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`t Hooft model on the Lattice
/ García Pérez, Margarita (Madrid, IFT) ; González-Arroyo, Antonio (Madrid, Autonoma U. ; Madrid, IFT) ; Keegan, Liam (CERN) ; Okawa, Masanori (Hiroshima U.)
Lattice results are presented for the meson spectrum of 1+1 dimensional gauge theory at large $N$, using the Twisted Eguchi-Kawai model. Comparison is made to the results obtained by `t Hooft in the light cone gauge..
arXiv:1612.07380; IFT-UAM-CSIC-16-129; HUPD-1611; FTUAM-16-43.-
SISSA, 2016-11-28 - 7 p.
- Published in : PoS LATTICE2016 (2016) 337
Fulltext: PDF; External link: PoS server
In : 34th International Symposium on Lattice Field Theory, Southampton, UK, 24 - 30 Jul 2016, pp.337
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The $SU(\infty)$ twisted gradient flow running coupling
/ García Pérez, Margarita (Madrid, IFT) ; González-Arroyo, Antonio (Madrid, IFT ; Madrid, Autonoma U.) ; Keegan, Liam (CERN) ; Okawa, Masanori (Hiroshima U.)
We measure the running of the $SU(\infty)$ 't Hooft coupling by performing a step scaling analysis of the Twisted Eguchi-Kawai (TEK) model, the SU($N$) gauge theory on a single site lattice with twisted boundary conditions. The computation relies on the conjecture that finite volume effects for SU(N) gauge theories defined on a 4-dimensional twisted torus are controlled by an effective size parameter $\tilde l = l \sqrt{N}$, with $l$ the torus period. [...]
arXiv:1412.0941; CERN-PH-TH-2014-233; IFT-UAM-CSIC-14-125; FTUAM-14-50; HUPD-1411; CERN-PH-TH-2014-233; IFT-UAM-CSIC-14-125; FTUAM-14-50; HUPD-1411.-
2015-01-09 - 22 p.
- Published in : JHEP 01 (2015) 038
Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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Properties of hadron screening masses at finite baryonic density
/ Pushkina, Irina (Hiroshima U.) ; de Forcrand, Philippe (Hiroshima U. ; Zurich, ETH ; CERN ; Madrid, Autonoma U. ; Swansea U. ; KEK, Tsukuba ; Hiroshima U., RIISE ; Heidelberg U. ; Heidelberg, FEST ; Hiroshima U. of Economics ; Kyoto U., Yukawa Inst., Kyoto) ; Garcia Perez, Margarita (Hiroshima U. ; Zurich, ETH ; CERN ; Madrid, Autonoma U. ; Swansea U. ; KEK, Tsukuba ; Hiroshima U., RIISE ; Heidelberg U. ; Heidelberg, FEST ; Hiroshima U. of Economics ; Kyoto U., Yukawa Inst., Kyoto) ; Kim, Seyong (Hiroshima U. ; Zurich, ETH ; CERN ; Madrid, Autonoma U. ; Swansea U. ; KEK, Tsukuba ; Hiroshima U., RIISE ; Heidelberg U. ; Heidelberg, FEST ; Hiroshima U. of Economics ; Kyoto U., Yukawa Inst., Kyoto) ; Matsufuru, Hideo (Hiroshima U. ; Zurich, ETH ; CERN ; Madrid, Autonoma U. ; Swansea U. ; KEK, Tsukuba ; Hiroshima U., RIISE ; Heidelberg U. ; Heidelberg, FEST ; Hiroshima U. of Economics ; Kyoto U., Yukawa Inst., Kyoto) ; Nakamura, Atsushi (Hiroshima U. ; Zurich, ETH ; CERN ; Madrid, Autonoma U. ; Swansea U. ; KEK, Tsukuba ; Hiroshima U., RIISE ; Heidelberg U. ; Heidelberg, FEST ; Hiroshima U. of Economics ; Kyoto U., Yukawa Inst., Kyoto) ; Stamatescu, Ion-Olimpiu (Hiroshima U. ; Zurich, ETH ; CERN ; Madrid, Autonoma U. ; Swansea U. ; KEK, Tsukuba ; Hiroshima U., RIISE ; Heidelberg U. ; Heidelberg, FEST ; Hiroshima U. of Economics ; Kyoto U., Yukawa Inst., Kyoto) ; Takaishi, Tetsuya (Hiroshima U. ; Zurich, ETH ; CERN ; Madrid, Autonoma U. ; Swansea U. ; KEK, Tsukuba ; Hiroshima U., RIISE ; Heidelberg U. ; Heidelberg, FEST ; Hiroshima U. of Economics ; Kyoto U., Yukawa Inst., Kyoto) ; Umeda, Takashi (Hiroshima U. ; Zurich, ETH ; CERN ; Madrid, Autonoma U. ; Swansea U. ; KEK, Tsukuba ; Hiroshima U., RIISE ; Heidelberg U. ; Heidelberg, FEST ; Hiroshima U. of Economics ; Kyoto U., Yukawa Inst., Kyoto)
/QCD-TARO Collaboration
The properties of hadron screening masses around the deconfinement phase transition at finite baryonic density can be studied by evaluating the Taylor coefficients with respect to the iso-scalar and iso-vector chemical potentials. We simulate 2-flavour lattice QCD with staggered fermions on a 12*12*24*6 lattice with ma = 0.05 and 0.10 and report investigations of nucleon, pseudo-scalar and vector mesons. [...]
hep-lat/0410017; SWAT-415.-
2004 - 7 p.
- Published in : Phys. Lett. B 609 (2005) 265-270
Access to fulltext document: PDF; Fulltext: PDF; External link: hep-lat/0410017 PDF
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Cooling, Physical Scales and the Vacuum Structure of Y-M Theories
/ Garcia Perez, Margarita (Madrid, Autonoma U.) ; Philipsen, Owe (CERN) ; Stamatescu, Ion-Olimpiu (Heidelberg, FEST)
We present a cooling method controlled by a physical cooling radius that defines a scale below which fluctuations are smoothed out while leaving physics unchanged at all larger scales. This method can be generally used as a gauge invariant low pass filter to extract the physics from noisy MC configurations. [...]
hep-lat/9909029; HD-THEP-99-36; HD-THEP-99-36.-
Heidelberg : Heidelberg Univ. Inst. Theor. Phys., 2000 - 3 p.
Access to fulltext document: PDF; Fulltext: PDF; External link: hep-lat/9909029 PDF
In : 17th International Symposium on Lattice Field Theory, Pisa, Italy, 29 Jun - 3 Jul 1999, pp.541-543
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Topological Properties of the QCD Vacuum at $T$=0 and $T \sim T_{c}$
/ de Forcrand, Philippe (Zurich, ETH) ; Garcia Perez, Margarita (CERN) ; Hetrick, James E. (U. Pacific, Stockton) ; Stamatescu, Ion-Olimpiu (Heidelberg, FEST ; Heidelberg U.)
We study on the lattice the topology of SU(2) and SU(3) Yang-Mills theories at zero temperature and of QCD at temperatures around the phase transition. To smooth out dislocations and the UV noise we cool the configurations with an action which has scale invariant instanton solutions for instanton size above about 2.3 lattice spacings. [...]
hep-lat/9802017.-
Geneva : CERN, 1998 - 7 p.
- Published in : , pp. 221-228
Access to fulltext document: 9802017 - PDF; 9802017.fig1 - PS.GZ; Fulltext: PDF; External link: hep-lat/9802017 PDF
In : 31st International Ahrenshoop Symposium on the Theory of Elementary Particles, Buckow, Germany, 2 - 6 Sep 1997, pp.221-228
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