Coulomb excitation of Ca-44 and Ar-46

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F16%3A00459619" target="_blank" >RIV/61389005:_____/16:00459619 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevC.93.044333" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.93.044333</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.93.044333" target="_blank" >10.1103/PhysRevC.93.044333</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Coulomb excitation of Ca-44 and Ar-46

Popis výsledku v původním jazyce

The reduced transition probabilities B(E2; 0(g.s.)(+) -> 2(1)(+)) of the Ar-46 and Ca-44 nuclei were studied using the Coulomb excitation technique at intermediate energy at the LISE/GANIL facility. The in-flight gamma rays, emitted after the Coulomb excitation of their first 2(+) states, were detected in an array of 64 BaF2 crystals. The present B(E2 up arrow) value for Ca-44, 475(36) e(2)fm(4), agrees well with the value of 495(35) e(2)fm(4) obtained by averaging results of previous experiments. Consistent B(E2; 0(g.s.)(+) -> 2(1)(+)) values of 225(29) e(2)fm(4) and 234(19) e(2)fm(4) have been obtained for Ar-46 from an absolute and a relative measurement, normalized to the Ca-44 value. Both results agree with the ones obtained with the same experimental technique at the NSCL facility but are a factor of 2 smaller than the shell model predictions. The drop in B(E2; 0(g.s.)(+) -> 2(1)(+)) in the Ar chain at N = 28, confirmed in this experiment, shows that Ar-46 is sensitive to the N = 28 shell closure.

Název v anglickém jazyce

Coulomb excitation of Ca-44 and Ar-46

Popis výsledku anglicky

The reduced transition probabilities B(E2; 0(g.s.)(+) -> 2(1)(+)) of the Ar-46 and Ca-44 nuclei were studied using the Coulomb excitation technique at intermediate energy at the LISE/GANIL facility. The in-flight gamma rays, emitted after the Coulomb excitation of their first 2(+) states, were detected in an array of 64 BaF2 crystals. The present B(E2 up arrow) value for Ca-44, 475(36) e(2)fm(4), agrees well with the value of 495(35) e(2)fm(4) obtained by averaging results of previous experiments. Consistent B(E2; 0(g.s.)(+) -> 2(1)(+)) values of 225(29) e(2)fm(4) and 234(19) e(2)fm(4) have been obtained for Ar-46 from an absolute and a relative measurement, normalized to the Ca-44 value. Both results agree with the ones obtained with the same experimental technique at the NSCL facility but are a factor of 2 smaller than the shell model predictions. The drop in B(E2; 0(g.s.)(+) -> 2(1)(+)) in the Ar chain at N = 28, confirmed in this experiment, shows that Ar-46 is sensitive to the N = 28 shell closure.

Druh

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

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Physical Review. C

ISSN

0556-2813

e-ISSN

—

Svazek periodika

93

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000374954100007

EID výsledku v databázi Scopus

2-s2.0-84964699862