Light meson physics from maximally twisted mass lattice QCD

被引:113
作者
Baron, Remi [1 ]
Boucaud, Phillip [1 ]
Dimopoulos, Petros [2 ,3 ]
Frezzotti, Roberto [2 ,3 ]
Palao, David [2 ,3 ]
Rossi, Giancarlo [2 ,3 ]
Farchioni, Federico [4 ]
Muenster, Gernot [4 ]
Sudmann, Tobias [4 ]
Gimenez, Vicent [5 ,6 ]
Herdoiza, Gregorio [7 ]
Jansen, Karl [7 ]
Lubicz, Vittorio [8 ,9 ]
Simula, Silvano [9 ]
Michael, C. [10 ]
Scorzato, L. [11 ]
Shindler, A. [12 ]
Urbach, C. [13 ,14 ]
Wenger, U. [15 ]
机构
[1] Univ Paris 11, Phys Theor Lab, Ctr Orsay, F-91405 Orsay, France
[2] Univ Roma Tor Vergata, Dip Fis, I-00133 Rome, Italy
[3] Ist Nazl Fis Nucl, Sez Tor Vergata, I-00133 Rome, Italy
[4] Univ Munster, Inst Theoret Phys, D-48149 Munster, Germany
[5] Univ Valencia, CSIC, Dep Fis Teor, E-46100 Burjassot, Spain
[6] Univ Valencia, CSIC, IFIC, E-46100 Burjassot, Spain
[7] DESY, NIC, D-15738 Zeuthen, Germany
[8] Univ Roma Tre, Dip Fis, I-00146 Rome, Italy
[9] Ist Nazl Fis Nucl, Sez Roma Tre 3, I-00146 Rome, Italy
[10] Univ Liverpool, Theoret Phys Div, Dept Math Sci, Liverpool L69 7ZL, Merseyside, England
[11] ECT, I-38100 Trento, Italy
[12] Univ Autonoma Madrid, Fac Ciencias C11, Inst Fis Teor, E-28049 Madrid, Spain
[13] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theory, D-53115 Bonn, Germany
[14] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
[15] Univ Bern, Inst Theoret Phys, CH-3012 Bern, Switzerland
关键词
Lattice QCD; Quark Masses and SM Parameters; QCD; CHIRAL PERTURBATION-THEORY; PHASE-STRUCTURE; PION MASS; QUARK MASS; RENORMALIZATION; DEPENDENCE; SPECTRUM; FERMIONS; FLAVORS; SCALE;
D O I
10.1007/JHEP08(2010)097
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We present a comprehensive investigation of light meson physics using maximally twisted mass fermions for N-f = 2 mass-degenerate quark flavours. By employing four values of the lattice spacing, spatial lattice extents ranging from 2.0 fm to 2.5 fm and pseudo scalar masses in the range 280 less than or similar to m(PS) less than or similar to 650MeV we control the major systematic effects of our calculation. This enables us to confront our N-f = 2 data with SU(2) chiral perturbation theory and extract low energy constants of the effective chiral Lagrangian and derived quantities, such as the light quark mass.
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页数:41
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