TY - JOUR
T1 - Parity-expanded variational analysis for nonzero momentum
AU - Stokes, Finn M.
AU - Kamleh, Waseem
AU - Leinweber, Derek B.
AU - Mahbub, M. Selim
AU - Menadue, Benjamin J.
AU - Owen, Benjamin J.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/12/15
Y1 - 2015/12/15
N2 - In recent years, the use of variational analysis techniques in lattice QCD has been demonstrated to be successful in the investigation of the rest-mass spectrum of many hadrons. However, due to parity mixing, more care must be taken for investigations of boosted states to ensure that the projected correlation functions provided by the variational analysis correspond to the same states at zero momentum. In this paper we present the parity-expanded variational analysis (PEVA) technique, a novel method for ensuring the successful and consistent isolation of boosted baryons through a parity expansion of the operator basis used to construct the correlation matrix.
AB - In recent years, the use of variational analysis techniques in lattice QCD has been demonstrated to be successful in the investigation of the rest-mass spectrum of many hadrons. However, due to parity mixing, more care must be taken for investigations of boosted states to ensure that the projected correlation functions provided by the variational analysis correspond to the same states at zero momentum. In this paper we present the parity-expanded variational analysis (PEVA) technique, a novel method for ensuring the successful and consistent isolation of boosted baryons through a parity expansion of the operator basis used to construct the correlation matrix.
UR - http://www.scopus.com/inward/record.url?scp=84952361945&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.92.114506
DO - 10.1103/PhysRevD.92.114506
M3 - Article
SN - 1550-7998
VL - 92
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 11
M1 - 114506
ER -