Parity non-conservation in the γ-decay of polarized 17/2- isomers in 93Tc

B. S. Nara Singh; M. Hass; G. Goldring; D. Ackermann; J. Gerl; F. P. Hessberger; S. Hofmann; I. Kojouharov; P. Kuusiniemi; H. Schaffner; B. Sulignano; B. A. Brown

doi:10.1140/epjad/i2005-06-073-5

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2022 Impact factor 2.7

Hadrons and Nuclei

Open Access

Eur. Phys. J. A (2005) 25: 703-704
https://doi.org/10.1140/epjad/i2005-06-073-5

ENAM 2004

Parity non-conservation in the γ-decay of polarized 17/2^- isomers in ⁹³Tc

B. S. Nara Singh¹^*, M. Hass¹, G. Goldring¹, D. Ackermann²^,3, J. Gerl², F. P. Hessberger², S. Hofmann², I. Kojouharov², P. Kuusiniemi², H. Schaffner², B. Sulignano²^,3 and B. A. Brown⁴

¹ Department of Particle Physics, Weizmann Institute of Science, Rehovot, Israel
² GSI, Darmstadt, Germany
³ Johannes Gutenberg-Universität Mainz, Mainz, Germany
⁴ NSCL, East Lansing, MI, USA

^* e-mail: bondili@wicc.weizmann.ac.il

Received: 29 October 2004
Accepted: 18 February 2005
Published online: 3 May 2005

Abstract

The determination of the 0^°- 180^° asymmetry (A _γ), which arises due to the parity violating matrix element, in the 751keV γ-decay of polarized 17/2^- isomers in ⁹³Tc with respect to the direction of polarization is reported. A combined analysis of the present results together with those of M. Hass et al.(Phys. Lett. B 371, 25 (1996)) yields A _γ = 4.8(2.1)×10^-4.

PACS: 21.10.Ky Electromagnetic moments – / 21.10.Pc Single-particle levels and strength functions – / 23.40.Hc Relation with nuclear matrix elements and nuclear structure –

© Società Italiana di Fisica and Springer-Verlag, 2005