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

Conference · · EPJ Web of Conferences

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.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
DOE Contract Number:
SC0012704
OSTI ID:
1430842
Report Number(s):
BNL-203425-2018-CPPJ
Journal Information:
EPJ Web of Conferences, Vol. 175, Issue 04001; Conference: 35th International Symposium on Lattice Field Theory (Lattice 2017), , Granada, Spain, 6/18/2017 - 6/24/2017; ISSN 2100-014X
Country of Publication:
United States
Language:
English

References (5)

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

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