The SU(2) quark-antiquark potential in the pseudoparticle approach
|
|
- Kerry Gilbert
- 5 years ago
- Views:
Transcription
1 The SU(2) quark-antiquark potential in the pseudoparticle approach Marc Wagner mcwagner 3 th March 26
2 Outline PP = pseudoparticle Basic principle. Building blocks of PP ensembles. PP ensembles. Quark-antiquark potential. Quantitative results. Summary. Outlook.
3 Basic principle (1) Pseudoparticle approach (PP approach): A numerical technique to approximate Euclidean path integrals (in this talk: SU(2) Yang-Mills theory QCD with infinitely heavy quarks): O = 1 DA O[A]e S[A] Z S[A] = 1 d 4 x F 4g µνf a a 2 µν, Fµν a = µ A a ν ν A a µ + ǫ abc A b µa c ν. A tool to analyze the importance of gauge field configurations with respect to confinement. A method, from which we can get a better understanding of the Yang-Mills path integral.
4 Basic principle (2) PP: any gauge field configuration a a µ, which is localized in space and time. Consider only those gauge field configurations, which can be written as a sum of a fixed number ( 4) of PPs: A a µ (x) = i ρ ab (i)a b µ (x z(i)). (i: PP index; ρ ab (i): degrees of freedom of the i-th PP, i.e. amplitude and color orientation; z(i): position of the i-th PP). Approximate the path integral by an integration over PP degrees of freedom: ( ) DA... dρ ab (i)... i ρab (1)a b µ (x z(1)) ρab (2)a b µ (x z(2)) ρ ab (3)a b µ (x z(3)) A a µ (x) x 1 x 1 x 1 x = x x x x
5 Building blocks of PP ensembles Building blocks of PP ensembles: instantons, antiinstantons, akyrons (λ: PP size). x ν a a µ,instanton(x) = ηµν a x 2 + λ 2 x ν a a µ,antiinstanton (x) = ηa µν x 2 + λ 2 a a µ,akyron(x) = δ a1 x µ x 2 + λ a a µ x µ Degrees of freedom: amplitudes A(i), color orientations C ab (i), positions z(i). A a µ (x) = A(i)Cab (i)a a µ,instanton (x z(i)) A a µ (x) = A(i)Cab (i)a a µ,antiinstanton (x z(i)) A a µ (x) = A(i)Cab (i)a a µ,akyron (x z(i)). Instantons, antiinstantons and akyrons form a basis of all gauge field configurations in the continuum limit.
6 PP ensembles (1) PP ensemble: a fixed number of PPs inside a spacetime hypersphere. Gauge field: A a µ (x) = A(i)C ab (i)a b µ,instanton (x z(i)) + i A(j)C ab (j)a b µ,antiinstanton(x z(j)) + j A(k)C ab (k)a b µ,akyron(x z(k)). k Choose color orientations C ab (i) and positions z(i) randomly. r spacetime 4-dimensional spacetime hypersphere region of strong boundary effects x A a µ is no classical solution (not even close to a classical solution)!!! r boundary Long range interactions between PPs. boundary of spacetime x region of negligibl boundary effects
7 PP ensembles (2) Approximation of the path integral: O = 1 ( ) da(i) O(A(i))e S(A(i)). Z i Solve this multidimensional integral via Monte-Carlo simulations. Exclude boundary effects: observables have to be measured sufficiently far away from the boundary. r spacetime 4-dimensional spacetime hypersphere region of strong boundary effects x r boundary boundary of spacetime x region of negligibl boundary effects
8 Quark-antiquark potential (1) Common tool to determine the potential of a static quark-antiquark pair: Wilson loops. Wilson loop (z: closed spacetime curve): W z [A] = 1 { ( )}) (P 2 Tr exp i dz µ A µ (z). Rectangular Wilson loop (R, T: spatial and temporal extension): W (R,T). Wilson loops quark-antiquark potential (R: quark-antiquark separation): 1 V q q (R) = lim T T ln W (R,T). Assumption: the potential can be parameterized according to V q q (R) = V α R + σr. V q q plotted against R V qq (R) = V - α / R + σ R V =., α = π / 12., σ =
9 Quark-antiquark potential (2) Method 1: Determine the string tension σ and the Coulomb coefficient α Guess the functional dependence of ensemble averages of Wilson loops: ) ( R ln W (R,T) = V (R + T α T + T ) + β + σrt. R Determine the string tension σ and the Coulomb coefficient α by fitting the Wilson loop ansatz to Monte-Carlo data for ln W (R,T). Several approaches: Area perimeter fits. Creutz ratios. Generalized Creutz ratios....
10 Quark-antiquark potential (3) Method 1: Determine the string tension σ and the Coulomb coefficient α Results for PP ensembles containing 4 PPs: Coulomb coefficient α > attractive Coulomb-like interaction at small quark-antiquark separations. String tension σ > linear potential for large quark-antiquark separations, confinement. σ is an increasing function of the coupling constant g adjust the physical scale by choosing appropriate values for g..5 σ plotted against g σ(g) S 12 -ensemble: N = 35 12, n = 1., λ =.5.4 string tension σ Marc Wagner, The SU(2) quark-antiquark potential in the pseudoparticle approach, 3 th March coupling constant g
11 Quantitative results For quantitative results, including the string tension, we need other dimensionful quantities: Topological susceptibility χ = Q 2 V /V. Critical temperature T critical. Dimensionless quantities (physically meaningful): χ 1/4 /σ 1/2, T critical /σ 1/2, α. Consider different g = (diameter of the spacetime hypersphere.9 fm fm). Results are in qualitative agreement with results from lattice calculations. Consistent scaling behavior of σ, χ and T critical. α should be constant. dimensionless ratio χ 1/4 /σ 1/2 dimensionless ratio T critical /σ 1/2 Coulomb coefficient α coupling constant g χ 1/4 /σ 1/2 plotted against g χ 1/4 /σ 1/2 (g) S 12 -ensemble: N = 35 12, n = 1., λ =.5 α(g) S 12 -ensemble: N = 35 12, n = 1., λ =.5 lattice results: α = lattice result: χ 1/4 /σ 1/2 =.486 ±.1 S 12 -ensemble T critical /σ 1/2 plotted against g T critical /σ 1/2 (g) S 12 -ensemble: n = 1., λ =.5 lattice result: T critical /σ 1/2 =.694 ± coupling constant g α plotted against g Marc Wagner, The SU(2) quark-antiquark potential in the pseudoparticle approach, 3 th March coupling constant g
12 Quark-antiquark potential (4) Method 2: Calculate the quark-antiquark potential directly For large T: V q q (R)T ln W (R,T). From the slope of ln W (R,T) R=constant we can read off V q q (R). Results are in agreement with our previous results. ln W (R,T) R=constant plotted against T -ln W (R,T) R = constant (T) S 12 -ensemble: N = 35 12,... V q q plotted against R V qq (R) S 12 -ensemble: N = 35 12, n = 1., λ =.5, g = 4. -ln W (R,T) R = constant R = a R = 2 a R = 3 a R = 4 a R = 5 a R = 6 a R = 7 a R = 8 a R = 9 a R = 1 a R = 11 a R = 12 a quark antiquark potential V qq in 1/fm least squares fit of V - α/r + σr cutoff effects.5 Marc1 Wagner, 1.5 The SU(2) 2 quark-antiquark 2.5 potential 3 in the pseudoparticle.1 approach, th March temporal extension T quark antiquark separation R in fm
13 Summary The PP approach with 4 instantons, antiinstantons and akyrons is able to reproduce many essential features of SU(2) Yang-Mills theory: Quark-antiquark potential: Linear potential for large quark-antiquark separations (confinement). Coulomb-like attractive force for small quark-antiquark separations. Consistent scaling behavior of σ, χ and T critical. Dimensionless quantities χ 1/4 /σ 1/2, T critical /σ 1/2 and α are in qualitative agreement with results from lattice calculations.
14 Outlook Compare different PP ensembles to analyze, which gauge field configurations are responsible for confinement: Pure akyron ensembles (no topological charge density) deconfinement. Gaussian localized PPs (PPs of limited size) deconfinement for small PP size, confinement for large PP size. Overall picture: topological charge and long range interactions between PPs are important for confinement.
The adjoint potential in the pseudoparticle approach: string breaking and Casimir scaling
The adjoint potential in the pseudoparticle approach: string breaking and Casimir scaling Christian Szasz University of Erlangen-Nürnberg christian.szasz@theorie3.physik.uni-erlangen.de Marc Wagner Humboldt
More informationThe pseudoparticle approach in SU(2) Yang-Mills theory
The pseudoparticle approach in SU(2) Yang-Mills theory Den Naturwissenschaftlichen Fakultäten der Friedrich-Alexander-Universität Erlangen-Nürnberg zur Erlangung des Doktorgrades vorgelegt von Marc Wagner
More informationOn the definition and interpretation of a static quark anti-quark potential in the colour-adjoint channel
On the definition and interpretation of a static quark anti-quark potential in the colour-adjoint channel Effective Field Theory Seminar Technische Universität München, Germany Marc Wagner, Owe Philipsen
More informationSome selected results of lattice QCD
Some selected results of lattice QCD Heidelberg, October 12, 27 Kurt Langfeld School of Mathematics and Statistics University of Plymouth p.1/3 Glueball spectrum: no quarks (quenched approximation) 12
More informationBottomonium melting at T >> Tc. Pedro Bicudo CFTP, IST, Lisboa
Bottomonium melting at T >> Tc Pedro Bicudo CFTP, IST, Lisboa Motivation The finite T string tension The quark mass gap equation with finite T and finite quark mass Chiral symmetry and confinement crossovers
More informationQCD and Instantons: 12 Years Later. Thomas Schaefer North Carolina State
QCD and Instantons: 12 Years Later Thomas Schaefer North Carolina State 1 ESQGP: A man ahead of his time 2 Instanton Liquid: Pre-History 1975 (Polyakov): The instanton solution r 2 2 E + B A a µ(x) = 2
More informationThe Chiral and Deconfinement Phase Transitions in Strongly-Interacting Matter
The Chiral and Deconfinement Phase Transitions in Strongly-Interacting Matter in collaboration with: B-J. Schaefer & J. Wambach Schaefer, MW: PRD 79 (1418) arxiv: 812.2855 [hep-ph] 9.3.29 Mathias Wagner
More informationCenter-symmetric dimensional reduction of hot Yang-Mills theory
Center-symmetric dimensional reduction of hot Yang-Mills theory Institut für Theoretische Physik, ETH Zürich, CH-809 Zürich, Switzerland E-mail: kurkela@phys.ethz.ch It is expected that incorporating the
More informationGluon chains and the quark-antiquark potential
Jeff Greensite Physics and Astronomy Dept., San Francisco State University, San Francisco, CA 9432, USA E-mail: jgreensite@gmail.com Institute of Physics, Slovak Academy of Sciences, SK 845 Bratislava,
More informationSuitable operator to test the Abelian dominance for sources in higher representation
Suitable operator to test the Abelian dominance for sources in higher representation Ryutaro Matsudo Graduate School of Science and Engineering, Chiba University May 31, 2018 New Frontiers in QCD 2018
More informationA MONTE CARLO STUDY OF SU(2) YANG-MILLS THEORY AT FINITE
SLAC-PUB-2572 July 1980 CT) A MONTE CARLO STUDY OF SU(2) YANG-MILLS THEORY AT FINITE TEMPERATURE* Larry D. McLerran and Benjamin Svetitsky Stanford Linear Accelerator Center Stanford University, Stanford,
More informationRelativistic correction to the static potential at O(1/m)
Relativistic correction to the static potential at O(1/m) Miho Koma (Inst. f. Kernphysik, Mainz Univ.) Yoshiaki Koma, Hartmut Wittig Lattice 2007, Regensburg, 30 July 2007 We investigate the relativistic
More informationLattice Gauge Theory: A Non-Perturbative Approach to QCD
Lattice Gauge Theory: A Non-Perturbative Approach to QCD Michael Dine Department of Physics University of California, Santa Cruz May 2011 Non-Perturbative Tools in Quantum Field Theory Limited: 1 Semi-classical
More informationLattice Quantum Chromo Dynamics and the Art of Smearing
Lattice Quantum Chromo Dynamics and the Art of Georg Engel March 25, 2009 KarlFranzensUniversität Graz Advisor: Christian B. Lang Co-workers: M. Limmer and D. Mohler 1 / 29 2 / 29 Continuum Theory Regularization:
More informationComputation of the string tension in three dimensional Yang-Mills theory using large N reduction
Computation of the string tension in three dimensional Yang-Mills theory using large N reduction Joe Kiskis UC Davis Rajamani Narayanan Florida International University 1 Outline Quick result Introduction
More informationG2 gauge theories. Axel Maas. 14 th of November 2013 Strongly-Interacting Field Theories III Jena, Germany
G2 gauge theories Axel Maas 14 th of November 2013 Strongly-Interacting Field Theories III Jena, Germany Overview Why G2? Overview Why G2? G2 Yang-Mills theory Running coupling [Olejnik, Maas JHEP'08,
More informationSolitons in the SU(3) Faddeev-Niemi Model
Solitons in the SU(3) Faddeev-Niemi Model Yuki Amari Tokyo University of Science amari.yuki.ph@gmail.com Based on arxiv:1805,10008 with PRD 97, 065012 (2018) In collaboration with Nobuyuki Sawado (TUS)
More informationHeavy mesons and tetraquarks from lattice QCD
Heavy mesons and tetraquarks from lattice QCD seminar, Technische Universität Darmstadt Marc Wagner Goethe-Universität Frankfurt am Main, Institut für Theoretische Physik mwagner@th.physik.uni-frankfurt.de
More informationNew Mexico State University & Vienna University of Technology
New Mexico State University & Vienna University of Technology work in progress, in coop. with Michael Engelhardt 25. Juni 2014 non-trivial QCD vacuum project out important degrees of freedom start with
More informationHeavy quark free energies and screening from lattice QCD
Heavy quark free energies and screening from lattice QCD Olaf Kaczmarek Universität Bielefeld February 9, 29 RBC-Bielefeld collaboration O. Kaczmarek, PoS CPOD7 (27) 43 RBC-Bielefeld, Phys.Rev.D77 (28)
More informationLATTICE PREDICTIONS FOR THE INTERQUARK POTENTIAL* Eve Kovacs Stanford Linear Accelerator Center Stanford University, Stanford, California 94305
SLAC-PUB-2756 June 1981 (T/E) LATTICE PREDICTIONS FOR THE INTERQUARK POTENTIAL* Eve Kovacs Stanford Linear Accelerator Center Stanford University, Stanford, California 94305 Abstract: The measured values
More informationQ Q dynamics with external magnetic fields
Q Q dynamics with external magnetic fields Marco Mariti University of Pisa 33rd International Symposium on Lattice Field Theory, Kobe 15/07/2015 In collaboration with: C. Bonati, M. D Elia, M. Mesiti,
More informationPhases and facets of 2-colour matter
Phases and facets of 2-colour matter Jon-Ivar Skullerud with Tamer Boz, Seamus Cotter, Leonard Fister Pietro Giudice, Simon Hands Maynooth University New Directions in Subatomic Physics, CSSM, 10 March
More informationDimensional reduction near the deconfinement transition
Dimensional reduction near the deconfinement transition Aleksi Kurkela ETH Zürich Wien 27.11.2009 Outline Introduction Dimensional reduction Center symmetry The deconfinement transition: QCD has two remarkable
More informationarxiv:hep-lat/ v2 17 Jun 2005
BI-TP 25/8 and BNL-NT-5/8 Static quark anti-quark interactions in zero and finite temperature QCD. I. Heavy quark free energies, running coupling and quarkonium binding Olaf Kaczmarek Fakultät für Physik,
More informationPNJL Model and QCD Phase Transitions
PNJL Model and QCD Phase Transitions Hiromichi Nishimura Washington University in St. Louis INT Workshop, Feb. 25, 2010 Phase Transitions in Quantum Chromodynamics This Talk Low Temperature Lattice and
More informationScale hierarchy in high-temperature QCD
Scale hierarchy in high-temperature QCD Philippe de Forcrand ETH Zurich & CERN with Oscar Åkerlund (ETH) Twelfth Workshop on Non-Perturbative QCD, Paris, June 2013 QCD is asymptotically free g 2 4 = High
More informationReal time lattice simulations and heavy quarkonia beyond deconfinement
Real time lattice simulations and heavy quarkonia beyond deconfinement Institute for Theoretical Physics Westfälische Wilhelms-Universität, Münster August 20, 2007 The static potential of the strong interactions
More informationarxiv:hep-lat/ v1 5 Oct 2006
arxiv:hep-lat/6141v1 5 Oct 26 Singlet Free Energies and the Renormalized Polyakov Loop in full QCD for RBC-Bielefeld collaboration Niels Bohr Institute E-mail: kpetrov@nbi.dk We calculate the free energy
More informationNon-perturbative beta-function in SU(2) lattice gauge fields thermodynamics
Non-perturbative beta-function in SU(2) lattice gauge fields thermodynamics O. Mogilevsky, N.N.Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, 25243 Kiev, Ukraine
More informationG 2 -QCD at Finite Density
G 2 -QCD at Finite Density A. Wipf Theoretisch-Physikalisches Institut, FSU Jena collaboration with Axel Maas (Jena) Lorenz von Smekal (Darmstadt/Gießen) Bjoern Wellegehausen (Gießen) Christian Wozar (Jena)
More informationProgress in Gauge-Higgs Unification on the Lattice
Progress in Gauge-Higgs Unification on the Lattice Kyoko Yoneyama (Wuppertal University) in collaboration with Francesco Knechtli(Wuppertal University) ikos Irges(ational Technical University of Athens)
More informationNon-Perturbative Thermal QCD from AdS/QCD
Issues Non-Perturbative Thermal QCD from AdS/QCD * Collaborators: B. Galow, M. Ilgenfritz, J. Nian, H.J. Pirner, K. Veshgini Research Fellow of the Alexander von Humboldt Foundation Institute for Theoretical
More informationPoS(LAT2005)324. D-branes and Topological Charge in QCD. H. B. Thacker University of Virginia
D-branes and Topological Charge in QCD University of Virginia E-mail: hbt8r@virginia.edu The recently observed long-range coherent structure of topological charge fluctuations in QCD is compared with theoretical
More informationThe Role Of Magnetic Monopoles In Quark Confinement (Field Decomposition Approach)
The Role Of Magnetic Monopoles In Quark Confinement (Field Decomposition Approach) IPM school and workshop on recent developments in Particle Physics (IPP11) 2011, Tehran, Iran Sedigheh Deldar, University
More informationInstanton constituents in sigma models and Yang-Mills theory at finite temperature
Instanton constituents in sigma models and Yang-Mills theory at finite temperature Falk Bruckmann Univ. of Regensburg Extreme QCD, North Carolina State, July 8 PRL (8) 56 [77.775] EPJ Spec.Top.5 (7) 6-88
More informationString calculation of the long range Q Q potential
String calculation of the long range Q Q potential Héctor Martínez in collaboration with N. Brambilla, M. Groher (ETH) and A. Vairo April 4, 13 Outline 1 Motivation The String Hypothesis 3 O(1/m ) corrections
More informationLattice computation for the QCD Lambda parameter
Lattice computation for the QCD Lambda parameter twisted gradient flow scheme for quenched system Issaku Kanamori (Hiroshima Univ.) Workshop on Hadron Physics & QCD July 17, 2017 at Academia Sineca based
More informationA Lattice Study of the Glueball Spectrum
Commun. Theor. Phys. (Beijing, China) 35 (2001) pp. 288 292 c International Academic Publishers Vol. 35, No. 3, March 15, 2001 A Lattice Study of the Glueball Spectrum LIU Chuan Department of Physics,
More informationTwo-loop evaluation of large Wilson loops with overlap fermions: the b-quark mass shift, and the quark-antiquark potential
Two-loop evaluation of large Wilson loops with overlap fermions: the b-quark mass shift, and the quark-antiquark potential Department of Physics, University of Cyprus, Nicosia CY-678, Cyprus E-mail: ph00aa@ucy.ac.cy
More informationPhase Transitions in High Density QCD. Ariel Zhitnitsky University of British Columbia Vancouver
Phase Transitions in High Density QCD Ariel Zhitnitsky University of British Columbia Vancouver INT Workshop, March 6-May 26, 2006 I. Introduction 1. The phase diagram of QCD at nonzero temperature and
More informationarxiv: v1 [hep-lat] 15 Nov 2016
Few-Body Systems manuscript No. (will be inserted by the editor) arxiv:6.966v [hep-lat] Nov 6 P. J. Silva O. Oliveira D. Dudal P. Bicudo N. Cardoso Gluons at finite temperature Received: date / Accepted:
More informationCenter-symmetric dimensional reduction of hot Yang-Mills theory
Center-symmetric dimensional reduction of hot Yang-Mills theory Aleksi Kurkela, Univ. of Helsinki Lattice 2008 arxiv:0704.1416, arxiv:0801.1566 with Philippe de Forcrand and Aleksi Vuorinen Aleksi Kurkela,Univ.
More informationDeconfinement and Polyakov loop in 2+1 flavor QCD
Deconfinement and Polyakov loop in 2+ flavor QCD J. H. Weber in collaboration with A. Bazavov 2, N. Brambilla, H.T. Ding 3, P. Petreczky 4, A. Vairo and H.P. Schadler 5 Physik Department, Technische Universität
More informationarxiv: v1 [hep-lat] 18 Nov 2013
t Hooft loop and the phases of SU(2) LGT arxiv:1311.437v1 [hep-lat] 18 Nov 213 G. Burgio Institut für Theoretische Physik Auf der Morgenstelle 14 7276 Tübingen Germany E-mail: giuseppe.burgio@uni-tuebingen.de
More informationInstantons and Monopoles in Maximal Abelian Projection of SU(2) Gluodynamics
ITEP-95-34 hep-th/9506026 arxiv:hep-th/9506026v2 11 Jun 1995 Instantons and Monopoles in Maximal Abelian Projection of SU(2) Gluodynamics M.N. Chernodub and F.V. Gubarev ITEP, Moscow, 117259, Russia and
More informationQuark-gluon plasma from AdS/CFT Correspondence
Quark-gluon plasma from AdS/CFT Correspondence Yi-Ming Zhong Graduate Seminar Department of physics and Astronomy SUNY Stony Brook November 1st, 2010 Yi-Ming Zhong (SUNY Stony Brook) QGP from AdS/CFT Correspondence
More informationThe QCD equation of state at high temperatures
The QCD equation of state at high temperatures Alexei Bazavov (in collaboration with P. Petreczky, J. Weber et al.) Michigan State University Feb 1, 2017 A. Bazavov (MSU) GHP2017 Feb 1, 2017 1 / 16 Introduction
More information1/N Expansions in String and Gauge Field Theories. Adi Armoni Swansea University
1/N Expansions in String and Gauge Field Theories Adi Armoni Swansea University Oberwoelz, September 2010 1 Motivation It is extremely difficult to carry out reliable calculations in the strongly coupled
More informationColor screening in 2+1 flavor QCD
Color screening in 2+1 flavor QCD J. H. Weber 1 in collaboration with A. Bazavov 2, N. Brambilla 1, P. Petreczky 3 and A. Vairo 1 (TUMQCD collaboration) 1 Technische Universität München 2 Michigan State
More informationGauge invariance of the Abelian dual Meissner effect in pure SU(2) QCD
arxiv:hep-lat/51127v1 15 Nov 25 Gauge invariance of the Abelian dual Meissner effect in pure SU(2) QCD Institute for Theoretical Physics, Kanazawa University, Kanazawa 92-1192, Japan and RIKEN, Radiation
More informationPushing dimensional reduction of QCD to lower temperatures
Intro DimRed Center symm. SU(2) Outlook Pushing dimensional reduction of QCD to lower temperatures Philippe de Forcrand ETH Zürich and CERN arxiv:0801.1566 with A. Kurkela and A. Vuorinen Really: hep-ph/0604100,
More informationPossible string effects in 4D from a 5D anisotropic gauge theory in a mean-field background
Possible string effects in 4D from a 5D anisotropic gauge theory in a mean-field background Nikos Irges, Wuppertal U. Based on N.I. & F. Knechtli, arxiv:0905.2757 to appear in NPB + work in progress Corfu,
More informationQuark Mass and Flavour Dependence of the QCD Phase Transition. F. Karsch, E. Laermann and A. Peikert ABSTRACT
BI-TP 2000/41 Quark Mass and Flavour Dependence of the QCD Phase Transition F. Karsch, E. Laermann and A. Peikert Fakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, Germany ABSTRACT We analyze
More informationLattice calculation of static quark correlators at finite temperature
Lattice calculation of static quark correlators at finite temperature J. Weber in collaboration with A. Bazavov 2, N. Brambilla, M.Berwein, P. Petrezcky 3 and A. Vairo Physik Department, Technische Universität
More informationSteffen Hauf
Charmonium in the QGP Debye screening a' la Matsui & Satz Steffen Hauf 17.01.2008 22. Januar 2008 Fachbereich nn Institut nn Prof. nn 1 Overview (1)Charmonium: an Introduction (2)Rehersion: Debye Screening
More informationFrom Quarks and Gluons to Hadrons: Functional RG studies of QCD at finite Temperature and chemical potential
From Quarks and Gluons to Hadrons: Functional RG studies of QCD at finite Temperature and chemical potential Jens Braun Theoretisch-Physikalisches Institut Friedrich-Schiller Universität Jena Quarks, Hadrons
More informationYang-Mills Propagators in Landau Gauge at Non-Vanishing Temperature
Yang-Mills Propagators in Landau Gauge at Non-Vanishing Temperature Leonard Fister, Jan M. Pawlowski, Universität Heidelberg... work in progress ERG Corfu - September 2 Motivation ultimate goal: computation
More informationG 2 QCD Neutron Star. Ouraman Hajizadeh in collaboration with Axel Maas. November 30, 2016
G 2 QCD Neutron Star Ouraman Hajizadeh in collaboration with Axel Maas November 30, 2016 Motivation Why Neutron Stars? Neutron Stars: Laboratory of Strong Interaction Dense Objects: Study of strong interaction
More informationSpatial string tension revisited
Spatial string tension revisited (dimensional reduction at work) York Schröder work together with: M. Laine 1 Motivation RHIC QCD at T > (a few) 100 MeV asymptotic freedom weak coupling expansion slow
More informationtowards a holographic approach to the QCD phase diagram
towards a holographic approach to the QCD phase diagram Pietro Colangelo INFN - Sezione di Bari - Italy in collaboration with F. De Fazio, F. Giannuzzi, F. Jugeau and S. Nicotri Continuous Advances in
More informationString Dynamics in Yang-Mills Theory
String Dynamics in Yang-Mills Theory Uwe-Jens Wiese Albert Einstein Center for Fundamental Physics Institute for Theoretical Physics, Bern University Workshop on Strongly Interacting Field Theories Jena,
More informationRandom Matrix Theory for the Wilson-Dirac operator
Random Matrix Theory for the Wilson-Dirac operator Mario Kieburg Department of Physics and Astronomy SUNY Stony Brook (NY, USA) Bielefeld, December 14th, 2011 Outline Introduction in Lattice QCD and in
More informationHamiltonian approach to QCD: The Polyakov loop potential H. Reinhardt
Hamiltonian approach to QCD: The Polyakov loop potential H. Reinhardt H. R. & J. Heffner Phys. Lett.B718(2012)672 PRD(in press) arxiv:1304.2980 Phase diagram of QCD non-perturbative continuum approaches
More informationLattice Gauge Theories and the AdS/CFT Correspondence.
DFTT 8/2000 February 2000 Lattice Gauge Theories and the AdS/CFT Correspondence. M. Caselle Istituto Nazionale di Fisica Nucleare, Sezione di Torino Dipartimento di Fisica Teorica dell Università di Torino
More informationarxiv:hep-lat/ v1 6 Oct 2000
1 Scalar and Tensor Glueballs on Asymmetric Coarse Lattices C. Liu a, a Department of Physics, Peking University, Beijing 100871, P. R. China arxiv:hep-lat/0010007v1 6 Oct 2000 Scalar and tensor glueball
More informationHeavy quark free energies, screening and the renormalized Polyakov loop
Heavy quark free energies, screening and the renormalized Polyakov loop Olaf Kaczmarek Felix Zantow Universität Bielefeld October 6, 26 VI Workshop III, Rathen, October, 26 p./9 Charmonium suppression..75.5
More informationTermodynamics and Transport in Improved Holographic QCD
Termodynamics and Transport in Improved Holographic QCD p. 1 Termodynamics and Transport in Improved Holographic QCD Francesco Nitti APC, U. Paris VII Large N @ Swansea July 07 2009 Work with E. Kiritsis,
More informationQCD Vacuum, Centre Vortices and Flux Tubes
QCD Vacuum, Centre Vortices and Flux Tubes Derek Leinweber Centre for the Subatomic Structure of Matter and Department of Physics University of Adelaide QCD Vacuum, Centre Vortices and Flux Tubes p.1/50
More informationarxiv:hep-lat/ v1 29 Sep 1997
1 Topology without cooling: instantons and monopoles near to deconfinement M. Feurstein a, E.-M. Ilgenfritz b, H. Markum a, M. Müller-Preussker b and S. Thurner a HUB EP 97/66 September 19, 1997 arxiv:hep-lat/9709140v1
More informationFinite Temperature Field Theory
Finite Temperature Field Theory Dietrich Bödeker, Universität Bielefeld 1. Thermodynamics (better: thermo-statics) (a) Imaginary time formalism (b) free energy: scalar particles, resummation i. pedestrian
More informationThe heavy-light sector of N f = twisted mass lattice QCD
The heavy-light sector of N f = 2 + 1 + 1 twisted mass lattice QCD Marc Wagner Humboldt-Universität zu Berlin, Institut für Physik mcwagner@physik.hu-berlin.de http://people.physik.hu-berlin.de/ mcwagner/
More informationLattice study of quantum entanglement in SU(3) Yang-Mills theory at zero and finite temperatures
Lattice study of quantum entanglement in SU(3) Yang-Mills theory at zero and finite temperatures Yoshiyuki Nakagawa Graduate School of Science and Technology, Niigata University, Igarashi-2, Nishi-ku,
More informationSeminar presented at the Workshop on Strongly Coupled QCD: The Confinement Problem Rio de Janeiro UERJ November 2011
and and Seminar presented at the Workshop on Strongly Coupled QCD: The Problem Rio de Janeiro UERJ 28-30 November 2011 Work done in collaboration with: N.R.F. Braga, H. L. Carrion, C. N. Ferreira, C. A.
More informationConfining and conformal models
Confining and conformal models Lecture 4 Hasenfratz University of Colorado, Boulder 2011 Schladming Winter School Technicolor models are candidates for dynamical electroweak symmetry breaking gauge coupling
More informationThe three-quark potential and perfect Abelian dominance in SU(3) lattice QCD
The three-quark potential and perfect Abelian dominance in SU(3) lattice QCD, Department of Physics & Division of Physics and Astronomy, Graduate School of Science, Kyoto University, Kitashirakawaoiwake,
More informationInverse Monte-Carlo and Demon Methods for Effective Polyakov Loop Models of SU(N)-YM
Inverse Monte-Carlo and Demon Methods for Effective Polyakov Loop Models of SU(N)-YM, Tobias Kästner, Björn H. Wellegehausen, Andreas Wipf Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität
More informationHamilton Approach to Yang-Mills Theory Confinement of Quarks and Gluons
Hamilton Approach to Yang-Mills Theory Confinement of Quarks and Gluons H. Reinhardt Tübingen Collaborators: G. Burgio, M. Quandt, P. Watson D. Epple, C. Feuchter, W. Schleifenbaum, D. Campagnari, J. Heffner,
More informationEffective theories for QCD at finite temperature and density from strong coupling
XQCD 2011 San Carlos, July 2011 Effective theories for QCD at finite temperature and density from strong coupling Owe Philipsen Introduction to strong coupling expansions SCE for finite temperature: free
More informationExcited states of the QCD flux tube
Excited states of the QCD flux tube Bastian Brandt Forschungsseminar Quantenfeldtheorie 19.11.2007 Contents 1 Why flux tubes? 2 Flux tubes and Wilson loops 3 Effective stringtheories Nambu-Goto Lüscher-Weisz
More informationProbing the Chiral Limit in 2+1 flavor Domain Wall Fermion QCD
Probing the Chiral Limit in 2+1 flavor Domain Wall Fermion QCD Meifeng Lin for the RBC and UKQCD Collaborations Department of Physics Columbia University July 29 - August 4, 2007 / Lattice 2007 @ Regensburg
More informationDual quark condensate and dressed Polyakov loops
Dual quark condensate and dressed Polyakov loops Falk Bruckmann (Univ. of Regensburg) Lattice 28, William and Mary with Erek Bilgici, Christian Hagen and Christof Gattringer Phys. Rev. D77 (28) 947, 81.451
More informationIntroduction to AdS/CFT
Introduction to AdS/CFT D-branes Type IIA string theory: Dp-branes p even (0,2,4,6,8) Type IIB string theory: Dp-branes p odd (1,3,5,7,9) 10D Type IIB two parallel D3-branes low-energy effective description:
More informationExtracting hadron masses from fixed topology simulations
Extracting hadron masses from fixed topology simulations Seminar Field Theory on the Lattice and the Phenomenology of Elementary Particles, Humboldt Universität zu Berlin, Berlin, Germany Marc Wagner in
More informationQuark Model of Hadrons
Quark Model of Hadrons mesons baryons symmetric antisymmetric mixed symmetry Quark Model of Hadrons 2 Why do quarks have color? ground state baryons orbital wave function = symmetic with L=0 SU(3) f x
More informationLattice QCD study for relation between quark-confinement and chiral symmetry breaking
Lattice QCD study for relation between quark-confinement and chiral symmetry breaking Quantum Hadron Physics Laboratory, Nishina Center, RIKEN Takahiro M. Doi ( 土居孝寛 ) In collaboration with Hideo Suganuma
More informationSU(2) Lattice Gauge Theory with a Topological Action
SU(2) Lattice Gauge Theory with a Topological Action Lorinc Szikszai in collaboration with Zoltan Varga Supervisor Daniel Nogradi November 08, 2017 Outline Gauge Theory Lattice Gauge Theory Universality
More informationIsing Lattice Gauge Theory with a Simple Matter Field
Ising Lattice Gauge Theory with a Simple Matter Field F. David Wandler 1 1 Department of Physics, University of Toronto, Toronto, Ontario, anada M5S 1A7. (Dated: December 8, 2018) I. INTRODUTION Quantum
More informationA New Regulariation of N = 4 Super Yang-Mills Theory
A New Regulariation of N = 4 Super Yang-Mills Theory Humboldt Universität zu Berlin Institut für Physik 10.07.2009 F. Alday, J. Henn, J. Plefka and T. Schuster, arxiv:0908.0684 Outline 1 Motivation Why
More informationHamiltonian approach to Yang- Mills Theories in 2+1 Dimensions: Glueball and Meson Mass Spectra
Hamiltonian approach to Yang- Mills Theories in 2+1 Dimensions: Glueball and Meson Mass Spectra Aleksandr Yelnikov Virginia Tech based on hep-th/0512200 hep-th/0604060 with Rob Leigh and Djordje Minic
More informationLattice QCD investigation of heavy-light four-quark systems
Lattice QCD investigation of heavy-light four-quark systems Antje Peters peters@th.physik.uni-frankfurt.de Goethe-Universität Frankfurt am Main in collaboration with Pedro Bicudo, Krzysztof Cichy, Luka
More informationLecture II: Owe Philipsen. The ideal gas on the lattice. QCD in the static and chiral limit. The strong coupling expansion at finite temperature
Lattice QCD, Hadron Structure and Hadronic Matter Dubna, August/September 2014 Lecture II: Owe Philipsen The ideal gas on the lattice QCD in the static and chiral limit The strong coupling expansion at
More informationChemical composition of the decaying glasma
Chemical composition of the decaying glasma Tuomas Lappi BNL tvv@quark.phy.bnl.gov with F. Gelis and K. Kajantie Strangeness in Quark Matter, UCLA, March 2006 Abstract I will present results of a nonperturbative
More informationGluon propagators and center vortices at finite temperature arxiv: v1 [hep-lat] 26 Oct 2009
ITEP-LAT-29-5 at finite temperature arxiv:9.4828v [hep-lat] 26 Oct 29 Integrated Information Center, Kochi University, Akebono-cho, Kochi, 78-852, Japan E-mail: tsaito@rcnp.osaka-u.ac.jp M. N. Chernodub
More informationMagnetofluid Unification in the Yang-Mills Lagrangian
PAQFT 2008 - Singapore, 27 29 November 2008 p. 1 Magnetofluid Unification in the Yang-Mills Lagrangian L.T. Handoko in collaboration with A. Fajarudin, A. Sulaiman, T.P. Djun handoko@teori.fisika.lipi.go.id
More informationGauge-string duality in lattice gauge theories. Sourav Chatterjee
Yang Mills theories Maxwell s equations are a set of four equations that describe the behavior of an electromagnetic field. Hermann Weyl showed that these four equations are actually the Euler Lagrange
More informationInfrared Propagators and Confinement: a Perspective from Lattice Simulations
Infrared Propagators and Confinement: a Perspective from Lattice Simulations Tereza Mendes University of São Paulo & DESY-Zeuthen Work in collaboration with Attilio Cucchieri Summary Lattice studies of
More informationMonopole Condensation and Confinement in SU(2) QCD (1) Abstract
KANAZAWA 93-09 Monopole Condensation and Confinement in SU(2) QCD (1) Hiroshi Shiba and Tsuneo Suzuki Department of Physics, Kanazawa University, Kanazawa 920-11, Japan (September 10, 2018) arxiv:hep-lat/9310010v1
More informationCritical Temperature and Equation of state from N f = 2 twisted mass lattice QCD
Critical Temperature and Equation of state from N f = 2 twisted mass lattice QCD Florian Burger Humboldt University Berlin for the tmft Collaboration: E. M. Ilgenfritz, M. Müller-Preussker, M. Kirchner
More informationDynamical Locking of the Chiral and the Deconfinement Phase Transition
Dynamical Locking of the Chiral and the Deconfinement Phase Transition Jens Braun Friedrich-Schiller-University Jena Quarks, Gluons, and Hadronic Matter under Extreme Conditions St. Goar 17/03/2011 J.
More information