Počet záznamů: 1
Measurement of anti-.sup.3./sup.He nuclei absorption in matter and impact on their propagation in the Galaxy
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SYSNO ASEP 0574104 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Measurement of anti-3He nuclei absorption in matter and impact on their propagation in the Galaxy Tvůrce(i) Acharya, S. (IN)
Adamová, Dagmar (UJF-V) RID, ORCID, SAI
Adler, A. (DE)
Adolfsson, J. (SE)
Bielčík, J. (CZ)
Bielčíková, Jana (UJF-V) RID, ORCID, SAI
Broz, M. (CZ)
Contreras, J. G. (CZ)
Fialová, V. (CZ)
Grund, D. (CZ)
Herman, T. (CZ)
Horák, D. (CZ)
Isakov, Artem (UJF-V) ORCID, SAI
Kotliarov, Artem (UJF-V) ORCID, SAI
Krupová, D. M. (CZ)
Křížek, Filip (UJF-V) RID, ORCID, SAI
Křížková Gajdošová, K. (CZ)
Kushpil, Svetlana (UJF-V) RID, ORCID, SAI
Lavička, R. (CZ)
Petráček, V. (CZ)
Šafařík, K. (CZ)
Torres, S. R. (CZ)
Závada, Petr (FZU-D) RID, ORCIDCelkový počet autorů 1023 Zdroj.dok. Nature Physics. - : Nature Publishing Group - ISSN 1745-2473
Roč. 19, č. 1 (2023), s. 61-71Poč.str. 16 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova ALICE collaboration ; light antinuclei ; cross section Obor OECD Nuclear physics Výzkumná infrastruktura CERN-CZ III - 90240 - Fyzikální ústav AV ČR, v. v. i.
CERN-CZ II - 90104 - Fyzikální ústav AV ČR, v. v. i.Způsob publikování Open access Institucionální podpora UJF-V - RVO:61389005 ; FZU-D - RVO:68378271 UT WOS 001031009800007 EID SCOPUS 85143911914 DOI 10.1038/s41567-022-01804-8 Anotace 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 not yet been discovered. On Earth, the only way to produce and study antinuclei with high precision is to create them at high-energy particle accelerators. Although the properties of elementary antiparticles have been studied in detail, the knowledge of the interaction of light antinuclei with matter is limited. We determine the disappearance probability of (3)(He) over bar when it encounters matter particles and annihilates or disintegrates within the ALICE detector at the Large Hadron Collider. We extract the inelastic interaction cross section, which is then used as an input to the calculations of the transparency of our Galaxy to the propagation of (3)(He) over bar stemming from dark-matter annihilation and cosmic-ray interactions within the interstellar medium. For a specific dark-matter profile, we estimate a transparency of about 50%, whereas it varies with increasing (3)(He) over bar momentum from 25% to 90% for cosmic-ray sources. The results indicate that (3)(He) over bar nuclei can travel long distances in the Galaxy, and can be used to study cosmic-ray interactions and dark-matter annihilation. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2024 Elektronická adresa https://doi.org/10.1038/s41567-022-01804-8
Počet záznamů: 1