eta-nuclear bound states revisited

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F13%3A00397830" target="_blank" >RIV/61389005:_____/13:00397830 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.physletb.2013.07.035" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2013.07.035</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2013.07.035" target="_blank" >10.1016/j.physletb.2013.07.035</a>

Jazyk výsledku

angličtina

Název v původním jazyce

eta-nuclear bound states revisited

Popis výsledku v původním jazyce

he strong energy dependence of the s-wave eta N scattering amplitude at and below threshold, as evident in coupled-channels K-matrix fits and chiral models that incorporate the S-11 N*(1535) resonance, is included self-consistently in eta-nuclear bound-state calculations. This approach, applied recently in calculations of kaonic atoms and (K) over bar -nuclear bound states, is found to impose stronger constraints than ever on the onset of eta-nuclear binding, with a minimum value of Rea(eta N) approximate to 0.9 fm required to accommodate an eta-He-4 bound state. Binding energies and widths of eta-nuclear states are calculated within several underlying eta N models for nuclei across the periodic table, including Mg-25(eta) for which some evidence was proposed in a recent COSY experiment.

Název v anglickém jazyce

eta-nuclear bound states revisited

Popis výsledku anglicky

he strong energy dependence of the s-wave eta N scattering amplitude at and below threshold, as evident in coupled-channels K-matrix fits and chiral models that incorporate the S-11 N*(1535) resonance, is included self-consistently in eta-nuclear bound-state calculations. This approach, applied recently in calculations of kaonic atoms and (K) over bar -nuclear bound states, is found to impose stronger constraints than ever on the onset of eta-nuclear binding, with a minimum value of Rea(eta N) approximate to 0.9 fm required to accommodate an eta-He-4 bound state. Binding energies and widths of eta-nuclear states are calculated within several underlying eta N models for nuclei across the periodic table, including Mg-25(eta) for which some evidence was proposed in a recent COSY experiment.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BE - Teoretická fyzika

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP203%2F12%2F2126" target="_blank" >GAP203/12/2126: Mikroskopické modely pro popis hadronových systémů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Physics Letters. B

ISSN

0370-2693

e-ISSN

—

Svazek periodika

725

Číslo periodika v rámci svazku

4-5

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

334-338

Kód UT WoS článku

000324223100021

EID výsledku v databázi Scopus

—