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Title: Instanton liquid properties from lattice QCD

Here, we examined the instanton contribution to the QCD configurations generated from lattice QCD for N F = 0, N F = 2 + 1 and N F = 2 + 1 + 1 dynamical quark flavors from two different and complementary approaches. First via the use of Gradient flow, we computed instanton liquid properties using an algorithm to localize instantons in the gauge field configurations and studied their evolution with flow time. Then, the analysis of the running at low momenta of gluon Green's functions serves as an independent confirmation of the instanton density which can also be derived without the use of the Gradient flow.
 [1] ;  [2] ;  [3] ; ORCiD logo [4] ;  [5]
  1. Cyprus Institute, Nicosia (Cyprus)
  2. Univ. Paris-Sud, Univ. Paris-Saclay, Orsay (France)
  3. Univ. Pablo de Olavide, Sevilla (Spain); Univ. de Granada, Granada (Spain)
  4. Univ. de Huelva, Huelva (Spain); Univ. de Granada, Granada (Spain)
  5. Heidelberg Univ., Heidelberg (Germany); The College of William and Mary, Williamsburg, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Report Number(s):
JLAB-THY-18-2692; DOE/OR/23177-4424; arXiv:1801.10155
Journal ID: ISSN 1029-8479; PII: 7671
Grant/Contract Number:
AC05-06OR23177; NSF PHY-1516509
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 2; Journal ID: ISSN 1029-8479
Springer Berlin
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Lattice QCD; Solitons Monopoles and Instantons; Confinement
OSTI Identifier: