276 citations · 553 across the 22 of their papers we have counts for
23 papers
Ordering of Spin- Excitations of the Nucleon in Lattice QCD
M. S. Mahbub, Waseem Kamleh, Derek B. Leinweber +2
We present results for the negative parity low-lying state of the nucleon, (1535 MeV) , from a variational analysis method. The analysis is perfo…
Positive-parity Excited-states of the Nucleon in Quenched Lattice QCD
M. S. Mahbub, Alan Ó Cais, Waseem Kamleh +2
Positive-parity spin-1/2 excitations of the nucleon are explored in lattice QCD. The variational method is used in this investigation and several correlation matrices are employed.…
Low-lying positive-parity excited states of the nucleon
M. S. Mahbub, Alan Ó Cais, Waseem Kamleh +3
We present an overview of the correlation-matrix methods developed recently by the CSSM Lattice Collaboration for the isolation of excited states of the nucleon. Of particular inte…
Isolating the Roper Resonance in Lattice QCD
M. S. Mahbub, Alan Ò Cais, Waseem Kamleh +3
We present results for the first positive parity excited state of the nucleon, namely, the Roper resonance (=1440 MeV) from a variational analysis technique. The ana…
Isolating Excited States of the Nucleon in Lattice QCD
M. S. Mahbub, Alan Ò Cais, Waseem Kamleh +3
We discuss a robust projection method for the extraction of excited-state masses of the nucleon from a matrix of correlation functions. To illustrate the algorithm in practice, we…
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…