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Title: SU(3) breaking and the pseudo-scalar spectrum in multi-taste QCD

Abstract

Using the Sigma model to explore the lowest order pseudo-scalar spectrum with SU(3) breaking, this talk considers an additional exact "taste" symmetry to mimic species doubling. Rooting replicas of a valid approach such as Wilson fermions reproduces the desired physical spectrum. In contrast, extra symmetries of the rooted staggered approach leave spurious states and a flavor dependent taste multiplicity.

Authors:
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1430842
Report Number(s):
BNL-203425-2018-CPPJ
Journal ID: ISSN 2100-014X
DOE Contract Number:  
SC0012704
Resource Type:
Conference
Journal Name:
EPJ Web of Conferences
Additional Journal Information:
Journal Volume: 175; Journal Issue: 04001; Conference: 35th International Symposium on Lattice Field Theory (Lattice 2017), , Granada, Spain, 6/18/2017 - 6/24/2017; Journal ID: ISSN 2100-014X
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; scalar; lattice; QCD; quark; masses; fermion; symmetry; bosons

Citation Formats

Creutz, Michael. SU(3) breaking and the pseudo-scalar spectrum in multi-taste QCD. United States: N. p., 2017. Web. doi:10.1051/epjconf/201817504001.
Creutz, Michael. SU(3) breaking and the pseudo-scalar spectrum in multi-taste QCD. United States. doi:10.1051/epjconf/201817504001.
Creutz, Michael. Sun . "SU(3) breaking and the pseudo-scalar spectrum in multi-taste QCD". United States. doi:10.1051/epjconf/201817504001. https://www.osti.gov/servlets/purl/1430842.
@article{osti_1430842,
title = {SU(3) breaking and the pseudo-scalar spectrum in multi-taste QCD},
author = {Creutz, Michael},
abstractNote = {Using the Sigma model to explore the lowest order pseudo-scalar spectrum with SU(3) breaking, this talk considers an additional exact "taste" symmetry to mimic species doubling. Rooting replicas of a valid approach such as Wilson fermions reproduces the desired physical spectrum. In contrast, extra symmetries of the rooted staggered approach leave spurious states and a flavor dependent taste multiplicity.},
doi = {10.1051/epjconf/201817504001},
journal = {EPJ Web of Conferences},
issn = {2100-014X},
number = 04001,
volume = 175,
place = {United States},
year = {2017},
month = {6}
}

Conference:
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Works referenced in this record:

Chiral anomalies and rooted staggered fermions
journal, May 2007


Susskind fermions on a euclidean lattice
journal, November 1981


Quark masses, the Dashen phase, and gauge field topology
journal, December 2013


Numerical Estimates of Hadronic Masses in a Pure SU (3) Gauge Theory
journal, December 1981


Monte Carlo integration for lattice gauge theories with fermions
journal, February 1981