Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lepton Number Violating Electron Recoils at XENON1T and PANDAX by the
  $U(1)_{B-L}$ Model with Non-Standard Interactions   We propose an $SU(3)_C\times SU(2)_L\times U(1)_{Y}\times U(1)_{B-L}$ model,
in which the neutrino masses and mixings can be generated via Type-I seesaw
mechanism after $U(1)_{B-L}$ breaking. A light mediator emerges and enables
non-standard interaction that violates the lepton number. We show that the
non-standard interaction leads to low energy recoil events that is consistent
with the observed KeV range electron recoil events at direct detection
experiments. The XENON1T electron recoil data are best explained with the light
scalar mediator's combined coupling strength to electron and neutrino
$\sqrt{y'_\nu y_e} = 0.9\times 10^{-6}$. The PANDAX result is consistent with
$\sqrt{y'_\nu y_e} < 1.4 \times 10^{-6}$.

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The categories of this paper are: dg-ga
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph