Search for a common baryon source in high-multiplicity pp collisions at the LHC

Acharya, S.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ...; Lončar, Petra; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Simatović, Goran; ...; Vicković, Linda; ...; Zurlo, N.

doi:10.1016/j.physletb.2020.135849

Pregled bibliografske jedinice broj: 1097886

Search for a common baryon source in high-multiplicity pp collisions at the LHC

(ALICE Collaboration) Acharya, S.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ... et al.

Search for a common baryon source in high-multiplicity pp collisions at the LHC // Physics letters. B, 811 (2020), 135849, 13 doi:10.1016/j.physletb.2020.135849 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 1097886 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Search for a common baryon source in high-multiplicity pp collisions at the LHC

Autori
Acharya, S. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Jerčić, Marko ; ... ; Lončar, Petra ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Simatović, Goran ; ... ; Vicković, Linda ; ... ; Zurlo, N.

Kolaboracija
ALICE Collaboration

Izvornik
Physics letters. B (0370-2693) 811 (2020); 135849, 13

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
baryon correlations ; invariant radius ; strong hadron–hadron interactions ; strong resonance decay

Sažetak
We report on the measurement of the size of the particle-emitting source from two-baryon correlations with ALICE in high-multiplicity pp collisions at √sNN = 13 TeV. The source radius is studied with low relative momentum p–p, antiproton-antiproton, p–Λ , and antiproton- anti-Λ pairs as a function of the pair transverse mass considering for the first time in a quantitative way the effect of strong resonance decays. After correcting for this effect, the radii extracted for pairs of different particle species agree. This indicates that protons, antiprotons, Λs, and anti-Λs originate from the same source. Within the measured range (1.1–2.2) GeV the invariant radius of this common source varies between 1.3 and 0.85 fm. These results provide a precise reference for studies of the strong hadron– hadron interactions and for the investigation of collective properties in small colliding systems.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA

Projekti:
HRZZ-IP-2018-01-4108 - Demistificiranje dvočestičnih korelacija u pp sudarima s nadograđenom komorom vremenske projekcije (TPCwithTPC) (Planinić, Mirko, HRZZ - 2018-01) ( CroRIS)

Ustanove:
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Filip Erhardt (autor)