  Weakly interacting massive particles (WIMPs) are well-motivated candidates
for dark matter. One signature of galactic WIMPs is the annual modulation
expected in a detector's interaction rate, which arises from Earth's rotation
around the Sun. Over two decades, the DAMA/LIBRA experiment has observed such
modulation with 250 kg of NaI(Tl) scintillators, in accordance with WIMP
expectations but inconsistent with the negative results of other experiments.
The signal, however, depends on the target, so in order to either validate or
refute the DAMA signal it is necessary to replicate the experiment using the
same material. This is the goal of the ANAIS-112 experiment, currently underway
since August 2017 with 112.5 kg of NaI(Tl). In this work, we present a
reanalysis of three years of data employing an improved analysis chain to
enhance the experimental sensitivity. The results presented here are consistent
with the absence of modulation and inconsistent with DAMA's observation at
nearly 3$\sigma$ C.L., with the potential to reach a 5$\sigma$ level within 8
years of data collection. Additionally, we explore the impact of different
scintillation quenching factors in the comparison between ANAIS-112 and
DAMA/LIBRA.
