Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electron-phonon coupling in the conventional superconductor
  YNi$_2$B$_2$C at high phonon energies studied by time-of-flight neutron
  spectroscopy   We report an inelastic neutron scattering investigation of phonons with
energies up to 159 meV in the conventional superconductor YNi$_2$B$_2$C. Using
the SWEEP mode, a newly developed time-of-flight technique involving the
continuous rotation of a single crystal specimen, allowed us to measure a four
dimensional volume in (Q,E) space and, thus, determine the dispersion surface
and linewidths of the $A_{1g}$ (~ 102 meV) and $A_u$ (~ 159 meV) type phonon
modes for the whole Brillouin zone. Despite of having linewidths of $\Gamma =
10 meV$, $A_{1g}$ modes do not strongly contribute to the total electron-phonon
coupling constant $\lambda$. However, experimental linewidths show a remarkable
agreement with ab-initio calculations over the complete phonon energy range
demonstrating the accuracy of such calculations in a rare comparison to a
comprehensive experimental data set.

22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg