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Search for a common baryon source in high-multiplicity pp collisions at the LHC
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SYSNO ASEP 0538793 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Search for a common baryon source in high-multiplicity pp collisions at the LHC Author(s) Acharya, S. (IN)
Adamová, Dagmar (UJF-V) RID, ORCID, SAI
Bielčík, J. (CZ)
Bielčíková, Jana (UJF-V) RID, ORCID, SAI
Broz, M. (CZ)
Contreras, J. G. (MX)
Herman, T. (CZ)
Horák, D. (CZ)
Isakov, Artem (UJF-V) ORCID, SAI
Křížek, Filip (UJF-V) RID, ORCID, SAI
Křížková Gajdošová, K. (CZ)
Kushpil, Svetlana (UJF-V) RID, ORCID, SAI
Lavička, R. (CZ)
Mareš, Jiří A. (FZU-D) RID, ORCID
Petráček, V. (CZ)
Šafařík, K. (CZ)
Šumbera, Michal (UJF-V) RID, ORCID, SAI
Torres, S. R. (CZ)
Trzeciak, B. A. (CZ)
Závada, Petr (FZU-D) RID, ORCIDNumber of authors 1006 Article number 135849 Source Title Physics Letters. B. - : Elsevier - ISSN 0370-2693
Roč. 811, DEC (2020)Number of pages 13 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords ALICE ; heavy ion experiments Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders OECD category Nuclear physics Subject RIV - cooperation Institute of Physics - Elementary Particles and High Energy Physics R&D Projects LTT17018 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2018104 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 ; UJF-V - RVO:61389005 UT WOS 000612225400003 EID SCOPUS 85093678392 DOI 10.1016/j.physletb.2020.135849 Annotation 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 root s=13 TeV. The source radius is studied with low relative momentum pp, p–p, p–Lambda, and -p-Lambda pairs as a function of the pair transverse mass mT 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, Lambda s, and -Labmda s originate from the same source. Within the measured mT range (1.1–2.2) GeV/c2 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. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2021 Electronic address https://doi.org/10.1016/j.physletb.2020.135849
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