Excited s-wave 1−− vector mesons, their leptonic decays and (in-)complete absence of abnormal states as seen from the constituent quark BSE
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F25%3A00635894" target="_blank" >RIV/61389005:_____/25:00635894 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0375947425001307" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0375947425001307</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nuclphysa.2025.123144" target="_blank" >10.1016/j.nuclphysa.2025.123144</a>
Alternative languages
Result language
angličtina
Original language name
Excited s-wave 1−− vector mesons, their leptonic decays and (in-)complete absence of abnormal states as seen from the constituent quark BSE
Original language description
Within a lattice inspired interaction between quark and antiquark, we obtain a hierarchy of solutions to the Bethe-Salpeter equation (BSE) for vector quarkonia excited states in the constituent quark mass approximation. As a toy model, we apply the similar to calculate ground and excited states of ϕ and w/p meson. Through detailed numerical searches, our study provides evidence that the single-valued constant mass quark propagator does not yield known meson spectra without the simultaneous presence of abnormal (unphysical) solutions. We classify normal and abnormal solutions and discuss necessary changes in the calculation scheme to avoid the spectrum of inconsistent solutions. While all experimental narrow vector mesons are identified with a normal state of the BSE, the occurrence of mutually cancelled normal-abnormal states are reported. The results are slightly different for the heavy and light mesons, but in both cases they seem to result from the inconsistent use of the homogeneous BSE to describe broad resonances.
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
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Physics. A
ISSN
0375-9474
e-ISSN
1873-1554
Volume of the periodical
1062
Issue of the periodical within the volume
October
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
123144
UT code for WoS article
001492846200002
EID of the result in the Scopus database
2-s2.0-105004899504