J 2017

Search for 2p decay of the first excited state of Ne-17

SHAROV, P. G.; Andrey S. FOMICHEV; A. A. BEZBAKH; Vratislav CHUDOBA; Irina A. EGOROVA et. al.

Basic information

Original name

Search for 2p decay of the first excited state of Ne-17

Authors

SHAROV, P. G. (643 Russian Federation); Andrey S. FOMICHEV (643 Russian Federation); A. A. BEZBAKH (643 Russian Federation); Vratislav CHUDOBA (203 Czech Republic, guarantor, belonging to the institution); Irina A. EGOROVA (643 Russian Federation); M. S. GOLOVKOV (643 Russian Federation); T. A. GOLUBKOVA (643 Russian Federation); Alexander V. GORSHKOV (643 Russian Federation); Leonid V. GRIGORENKO (643 Russian Federation); G. KAMIŃSKI (616 Poland); A. G. KNYAZEV (643 Russian Federation); S. A. KRUPKO (643 Russian Federation); M. MENTEL (616 Poland); E. Yu NIKOLSKII (643 Russian Federation); Yu L. PARFENÔVA (643 Russian Federation); P. PLUCHINSKI (616 Poland); S. A. RYMZHANOVA (643 Russian Federation); S. I. SIDORCHUK (643 Russian Federation); R. S. SLEPNEV (643 Russian Federation); S. V. STEPANTSOV (643 Russian Federation); Gurgen M. TER-AKOPIAN (643 Russian Federation) and Roman WOLSKI (643 Russian Federation)

Edition

Physical Review C, 2017, 2469-9985

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10304 Nuclear physics

Country of publisher

United States of America

Confidentiality degree

is not subject to a state or trade secret

References:

RIV identification code

RIV/47813059:19240/17:A0000055

Organization

Filozoficko-přírodovědecká fakulta – Slezská univerzita v Opavě – Repository

DOI

UT WoS

000408513000007

EID Scopus

2-s2.0-85028699857

Keywords in English

two-proton decay; nucleus; Ne-17

Tags

Tags

International impact, Reviewed
Changed: 9/4/2018 21:49, Jan Hladík

Abstract

V originále

Two-proton decay of the Ne-17 low-lying states populated in the H-1(Ne-18, d) Ne-17 transfer reaction is studied. The two-proton width Gamma(2p) of the Ne-17 first excited 3/2^(-) state at E* = 1.288 MeV is of importance for the two-proton radioactivity theory and nuclear-astrophysics applications. A dedicated search for the two-proton emission of this state was performed leading to the new upper limit obtained for the width ratio Gamma_(2p)/Gamma_(gamma). < 1.6(3) x 10^(-4). An original, "combined mass" method is suggested and tested as capable of improving the resolution of the experiment, which is a prime significance for the study of nuclear states with extremely small particle-to-gamma width ratios Gamma_(part)/Gamma_(gamma). The condition Gamma_(part) << Gamma_(gamma) quite common for the states of astrophysical interest, which makes the proposed approach promising in this field.