Comment on "Transverse Wobbling in $^{135}$Pr [Phys. Rev. Lett. 114, 082501 (2015)]"

TL;DR

This paper critically examines the experimental evidence for transverse wobbling in $^{135}$Pr, questioning the dominance of E2 transitions and the wobbling assignment's validity based on existing data.

Contribution

It provides a detailed analysis of the experimental data, highlighting uncertainties in the wobbling interpretation and suggesting the need for further clarification.

Findings

E2 transition dominance is not conclusively established

M1 character cannot be ruled out from existing data

The wobbling assignment remains uncertain

Abstract

In [J. T. Matta et al., Phys. Rev. Lett. 114, 082501 (2015)] a transverse wobbling band was reported in $^{135}$Pr. The critical experimental proof for this assignment is the E2 dominated linking transitions between the wobbling and normal bands, which are supported by two experiments performed with Gammasphere and INGA. However, the M1 dominated character cannot be excluded based on the reported experimental information, indicating that the wobbling assignment is still questionable.