High-sensitivity study of levels in Al-30 following beta decay of Mg-30

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F16%3A00468238" target="_blank" >RIV/61389005:_____/16:00468238 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevC.94.054318" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.94.054318</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.94.054318" target="_blank" >10.1103/PhysRevC.94.054318</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High-sensitivity study of levels in Al-30 following beta decay of Mg-30

Popis výsledku v původním jazyce

gamma-ray and fast-timing spectroscopy were used to study levels in Al-30 populated following the beta(-) decay of Mg-30. Five new transitions and three new levels were located in Al-30. A search was made to identify the third 1(+) state expected at an excitation energy of similar to 2.5 MeV. Two new levels were found, at 3163.9 and 3362.5 keV, that are firm candidates for this state. Using the advanced time-delayed (ATD) beta gamma gamma (t) method we have measured the lifetime of the 243.8-keV state to be T-1/2 = 15(4) ps, which implies that the 243.8-keV transition is mainly of M1 character. Its fast B(M1; 2(+) -> 3(+)) value of 0.10(3) W is in very good agreement with the USD shell-model prediction of 0.090 W The 1801.5-keV level is the only level observed in this study that could be a candidate for the second excited 2(+) state.

Název v anglickém jazyce

High-sensitivity study of levels in Al-30 following beta decay of Mg-30

Popis výsledku anglicky

gamma-ray and fast-timing spectroscopy were used to study levels in Al-30 populated following the beta(-) decay of Mg-30. Five new transitions and three new levels were located in Al-30. A search was made to identify the third 1(+) state expected at an excitation energy of similar to 2.5 MeV. Two new levels were found, at 3163.9 and 3362.5 keV, that are firm candidates for this state. Using the advanced time-delayed (ATD) beta gamma gamma (t) method we have measured the lifetime of the 243.8-keV state to be T-1/2 = 15(4) ps, which implies that the 243.8-keV transition is mainly of M1 character. Its fast B(M1; 2(+) -> 3(+)) value of 0.10(3) W is in very good agreement with the USD shell-model prediction of 0.090 W The 1801.5-keV level is the only level observed in this study that could be a candidate for the second excited 2(+) state.

Druh

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

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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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

2469-9985

e-ISSN

—

Svazek periodika

94

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

—

Kód UT WoS článku

000388467600001

EID výsledku v databázi Scopus

2-s2.0-84996619218