Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Uncertainty in the Reactor Neutrino Spectrum and Mass Hierarchy
  Determination   One of the challenges that must be overcome in order to determine the
neutrino mass hierarchy using reactor neutrinos is the theoretical uncertainty
in the unoscillated reactor neutrino spectrum: this is one of the reasons why,
recently, it was proposed to add a near detector to the JUNO experiment. A
model-independent treatment of the spectrum uncertainty will be discussed, as
well as the effect that it will have on the final result. Moreover, since the
neutrino spectrum depends on the chemical composition of the fuel, the spectra
at the near and far detectors will be different, because they will receive
neutrinos from different cores. Taking into account the time evolution of the
chemical composition of the fuel in the reactor core, it is possible to
reconstruct the far detector spectrum from the near detector data. We will show
that the method used to reconstruct the spectrum can affect sensitivity to the
mass hierarchy, however if the near detector is large enough the difference
will be negligible.

16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int