of their papers we have counts for

collaborators

18 papers

astro-ph.HE2026

Hybrid Simulations of Proton Acceleration at Oblique High- Shocks

Yevhen Kylivnyk, Damiano Caprioli, Luca Orusa

Collisionless shocks in the intracluster and intergalactic medium (ICM/IGM) are expected to energize both electrons and ions. While electron acceleration is revealed by prominent r…

physics.plasm-ph2026

Ion Weibel Instability in the hybrid framework: the optimal resolution

Luca Orusa, Taiki Jikei

The study of collisionless shocks and their role in cosmic-ray acceleration has gained increasing importance through both observations and simulations. Accurately modeling the shoc…

astro-ph.HE2025

Self-confinement of relativistic pair beams in magnetized interstellar plasmas: the case of pulsar X-ray filaments

Luca Orusa, Lorenzo Sironi

The observation of filamentary X-ray structures near bow-shock pulsar wind nebulae (PWNe) -- such as the Guitar, Lighthouse, and PSR J20304415 nebulae -- and of slow-diffusion r…

astro-ph.HE2025

Deep Learning Analysis of Ions Accelerated at Shocks

Paxson Swierc, Damiano Caprioli, Luca Orusa +1

We study the application of deep learning techniques to the analysis and classification of ions accelerated at collisionless shocks in hybrid (kinetic ions--fluid electrons) simula…

astro-ph.HE2025★ 2 cited

Acceleration of Heavy Ions at Non-Relativistic Collisionless Shocks

Damiano Caprioli, Luca Orusa, Miha Cernetic +2

We investigate the process of Diffusive Shock Acceleration (DSA) of particles with mass number to charge number ratios , e.g., partially-ionized heavy ions. To this end, w…

astro-ph.HE2025★ 1 cited

New determination of the neutrino hadronic production cross sections from GeV to beyond PeV energies

Luca Orusa, Mattia Di Mauro, Fiorenza Donato

The flux of astrophysical neutrinos is now measured with unprecedented accuracy and over several decades of energy spectrum. Their origin traces back to hadronic collisions between…

astro-ph.HE2025★ 2 cited

The role of three-dimensional effects on ion injection and acceleration in perpendicular shocks

Luca Orusa, Damiano Caprioli, Lorenzo Sironi +1

Understanding the conditions that enable particle acceleration at non-relativistic collisionless shocks is essential to unveil the origin of cosmic rays. We employ 2D and 3D hybrid…

hep-ex2025

Precision cross-sections for advancing cosmic-ray physics. Input to the 2026 ESPPU from the XSCRC community

S. Mariani, L. Audouin, E. Berti +32

The latest generation of cosmic-ray direct detection experiments is providing a wealth of high-precision data, stimulating a very rich and active debate in the community on the rel…

astro-ph.HE2025★ 6 cited

Precision cross-sections for advancing cosmic-ray physics and other applications: a comprehensive programme for the next decade

D. Maurin, L. Audouin, E. Berti +32

Cosmic-ray physics in the GeV-to-TeV energy range has entered a precision era thanks to recent data from space-based experiments. However, the poor knowledge of nuclear reactions,…

physics.plasm-ph2025★ 4 cited

Criteria for ion acceleration in laboratory magnetized quasi-perpendicular collisionless shocks: when are 2D simulations enough?

Luca Orusa, Vicente Valenzuela-Villaseca

The study of collisionless shocks and their role in cosmic ray acceleration has gained importance through observations and simulations, driving interest in reproducing these condit…

astro-ph.HE2024★ 7 cited

Disclosing the catalog pulsars dominating the Galactic positron flux

Luca Orusa, Silvia Manconi, Fiorenza Donato +1

The cosmic-ray flux of positrons is measured with high precision by the space-borne particle spectrometer AMS-02. The hypothesis that pulsars and their nebulae can significantly co…

hep-ex2024

QCD challenges from pp to AA collisions -- 4th edition

Javira Altmann, Carlota Andres, Anton Andronic +57

This paper is a write-up of the ideas that were presented, developed and discussed at the fourth International Workshop on QCD Challenges from pp to AA, which took place in Februar…

astro-ph.HE2023★ 2 cited

Fast particle acceleration in 3D hybrid simulations of quasi-perpendicular shocks

Luca Orusa, Damiano Caprioli

Understanding the conditions conducive to particle acceleration at collisionless, non-relativistic shocks is important for the origin of cosmic rays. We use hybrid (kinetic ions --…

astro-ph.HE2023★ 18 cited

A novel prediction for secondary positrons and electrons in the Galaxy

Mattia Di Mauro, Fiorenza Donato, Michael Korsmeier +2

The Galactic flux of cosmic-ray (CR) positrons in the GeV to TeV energy range is very likely due to different Galactic components. One of these is the inelastic scattering of CR nu…

astro-ph.HE2023★ 12 cited

New determination of the production cross section for rays in the Galaxy

Luca Orusa, Mattia Di Mauro, Fiorenza Donato +1

The flux of rays is measured with unprecedented accuracy by the Large Area Telescope from 100 MeV to almost 1 TeV. In the future, the Cherenkov Telescope Array…

astro-ph.HE2022★ 24 cited

New determination of the production cross section for secondary positrons and electrons in the Galaxy

Luca Orusa, Mattia Di Mauro, Fiorenza Donato +1

The cosmic-ray fluxes of electrons and positrons () are measured with high precision by the space-borne particle spectrometer AMS-02. To infer a precise interpretation of…

astro-ph.HE2021★ 34 cited

Constraining positron emission from pulsar populations with AMS-02 data

Luca Orusa, Silvia Manconi, Fiorenza Donato +1

The cosmic-ray flux of positrons is measured with high precision by the space-borne particle spectrometer AMS-02. The hypothesis that pulsar wind nebulae (PWNe) can significantly c…

astro-ph.HE2021★ 49 cited

Does the Geminga, Monogem and PSR J0622+3749 -ray halos imply slow diffusion around pulsars?

Sarah Recchia, Mattia Di Mauro, Felix A. Aharonian +4

The HAWC Collaboration has reported the detection of an extended -ray emission around the Geminga and Monogem pulsars of a few degree extension. Very recently, the LHAASO Collab…