Direct Observation of Competing M1 and M3 Transitions in B 10

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F24%3A00377948" target="_blank" >RIV/68407700:21670/24:00377948 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevLett.133.072502" target="_blank" >https://doi.org/10.1103/PhysRevLett.133.072502</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.133.072502" target="_blank" >10.1103/PhysRevLett.133.072502</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Direct Observation of Competing M1 and M3 Transitions in B 10

Popis výsledku v původním jazyce

Excited states in 10B were populated with the 10Bðp; p0γÞ10B reaction at 8.5 MeV and their γ decay was investigated via coincidence γ-ray spectroscopy. The emitted γ rays were measured using large-volume LaBr3:Ce and CeBr3 detectors placed in anti-Compton shields. This allowed the observation of weak γ-ray transitions, such as the M3 transition between the Jπ ; T 1/4 0þ; 1 isobaric analog state (IAS) and the Jπ ; T 1/4 3þ; 0 ground state and the E2 transition between the Jπ ; T 1/4 2þ 1 ; 0 state and the IAS, i.e., performing measurements of branching ratios at the level of λ >= 10-4. For the first time in 10B, the competing M1 and M3 transitions from the decay of the IAS have been observed in a γ spectroscopy experiment. The experimental results are compared with ab initio no-core shell model calculation using the newest version of the local position-space chiral N3LO nucleon-nucleon interaction. The calculations reproduce correctly the ordering of the bound states in 10B, and are in reasonable agreement with the observed branching ratios and reduced transition probabilities.

Název v anglickém jazyce

Direct Observation of Competing M1 and M3 Transitions in B 10

Popis výsledku anglicky

Excited states in 10B were populated with the 10Bðp; p0γÞ10B reaction at 8.5 MeV and their γ decay was investigated via coincidence γ-ray spectroscopy. The emitted γ rays were measured using large-volume LaBr3:Ce and CeBr3 detectors placed in anti-Compton shields. This allowed the observation of weak γ-ray transitions, such as the M3 transition between the Jπ ; T 1/4 0þ; 1 isobaric analog state (IAS) and the Jπ ; T 1/4 3þ; 0 ground state and the E2 transition between the Jπ ; T 1/4 2þ 1 ; 0 state and the IAS, i.e., performing measurements of branching ratios at the level of λ >= 10-4. For the first time in 10B, the competing M1 and M3 transitions from the decay of the IAS have been observed in a γ spectroscopy experiment. The experimental results are compared with ab initio no-core shell model calculation using the newest version of the local position-space chiral N3LO nucleon-nucleon interaction. The calculations reproduce correctly the ordering of the bound states in 10B, and are in reasonable agreement with the observed branching ratios and reduced transition probabilities.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

1079-7114

Svazek periodika

133

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

"072502-1"-"072502-7"

Kód UT WoS článku

001308049400008

EID výsledku v databázi Scopus

2-s2.0-85201307690