Extracting F{sub {pi}} from small lattices: Unquenched results

doi:10.1103/PHYSREVD.73.074023

Title: Extracting F{sub {pi}} from small lattices: Unquenched results

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Abstract

We calculate the response of the microscopic Dirac spectrum to an imaginary isospin chemical potential for QCD with two dynamical flavors in the chiral limit. This extends our previous calculation from the quenched to the unquenched theory. The resulting spectral correlation function in the {epsilon}-regime provides here, too, a new and efficient way to measure F{sub {pi}} on the lattice. We test the method in a hybrid Monte Carlo simulation of the theory with two staggered quarks.

Authors:

Damgaard, P.H.; Splittorff, K. ^[1]; Heller, U.M. ^[2]; Svetitsky, B. ^[3]; Toublan, D. ^[4]

Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen O (Denmark)
American Physical Society, One Research Road, Box 9000, Ridge, New York 11961-9000 (United States)
School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, 69978 Tel Aviv (Israel)
Physics Department, University of Maryland, College Park, Maryland 20742 (United States)

Publication Date:: Sat Apr 01 00:00:00 EST 2006

OSTI Identifier:: 20782819

Resource Type:: Journal Article

Resource Relation:: Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.73.074023; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHIRALITY; COMPUTERIZED SIMULATION; CORRELATION FUNCTIONS; FLAVOR MODEL; ISOSPIN; MONTE CARLO METHOD; POTENTIALS; QUANTUM CHROMODYNAMICS; QUARKS

Citation Formats


                    Damgaard, P.H., Splittorff, K., Heller, U.M., Svetitsky, B., and Toublan, D. Extracting F{sub {pi}} from small lattices: Unquenched results.  United States: N. p., 2006. 
        Web.  doi:10.1103/PHYSREVD.73.074023.

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                    Damgaard, P.H., Splittorff, K., Heller, U.M., Svetitsky, B., & Toublan, D. Extracting F{sub {pi}} from small lattices: Unquenched results.  United States.  doi:10.1103/PHYSREVD.73.074023.

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                    Damgaard, P.H., Splittorff, K., Heller, U.M., Svetitsky, B., and Toublan, D. Sat .  
        "Extracting F{sub {pi}} from small lattices: Unquenched results".  United States.  
        doi:10.1103/PHYSREVD.73.074023.

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@article{osti_20782819,

  title        = {Extracting F{sub {pi}} from small lattices: Unquenched results},

  author       = {Damgaard, P.H. and Splittorff, K. and Heller, U.M. and Svetitsky, B. and Toublan, D.},

  abstractNote = {We calculate the response of the microscopic Dirac spectrum to an imaginary isospin chemical potential for QCD with two dynamical flavors in the chiral limit. This extends our previous calculation from the quenched to the unquenched theory. The resulting spectral correlation function in the {epsilon}-regime provides here, too, a new and efficient way to measure F{sub {pi}} on the lattice. We test the method in a hybrid Monte Carlo simulation of the theory with two staggered quarks.},

  doi          = {10.1103/PHYSREVD.73.074023},

  journal      = {Physical Review. D, Particles Fields},

  number       = 7,

  volume       = 73,

  place        = {United States},

  year         = {Sat Apr 01 00:00:00 EST 2006},

  month        = {Sat Apr 01 00:00:00 EST 2006}

}

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DOI: 10.1103/PHYSREVD.73.074023

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