Neutron Resonances of Tellurium

Parity nonconservation for neutron resonances in 238U.

Parity nonconservation (PNC) was studied for 24 p-wave neutron resonances in 238U from 10 to 300 eV by measuring the helicity dependence of the total neutron cross section with an improved experimental apparatus. Six resonances show statistically significant (greater than 2.9σ) parity violation. An analysis treating the PNC matrix elements as random variables yields a root-mean-square PNC matri...

Parity nonconservation for neutron resonances in 232Th.

Parity nonconservation (PNC) was measured for 24 p-wave resonances from 8 to 300 eV in 232Th by measuring the helicity dependence of the total neutron cross section for epithermal neutrons with an improved experimental system. Ten resonances show statistically significant parity violation. For these ten resonances the analyzing powers are all positive, thus confirming the previously observed si...

Neutron Skin and Giant Resonances in Nuclei

Some aspects, both experimental and theoretical, of extracting the neutron skin ∆R from properties of isovector giant resonances are discussed. Existing proposals are critically reviewed. The method relying on the energy difference between the GTR and IAS is shown to lack sensitivity to ∆R. A simple explanation of the linear relation between the symmetry energy and the neutron skin is also pres...

Tellurium and tellurium compounds

New measurement of neutron capture resonances in 209Bi

C. Domingo-Pardo,1,∗ U. Abbondanno,2 G. Aerts,3 H. Álvarez-Pol,4 F. Alvarez-Velarde,5 S. Andriamonje,3 J. Andrzejewski,6 P. Assimakopoulos,7 L. Audouin,8 G. Badurek,9 P. Baumann,10 F. Bečvář,11 E. Berthoumieux,3 F. Calviño,12 D. Cano-Ott,5 R. Capote,13,14 A. Carrillo de Albornoz,15 P. Cennini,16 V. Chepel,17 E. Chiaveri,16 N. Colonna,18 G. Cortes,12 A. Couture,19 J. Cox,19 M. Dahlfors,16 S. Dav...