Unveiling the strong interaction among hadrons at the LHC

Acharya, S.; Adamová, Dagmar; Bielčík, J.; Bielčíková, Jana; Broz, M.; Contreras, J. G.; Herman, T.; Horák, D.; Isakov, Artem; Křížek, Filip; Křížková Gajdošová, K.; Kushpil, Svetlana; Lavička, R.; Mareš, Jiří A.; Petráček, V.; Šafařík, K.; Šumbera, Michal; Torres, S. R.; Trzeciak, B. A.; Závada, Petr

doi:https://dx.doi.org/10.1038/s41586-020-3001-6

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Unveiling the strong interaction among hadrons at the LHC

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SYSNO ASEP	0538794
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Unveiling the strong interaction among hadrons 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. (CZ) 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, ORCID}
Number of authors	1024
Source Title	Nature. - : Palgrave Macmillan - ISSN 0028-0836 Roč. 588, č. 7837 (2020), s. 232-238
Number of pages	9 s.
Publication form	Print - P
Language	eng - English
Country	GB - United Kingdom
Keywords	ALICE collaboration ; proton proton collisions
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	000618628100001
EID SCOPUS	85097335214
DOI	10.1038/s41586-020-3001-6
Annotation	One of the key challenges for nuclear physics today is to understand from first principles the effective interaction between hadrons with different quark content. First successes have been achieved using techniques that solve the dynamics of quarks and gluons on discrete space-time lattices. Experimentally, the dynamics of the strong interaction have been studied by scattering hadrons off each other. Such scattering experiments are difficult or impossible for unstable hadrons and so high-quality measurements exist only for hadrons containing up and down quarks. Here we demonstrate that measuring correlations in the momentum space between hadron pairs produced in ultrarelativistic proton–proton collisions at the CERN Large Hadron Collider (LHC) provides a precise method with which to obtain the missing information on the interaction dynamics between any pair of unstable hadrons. Specifically, we discuss the case of the interaction of baryons containing strange quarks (hyperons). We demonstrate how, using precision measurements of proton–omega baryon correlations, the effect of the strong interaction for this hadron–hadron pair can be studied with precision similar to, and compared with, predictions from lattice calculations. The large number of hyperons identified in proton–proton collisions at the LHC, together with accurate modelling of the small (approximately one femtometre) inter-particle distance and exact predictions for the correlation functions, enables a detailed determination of the short-range part of the nucleon-hyperon interaction.
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2021
Electronic address	https://doi.org/10.1038/s41586-020-03142-2

Number of the records: 1