23 citations · 45 across the 4 of their papers we have counts for
5 papers · 1 filter
N* Spectroscopy from Lattice QCD: The Roper Explained
Derek Leinweber, Waseem Kamleh, Adrian Kiratidis +6
This brief review focuses on the low-lying even- and odd-parity excitations of the nucleon obtained in recent lattice QCD calculations. Commencing with a survey of the 2014-15 lite…
Transition of in Lattice QCD
Benjamin J. Owen, Waseem Kamleh, Derek B. Leinweber +2
With the ongoing experimental interest in exploring the excited hadron spectrum, evaluations of the matrix elements describing the formation and decay of such states via radiative…
Electromagnetic matrix elements for negative parity nucleons
Benjamin Owen, Waseem Kamleh, Derek Leinweber +2
Here we present preliminary results for the evaluation of the electromagnetic form factors for the lowest-lying negative-parity, spin- nucleons, namely the $S_{11}(153…
Probing the proton and its excitations in full QCD
Benjamin J. Owen, Waseem Kamleh, Derek B. Leinweber +2
We present a first look at the application of variational techniques for the extraction of the electromagnetic properties of an excited nucleon system. In particular, we include pr…
A Fitting Robot for Variational Analysis
Alan Ó Cais, Derek Leinweber, Selim Mahbub +1
We develop a robot algorithm to maximise the number of distinct states reliably extracted from correlator data using the variational analysis method. The robot explores the variati…