Transverse asymmetry of $\gamma$ rays from neutron-induced compound states of ${}^{140}\mathrm{La}$

Abstract

A correlation term ${\sigma }_n\cdot (k_n\times k_{\gamma })$ in the ${}^{139}\mathrm{La}(\vec{n},\gamma )$ reaction has been studied utilizing epithermal polarized neutrons and germanium detectors. The transverse asymmetry for single $\gamma$-ray transition was measured to be $0.60\pm 0.19$ in the $p$-wave resonance.

References in corpus (4)

• Angular Distribution of $\gamma$-rays from Neutron-Induced Compound States of ${}^{140}$La
• On the Search for Time Reversal Invariance Violation in Neutron Transmission
• The 139La(n,gamma) cross section: key for the onset of the s process
• Characterization of Germanium Detectors for the Measurement of the Angular Distribution of Prompt gamma-rays at the ANNRI in the MLF of the J-PARC

Cited by in corpus (9)

• Development and application of a ${}^3$He Neutron Spin Filter at J-PARC
• Measurement of the transverse asymmetry of $\gamma$-rays in the ${}^{117}$Sn(n,$\gamma$)${}^{118}$Sn reaction
• Energy dependent angular distribution of individual $\gamma$-rays in the ${}^{139}$La($n$, $\gamma$)${}^{140}$La* reaction
• Angular distribution of $\gamma$ rays from the p-wave resonance of ${}^{118}$Sn
• Angular distribution of $\gamma$-rays from a neutron-induced $p$-wave resonance of ${}^{132}$Xe
• High sensitivity of a future search for P-odd/T-odd interactions on the 0.75 eV $p$-wave resonance in $\vec{n}{+}^{139}\overrightarrow{\mathrm{La}}$ forward transmission determined using pulsed neutron beam
• First Use of a Polarized ${}^3$He Neutron Spin Filter on the Back-n White Neutron Source of CSNS
• Measurements of neutron total and capture cross sections of ${}^{139}$La and evaluation of resonance parameters
• Measurement of nuclear spin relaxation time in lanthanum aluminate for development of polarized lanthanum target