activity
19962004
most citedNo Goldstone boson in NJL and Thirring models

5 citations · 16 across the 6 of their papers we have counts for

collaborators

8 papers

nucl-th2004

Microscopic Calculations of Nuclear EDM

Sachiko Oshima, Takehisa Fujita, Tomoko Asaga

We carry out the microscopic calculations of the atomic EDM in deuterium, Xe and Hg atomic systems. Due to Schiff's theorem, we obtain the atomic EDM only from the finite nuclear s…

hep-th20042 cited

Historical Mistake in Spontaneous Symmetry Breaking

T. Fujita, M. Hiramoto, H. Takahashi

The prediction of a massless boson after the spontaneous chiral symmetry breaking in the classic paper of Nambu and Jona-Lasinio (NJL) is shown to be wrong. Their mistake is due to…

hep-th2003

Color triplet excitations in two dimensional QCD

Makoto Hiramoto, Takehisa Fujita

We present a novel calculation of color triplet excitations in two dimensional QCD with SU(2) colors. It is found that the lowest energy of the color triplet excitations is proport…

hep-th20035 cited

No Goldstone boson in NJL and Thirring models

Takehisa Fujita, Makoto Hiramoto, Hidenori Takahashi

We present an intuitive picture of the chiral symmetry breaking in the NJL and Thirring models. For the current current interaction model with the massless fermion, the vacuum is r…

hep-th20035 cited

New spectrum and condensate in two dimensional QCD

Takehisa Fujita, Makoto Hiramoto, Takeshi Homma

The boson mass and the condensate in two dimensional QCD with colors are numerically evaluated with the Bogoliubov vacuum. It is found that the boson mass is finite at th…

hep-th20034 cited

No massless boson in chiral symmetry breaking in NJL and Thirring models

Makoto Hiramoto, Takehisa Fujita

We show that the chiral symmetry breaking occurs in the vacuum of the massless Nambu-Jona-Lasinio (NJL) and Thirring models without a Goldstone boson. The basic reason of non-exist…