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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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