Lambda*(1405)-matter: Stable or unstable?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00496796" target="_blank" >RIV/61389005:_____/18:00496796 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/18:00328140
Result on the web
<a href="http://dx.doi.org/10.1016/j.physletb.2018.08.031" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2018.08.031</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2018.08.031" target="_blank" >10.1016/j.physletb.2018.08.031</a>
Alternative languages
Result language
angličtina
Original language name
Lambda*(1405)-matter: Stable or unstable?
Original language description
A recent suggestion by Akaishi and Yamazaki (2017) [3] that purely-Lambda*(1405) nuclei provide the absolute minimum energy in charge-neutral baryon matter for baryon-number A greater than or similar to 8, is tested within RMF calculations. Abroad range of Lambda* interaction strengths, commensurate with ((K) over bar(K) over bar NN)(I=0) binding energy assumed to be of order 100 MeV, is scanned. It is found that the binding energy per Lambda*, B/A, saturates for A greater than or similar to 120 with values of B/A considerably below 100 MeV, implying that Lambda*(1405) matter is highly unstable against strong decay to Lambda and Sigma hyperon aggregates. The central density of Lambda* matter is found to saturate as well, at roughly twice nuclear matter density. Moreover, it is shown that the underlying very strong (K) over barN potentials, fitted for isospin I = 0 to the mass and width values of Lambda*(1405), fail to reproduce values of single-nucleon absorption fractions deduced across the periodic table from K- capture-at-rest bubble chamber experiments.
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
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physics Letters. B
ISSN
0370-2693
e-ISSN
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Volume of the periodical
785
Issue of the periodical within the volume
10
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
5
Pages from-to
90-94
UT code for WoS article
000447424000012
EID of the result in the Scopus database
2-s2.0-85052289065