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arXiv · 1301.3367

Exploring walking behavior in SU(3) gauge theory with 4 and 8 HISQ quarks

Yasumichi Aoki·Tatsumi Aoyama·Masafumi Kurachi·Toshihide Maskawa·Kei-ichi Nagai·Hiroshi Ohki·Akihiro Shibata·Koichi Yamawaki·Takeshi Yamazaki
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Abstract

We present the report of the LatKMI collaboration on the lattice QCD simulation for the cases of 4 and 8 flavors. The Nf=8 in particular is interesting from the model-building point of view: The typical walking technicolor model with the large anomalous dimension is the so-called one-family model (Farhi-Susskind model). Thus we explore the walking behavior in LQCD with 8 HISQ quarks by comparing with the 4-flavor case (in which the chiral symmetry is spontaneously broken). We report preliminary results on the spectrum, analyzed through the chiral perturbation theory and the finite-size hyperscaling, and we discuss the availability of the Nf=8 QCD to the phenomenology.

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Yasumichi Aoki, Tatsumi Aoyama, Masafumi Kurachi, Toshihide Maskawa, Kei-ichi Nagai, Hiroshi Ohki, Akihiro Shibata, Koichi Yamawaki, Takeshi Yamazaki. 2013-01-15. Exploring walking behavior in SU(3) gauge theory with 4 and 8 HISQ quarks. https://doi.org/10.1142/9789814566254_0008

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