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On the stability of Λ(1405) matter

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00338404" target="_blank" >RIV/68407700:21340/19:00338404 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1063/1.5118413" target="_blank" >https://doi.org/10.1063/1.5118413</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1063/1.5118413" target="_blank" >10.1063/1.5118413</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    On the stability of Λ(1405) matter

  • Original language description

    A hypothesis of absolutely stable strange hadronic matter composed of Λ(1405) baryons, here denoted Λ*, is tested within many-body calculations performed using the Relativistic Mean-Field approach. In our calculations, we employed the Λ*Λ* interaction compatible with the Λ*Λ* binding energy BΛ*Λ* = 40 MeV given by the phenomenological energy-independent K N interaction model by Yamazaki and Akaishi (YA). We found that the binding energy per Λ*, as well as the central density in Λ* many-body systems saturates for mass number A >= 120, leaving Λ* aggregates highly unstable against strong interaction decay. Moreover, we confronted the YA interaction model with kaonic atom data and found that it fails to reproduce the K- single-nucleon absorption fractions at rest from bubble chamber experiments.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    AIP Conference Proceedings

  • ISBN

    9780735418721

  • ISSN

    0094-243X

  • e-ISSN

  • Number of pages

    6

  • Pages from-to

  • Publisher name

    American Institute of Physics

  • Place of publication

    Melville, New York

  • Event location

    Portsmouth

  • Event date

    Jun 24, 2018

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article