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Cosmic-ray anti-nuclei provide a promising discovery channel for the indirect detection of particle dark matter. Hadron showers produced by the pair-annihilation or decay of Galactic dark matter generate anti-nucleons which can in turn form…

High Energy Physics - Phenomenology · Physics 2015-06-18 Eric Carlson , Adam Coogan , Tim Linden , Stefano Profumo , Alejandro Ibarra , Sebastian Wild

The production mechanism of light nuclei, such as deuteron, helium-3, tritium and their antiparticles, has recently attracted an increased attention from the astroparticle and heavy ion communities. The expected low astrophysical background…

High Energy Physics - Phenomenology · Physics 2020-12-23 J. Tjemsland

The possibility of antihelium production in interaction of cosmic rays with the interstellar gas is studied using large-scale Monte Carlo simulations. For this purpose, an energy-dependent coalescence mechanism developed previously is…

High Energy Astrophysical Phenomena · Physics 2020-09-23 Anirvan Shukla , Amaresh Datta , Philip von Doetinchem , Diego-Mauricio Gomez-Coral , Carina Kanitz

Antinuclei can be produced in space either by collisions of high-energy cosmic rays with the interstellar medium or from the annihilation of dark matter particles stemming into standard model particles. High-energy hadronic collisions at…

High Energy Physics - Experiment · Physics 2023-11-07 Chiara Pinto

Light antinuclei, like antideuteron and antihelium-3, are ideal probes for new, exotic physics because their astrophysical backgrounds are suppressed at low energies. In order to exploit fully the inherent discovery potential of light…

High Energy Physics - Phenomenology · Physics 2023-03-22 M. Kachelriess , S. Ostapchenko , J. Tjemsland

Antinuclei are considered to be one of the most promising probes in the indirect search for dark matter (DM) annihilation in space. However, in light of recent results on the production of light antinuclei in pp collisions at the LHC, an…

Nuclear Experiment · Physics 2021-04-29 Sebastian Hornung

Antideuteron and antihelium nuclei have been proposed as a detection channel for dark matter annihilations and decays in the Milky Way, due to the low astrophysical background expected. To estimate both the signal for various dark matter…

High Energy Physics - Phenomenology · Physics 2020-01-15 M. Kachelriess , S. Ostapchenko , J. Tjemsland

In our Galaxy, light antinuclei composed of antiprotons and antineutrons can be produced through high-energy cosmic-ray collisions with the interstellar medium or could also originate from the annihilation of dark-matter particles that have…

Nuclear Experiment · Physics 2022-12-19 ALICE Collaboration

The measurement of (anti)nuclei production in pp, p-A and A-A collisions at ultrarelativistic energies is important to understand hadronization. The excellent tracking and particle identification capabilities of ALICE make it the most…

Nuclear Experiment · Physics 2020-10-07 Chiara Pinto

We review progress in the study of antinuclei, starting from Dirac's equation and the discovery of the positron in cosmic-ray events. The development of proton accelerators led to the discovery of antiprotons, followed by the first…

Nuclear Experiment · Physics 2018-11-05 Jinhui Chen , Declan Keane , Yugang Ma , Aihong Tang , Zhangbu Xu

In this article, we present a brief review of the discoveries of kinds of antimatter particles, including positron, antiproton, antideuteron and antihelium-3. Special emphasis is put on the discovery of the antihypertriton and antihelium-4…

Nuclear Experiment · Physics 2013-01-22 Y. G. Ma , J. H. Chen , L. Xue

The fluxes of light antinuclei A<=4 induced near earth by Cosmic Ray intera ctions with the interstellar matter in the Galaxy and with the Earth atmosphere, are calculated in a phenomenological framework. The hadronic production cross…

Astrophysics · Physics 2009-11-10 R. Duperray , B. Baret , D. Maurin , G. Boudoul , A. Barrau , L. Derome , K. Protasov , M. Buenerd

The production mechanism of (anti)nuclei in ultrarelativistic hadronic collisions is under intense debate in the scientific community. The description of the experimental measurements is currently based on two competing phenomenological…

Nuclear Experiment · Physics 2022-09-20 Chiara Pinto

We suggest to use the intranuclear cascade model (INC) for simulation of antideutron-nucleus inelastic interaction in the region of antideutron energies of $100$ MeV/n $\le T_{kin}\le 25-30$ GeV/n for a wide range of target nuclei. With the…

High Energy Physics - Phenomenology · Physics 2025-04-30 E. S. Golubeva

Light antinucleus yields are calculated in a multiphase transport model (AMPT) coupled with a dynamical coalescence model. The model is tuned to reproduce the transverse momentum and rapidity distributions of antiproton in $pp$ collisions…

High Energy Physics - Phenomenology · Physics 2022-06-22 Tianhao Shao , Jinhui Chen , Yu-Gang Ma , Zhangbu Xu

The study of the cosmic-ray deuteron and antideuteron flux receives an increasing interest in current astrophysics investigations. For both cases an important contribution is expected from the nuclear interactions of primary cosmic rays…

High Energy Astrophysical Phenomena · Physics 2018-07-26 Diego-Mauricio Gomez-Coral , Arturo Menchaca Rocha , Varlen Grabski , Amaresh Datta , Philip von Doetinchem , Anirvan Shukla

The discovery of a single anti-helium nucleus in the cosmic ray flux would definitely point toward the existence of stars and even of entire galaxies made of anti-matter. The presence of anti-nuclei in cosmic rays has actually profound…

Astrophysics · Physics 2010-11-30 Pascal Chardonnet , Jean Orloff , Pierre Salati

NEUT is a neutrino-nucleus interaction simulation. It can be used to simulate interactions for neutrinos with between 100 MeV and a few TeV of energy. NEUT is also capable of simulating hadron interactions within a nucleus and is used to…

High Energy Physics - Phenomenology · Physics 2021-10-27 Yoshinari Hayato , Luke Pickering

High-energy nuclear collisions create an energy density similar to that of the universe microseconds after the Big Bang, and in both cases, matter and antimatter are formed with comparable abundance. However, the relatively short-lived…

Nuclear Experiment · Physics 2015-03-19 STAR Collaboration

Quantum Monte Carlo methods have proved very valuable to study the structure and reactions of light nuclei and nucleonic matter starting from realistic nuclear interactions and currents. These ab-initio calculations reproduce many low-lying…

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