TY  - JOUR
A1  - Beller, Jacob
A1  - Stumpf, Christina
A1  - Scheck, Marcus
A1  - Pietralla, Norbert
A1  - Deleanu, Daniela
A1  - Filipescu, Dan M.
A1  - Glodariu, Tudor
A1  - Haxton, Wick C.
A1  - Idini, Andrea
A1  - Kelley, John H.
A1  - Kwan, Elaine
A1  - Martínez Pinedo, Gabriel
A1  - Raut, Rajarshi
A1  - Romig, Christopher
A1  - Roth, Robert
A1  - Rusev, Gencho
A1  - Savran, Deniz
A1  - Tonchev, Anton P.
A1  - Tornow, Werner
A1  - Wagner, Jan
A1  - Weller, Henry R.
A1  - Zamfir, Nicolae-Victor
A1  - Zweidinger, Markus
T1  - Separation of the 1+/1− parity doublet in 20Ne
T2  - Physics Letters B
N2  - The ( J, T ) = (1, 1) parity doublet in 20Ne at 11.26 MeV is a good candidate to study parity violation in nuclei. However, its energy splitting is known with insufficient accuracy for quantitative estimates of parity violating effects. To improve on this unsatisfactory situation, nuclear resonance fluorescence experiments using linearly and circularly polarized γ -ray beams were used to determine the energy difference of the parity doublet E = E(1−) − E(1+) = −3.2(±0.7)stat( +0.6 −1.2)sys keV and the ratio of their integrated cross sections I (+) s,0 /I (−) s,0 = 29(±3)stat( +14 −7 )sys. Shell-model calculations predict a parityviolating matrix element having a value in the range 0.46–0.83 eV for the parity doublet. The small energy difference of the parity doublet makes 20Ne an excellent candidate to study parity violation in nuclear excitations.
Y1  - 2014
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54663
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-546630
SN  - 1873-2445
SN  - 0370-2693
VL  - 741.2015
SP  - 128
EP  - 133
PB  - Elsevier
CY  - Amsterdam
ER  -