Zobrazeno 1 - 10
of 11 638
pro vyhledávání: '"Norman, H."'
We describe a first-principles method to apply lattice QCD to compute the order $\alpha_{\mathrm{EM}}$ corrections to $K\to\pi\ell\nu_\ell$ decay. This method formulates the calculation in infinite volume with the conventional infinite-volume, contin
Externí odkaz:
http://arxiv.org/abs/2402.08915
Autor:
Jung, Chulwoo, Christ, Norman H.
We report on our study of the Riemannian Manifold HMC (RMHMC) algorithm with the mass term for the gauge momenta replaced by rational functions of the gauge covariant Laplace operator. A comparison of HMC and RMHMC on a 2+1+1 flavor dynamical ensembl
Externí odkaz:
http://arxiv.org/abs/2401.13226
We propose a lattice-QCD-suitable framework for computing the two-photon long-distance contribution to the complex $K_{\rm L}\rightarrow\mu^+\mu^-$ decay amplitude, where QED is treated perturbatively in the continuum and infinite-volume. We provide
Externí odkaz:
http://arxiv.org/abs/2312.01224
Autor:
Bai, Ziyuan, Christ, Norman H., Karpie, Joseph M., Sachrajda, Christopher T., Soni, Amarjit, Wang, Bigeng
A lattice QCD approach to the calculation of the long-distance contributions to $\epsilon_K$ is presented. This parameter describes indirect CP violation in $K\to\pi\pi$ decay. While the short-distance contribution to $\epsilon_K$ can be accurately c
Externí odkaz:
http://arxiv.org/abs/2309.01193
Lattice QCD calculations of leptonic decay constants have now reached sub-percent precision so that isospin-breaking corrections, including QED effects, must be included to fully exploit this precision in determining fundamental quantities, in partic
Externí odkaz:
http://arxiv.org/abs/2304.08026