Towards the understanding of the genuine three-body interaction for p-p-p and p-p-Λ
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00575286" target="_blank" >RIV/61389005:_____/23:00575286 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/23:00575286
Result on the web
<a href="https://doi.org/10.1140/epja/s10050-023-00998-6" target="_blank" >https://doi.org/10.1140/epja/s10050-023-00998-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epja/s10050-023-00998-6" target="_blank" >10.1140/epja/s10050-023-00998-6</a>
Alternative languages
Result language
angličtina
Original language name
Towards the understanding of the genuine three-body interaction for p-p-p and p-p-Λ
Original language description
Three-body nuclear forces play an important role in the structure of nuclei and hypernuclei and are also incorporated in models to describe the dynamics of dense baryonic matter, such as in neutron stars. So far, only indirect measurements anchored to the binding energies of nuclei can be used to constrain the three-nucleon force, and if hyperons are considered, the scarce data on hypernuclei impose only weak constraints on the three-body forces. In this work, we present the first direct measurement of the p-p-p and p-p-Lambda systems in terms of three-particle correlation functions carried out for pp collisions at root s = 13 TeV. Three-particle cumulants are extracted from the correlation functions by applying the Kubo formalism, where the three-particle interaction contribution to these correlations can be isolated after subtracting the known two-body interaction terms. A negative cumulant is found for the p-p-p system, hinting to the presence of a residual three-body effect while for p-p-Lambda the cumulant is consistent with zero. This measurement demonstrates the accessibility of three-baryon correlations at the LHC.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal A
ISSN
1434-6001
e-ISSN
1434-601X
Volume of the periodical
59
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
22
Pages from-to
145
UT code for WoS article
001045131800001
EID of the result in the Scopus database
2-s2.0-85165704330