منابع مشابه
Hadron scattering lengths in lattice QCD.
1 Abstract Lattice QCD calculation of s-wave hadron scattering lengths in the channels π-π, π-N, K-N, ¯ K-N and N-N is carried out in the quenched approximation at β = 6/g 2 = 5.7. A variant of the method of wall source is developed for this purpose, which reduces the computer time by a factor L 3 on an L 3 × T lattice compared to the conventional point source method and avoids the Fierz mixing...
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We prove that the volumes determined by the lengths of the non-zero vectors ±x in a random lattice L of covolume 1 define a stochastic process that, as the dimension n tends to infinity, converges weakly to a Poisson process on the positive real line with intensity 1 2 . This generalizes earlier results by Rogers ([11, Thm. 3]) and Schmidt ([13, Satz 10]).
متن کاملComputing protein stabilities from their chain lengths.
New amino acid sequences of proteins are being learned at a rapid rate, thanks to modern genomics. The native structures and functions of those proteins can often be inferred using bioinformatics methods. We show here that it is also possible to infer the stabilities and thermal folding properties of proteins, given only simple genomics information: the chain length and the numbers of charged s...
متن کاملExploratory study of nucleon-nucleon scattering lengths in lattice QCD.
An exploratory study is made of the nucleon-nucleon s-wave scattering lengths in quenched lattice QCD with the Wilson quark action. The π-N and π-π scattering lengths are also calculated for comparison. The calculations are made with heavy quarks corresponding to mπ/mρ ≈ 0.73 − 0.95. The results show that the N -N system has an attractive force in both spin-singlet and triplet channels, with th...
متن کاملAbelian dominance of chiral symmetry breaking in lattice QCD.
Calculations of the chiral condensate 〈χ̄χ〉 on the lattice using staggered fermions and the Lanczos algorithm are presented. Four gauge fields are considered: the quenched non-Abelian field, an Abelian projected field, and monopole and photon fields further decomposed from the Abelian field. Abelian projection is performed in maximal Abelian gauge and in Polyakov gauge. The results show that mon...
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ژورنال
عنوان ژورنال: Discrete Mathematics
سال: 2013
ISSN: 0012-365X
DOI: 10.1016/j.disc.2013.05.016