Title: Northern sky Galactic Cosmic Ray anisotropy between 10-1000 TeV with the Tibet Air Shower Array,
Abstract: We report the analysis of the $10-1000$ TeV large-scale sidereal anisotropy
of Galactic cosmic rays (GCRs) with the data collected by the Tibet Air Shower
Array from October, 1995 to February, 2010. In this analysis, we improve the
energy estimate and extend the declination range down to $-30^{\circ}$. We find
that the anisotropy maps above 100 TeV are distinct from that at multi-TeV
band. The so-called "tail-in" and "loss-cone" features identified at low
energies get less significant and a new component appears at $\sim100$ TeV. The
spatial distribution of the GCR intensity with an excess (7.2$\sigma$
pre-trial, 5.2$\sigma$ post-trial) and a deficit ($-5.8\sigma$ pre-trial) are
observed in the 300 TeV anisotropy map, in a good agreement with IceCube's
results at 400 TeV. Combining the Tibet results in the northern sky with
IceCube's results in the southern sky, we establish a full-sky picture of the
anisotropy in hundreds of TeV band. We further find that the amplitude of the
first order anisotropy increases sharply above $\sim100$ TeV, indicating a new
component of the anisotropy. All these results may shed new light on
understanding the origin and propagation of GCRs.