pith. sign in

arxiv: 1305.6006 · v2 · pith:AXGCH4MUnew · submitted 2013-05-26 · ✦ hep-lat · hep-ph

Light composite scalar in twelve-flavor QCD on the lattice

Yasumichi Aoki , Tatsumi Aoyama , Masafumi Kurachi , Toshihide Maskawa , Kei-ichi Nagai , Hiroshi Ohki , Enrico Rinaldi , Akihiro Shibata
show 2 more authors
Koichi Yamawaki Takeshi Yamazaki
This is my paper
classification ✦ hep-lat hep-ph
keywords lightscalarstatetwelve-flavorcompositecorrelatorsinterpolatinglattice
0
0 comments X
read the original abstract

Based on lattice simulations using highly improved staggered quarks for twelve-flavor QCD with several bare fermion masses, we observe a flavor-singlet scalar state lighter than the pion in the correlators of fermionic interpolating operators. The same state is also investigated using correlators of gluonic interpolating operators. Combined with our previous study, that showed twelve-flavor QCD to be consistent with being in the conformal window, we infer that the lightness of the scalar state is due to infrared conformality. This result shed some light on the possibility of a light composite Higgs boson ("technidilaton") in walking technicolor theories.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. The Roberge-Weiss transition as a probe for conformality in many-flavor QCD

    hep-lat 2026-04 unverdicted novelty 7.0

    For eight-flavor QCD the Roberge-Weiss transition temperature vanishes in the chiral limit, placing the theory inside the conformal window.

  2. Zeros of the partition function for 12 flavor QCD

    hep-lat 2026-06 unverdicted novelty 5.0

    Numerical evidence from partition function zeros supports a first-order phase transition line in 12-flavor QCD ending at a second-order critical point near bare quark mass 0.05.

  3. Zeros of the partition function for 12 flavor QCD

    hep-lat 2026-06 unverdicted novelty 4.0

    Numerical study of partition function zeros in 12-flavor lattice QCD finds strong evidence for first-order transitions at m_q=0.02 with scaling d=3.98(6) and suggests critical mass m_q^c approximately 0.05 where the t...