Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: s-Wave superconductivity in non-centrosymmetric Re_3W probed by magnetic
  penetration depth   We report measurements of the temperature dependence of the magnetic
penetration depth \lambda(T) in non-centrosymmetric superconductor Re_3W. We
employed two experimental techniques: extraction of \lambda(T) from magnetic
{\em dc}-susceptibility, measured on a powder sample, and the rf tunnel diode
resonator technique, where a bulk polycrystalline sample was used. The results
of both techniques agree: the temperature dependence of the penetration depth
can be well described by weak-coupling, dirty-limit, s-wave BCS theory where we
obtain $\Delta(0)/k_BT_C=1.76$. No evidence for unconventional pairing
resulting from the absence of the inversion symmetry is found.

8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph