P. Q. Hung, Phys. Rev. Lett. 42
1989
Cited alongside, same era.
I-H. Lee and R. E. Shrock, Phys. Rev. Lett. 59
1990
Cited alongside, same era.
There have been many studies of nonrelativistic bound states due to Yukawa interactions, but these are not directly relevant to our work, since our models are constructed to be invariant under global chiral symmetries and hence to avoid any bare fermion terms, so that the fermions are ultrarelativistic. Some explorations of possible relativistic fermion-fermion bound states resulting from a strong Yukawa interaction include St. Glazek, A. Harindranath, S. Pinsky, J. Shigemitsu, and K. Wilson, Phys. Rev. D 47
1993
Cited alongside, same era.
M. Fischler and J. Oliensis, Phys. Lett. B 119
Original
2003
Cited alongside, same era.
B. Holdom, Phys. Lett. B 694
2010
Cited alongside, same era.
Z. Fodor, K. Holland, J. Kuti, D. Nogradi, and C. Schroeder, Proc. Sci. LAT2007 (2007) 056 [arXiv:0710.3151]; P. Gerhold and K. Jansen, JHEP 0907
Original
2010
Cited alongside, same era.
Some of the many recent papers on this include J. Ellis, J. R. Espinosa, G. F. Giudice, A. Hoecker, and A. Riotto, Phys. Lett. B 679
Original
2012
Cited alongside, same era.
B. Grinstein and P. Uttayarat, JHEP 1107
Original
2012
Cited alongside, same era.
The purpose of this assumption of negligibly small m ϕ m_{\phi} compared with the range of μ \mu of interest for our RG flows is to ensure that the ϕ \phi field is dynamical; if m ϕ m_{\phi} were > > μ >>\mu for the values of μ \mu of interest, then we could integrate it out, obtaining a low-energy effective field theory consisting of just the fermions ψ \psi and χ \chi with a resultant four-fermion operator ∝ ( 1 / m ϕ 2 ) ∑ a [ ψ ¯ a , L χ R ] [ χ ¯ R ψ L a ] + h . c . \propto(1/m_{\phi}^{2})\sum_{a}[\bar{\psi}_{a,L}\chi_{R}][\bar{\chi}_{R}\psi^{a}_{L}]+h.c.
Cited in the paper.