Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Berruto, F"'
Calculation of the neutron electric dipole moment with two dynamical flavors of domain wall fermions
Publikováno v:
Phys.Rev.D73:054509,2006
We present a study of the neutron electric dipole moment ($\vec d_N$) within the framework of lattice QCD with two flavors of dynamical lig ht quarks. The dipole moment is sensitive to the topological structure of the gaug e fields, and accuracy can
Externí odkaz:
http://arxiv.org/abs/hep-lat/0512004
We present preliminary results for nucleon dipole moments computed with domain wall fermions. Our main target is the electric dipole moment of the neutron arising from the theta term in the gauge part of the QCD lagrangian. The calculated magnetic di
Externí odkaz:
http://arxiv.org/abs/hep-lat/0411003
Let B be the largest spacing between adjacent eigenvalues of the Polyakov loop. We propose to employ the distribution of B as an order parameter for the finite temperature phase transition in SU(N) lattice gauge theories. Using smeared links to reduc
Externí odkaz:
http://arxiv.org/abs/hep-lat/0308037
Autor:
Berruto, F., Schwetz, M.
We propose a strong coupling expansion as a possible tool to obtain qualitative and quantitative informations about N=1 SYM theory. We point out the existence of a mapping between strongly coupled lattice N=1 SYM theory and a generalized SO(4) antife
Externí odkaz:
http://arxiv.org/abs/hep-lat/0208061
Publikováno v:
Phys.Rev. D65 (2002) 094516
We present the results of an exploratory numerical study of two dimensional QCD with overlap fermions. We have performed extensive simulations for U(N_c) and SU(N_c) color groups with N_c=2, 3, 4 and coupling constants chosen to satisfy the 't Hooft
Externí odkaz:
http://arxiv.org/abs/hep-lat/0201010
Publikováno v:
Nucl.Phys.Proc.Suppl. 106 (2002) 733-735
We present some results of a numerical investigation of the 't Hooft model with 2,3 and 4 colors, regularized on the lattice with overlap fermions.
Comment: 3 pages, 2 figures, Lattice2001(chiral)
Comment: 3 pages, 2 figures, Lattice2001(chiral)
Externí odkaz:
http://arxiv.org/abs/hep-lat/0110079
Publikováno v:
Nucl.Phys.Proc.Suppl. 94 (2001) 657-660
We analyse the pure Chern-Simons theory on an Euclidean infinite lattice. We point out that, as a consequence of its symmetries, the Chern-Simons theory does not have an integrable kernel. Due to the linearity of the action in the derivatives, the si
Externí odkaz:
http://arxiv.org/abs/hep-lat/0011052
Publikováno v:
Phys.Lett. B489 (2000) 243-250
We introduce a simple method to find localized exact fermionic zero modes for any local fermionic action. The zero modes are attached to specific local gauge configurations. Examples are provided for staggered and Wilson fermion actions in 2-6 dimens
Externí odkaz:
http://arxiv.org/abs/hep-lat/0006030
Publikováno v:
Phys.Lett. B487 (2000) 366-370
We revisit the lattice formulation of the Abelian Chern-Simons model defined on an infinite Euclidean lattice. We point out that any gauge invariant, local and parity odd Abelian quadratic form exhibits, in addition to the zero eigenvalue associated
Externí odkaz:
http://arxiv.org/abs/hep-th/0004203
We analyse - within the hamiltonian formalism with staggered fermions - the patterns of chiral symmetry breaking for the strongly coupled Schwinger and $U({\cal N}_c)$-color `t Hooft models with one and two flavor of fermions. Using the correspondenc
Externí odkaz:
http://arxiv.org/abs/hep-lat/0001012