On the stability of Lambda(1405) matter

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00509992" target="_blank" >RIV/61389005:_____/19:00509992 - isvavai.cz</a>

Výsledek na webu

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

Jazyk výsledku

angličtina

Název v původním jazyce

On the stability of Lambda(1405) matter

Popis výsledku v původním jazyce

A hypothesis of absolutely stable strange hadronic matter composed of Lambda(1405) baryons, here denoted Lambda(star), is tested within many-body calculations performed using the Relativistic Mean-Field approach. In our calculations, we employed the Lambda(star)Lambda(star) interaction compatible with the Lambda(star)Lambda(star) binding energy Lambda(star)Lambda(star) = 40 MeV given by the phenomenological energy-independent K- N interaction model by Yamazaki and Akaishi (YA). We found that the binding energy per Lambda(star), as well as the central density in Lambda(star) many-body systems saturates for mass number A (inequality) 120, leaving Lambda(star) 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.

Název v anglickém jazyce

On the stability of Lambda(1405) matter

Popis výsledku anglicky

A hypothesis of absolutely stable strange hadronic matter composed of Lambda(1405) baryons, here denoted Lambda(star), is tested within many-body calculations performed using the Relativistic Mean-Field approach. In our calculations, we employed the Lambda(star)Lambda(star) interaction compatible with the Lambda(star)Lambda(star) binding energy Lambda(star)Lambda(star) = 40 MeV given by the phenomenological energy-independent K- N interaction model by Yamazaki and Akaishi (YA). We found that the binding energy per Lambda(star), as well as the central density in Lambda(star) many-body systems saturates for mass number A (inequality) 120, leaving Lambda(star) 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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

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

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings

ISBN

978-0-7354-1872-1

ISSN

0094-243X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

040016

Název nakladatele

American Institute of Physics Inc.

Místo vydání

Melville

Místo konání akce

Portsmouth

Datum konání akce

24. 6. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000557835700045