Electric Polarizability of Neutral Hadrons from Lattice QCD

Simple item page
dc.creatorChristensen, Joe
dc.creatorWilcox, Walter
dc.creatorLee, Frank X.
dc.creatorZhou, Leming
dc.date2004-08-16
dc.date.accessioned2026-07-07T10:48:25Z
dc.date.available2026-07-07T10:48:25Z
dc.descriptionBy simulating a uniform electric field on a lattice and measuring the change in the rest mass, we calculate the electric polarizability of neutral mesons and baryons using the methods of quenched lattice QCD. Specifically, we measure the electric polarizability coefficient from the quadratic response to the electric field for 10 particles: the vector mesons $ρ^0$ and $K^{*0}$; the octet baryons n, $Σ^0$, $Λ_{o}^{0}$, $Λ_{s}^{0}$, and $Ξ^0$; and the decouplet baryons $Δ^0$, $Σ^{*0}$, and $Ξ^{*0}$. Independent calculations using two fermion actions were done for consistency and comparison purposes. One calculation uses Wilson fermions with a lattice spacing of $a=0.10 $fm. The other uses tadpole improved Lüsher-Weiss gauge fields and clover quark action with a lattice spacing $a=0.17 $fm. Our results for neutron electric polarizability are compared to experiment.
dc.description25 pages, 20 figures
dc.identifierhttps://arxiv.org/abs/hep-lat/0408024
dc.identifierhttp://arxiv.org/abs/hep-lat/0408024
dc.identifierPhys.Rev.D72:034503,2005
dc.identifierdoi:10.1103/PhysRevD.72.034503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183870
dc.subjectHigh Energy Physics - Lattice
dc.titleElectric Polarizability of Neutral Hadrons from Lattice QCD
dc.typetext

Files

Collections

arXiv